./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version eb692b52 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/floppy_simpl3.cil-1.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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 06:32:21,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 06:32:21,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 06:32:21,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 06:32:21,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 06:32:21,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 06:32:21,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 06:32:21,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 06:32:21,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 06:32:21,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 06:32:21,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 06:32:21,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 06:32:21,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 06:32:21,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 06:32:21,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 06:32:21,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 06:32:21,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 06:32:21,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 06:32:21,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 06:32:21,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 06:32:21,419 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 06:32:21,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 06:32:21,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 06:32:21,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 06:32:21,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 06:32:21,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 06:32:21,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 06:32:21,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 06:32:21,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 06:32:21,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 06:32:21,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 06:32:21,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 06:32:21,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 06:32:21,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 06:32:21,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 06:32:21,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 06:32:21,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 06:32:21,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 06:32:21,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 06:32:21,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 06:32:21,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 06:32:21,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 06:32:21,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-20 06:32:21,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 06:32:21,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 06:32:21,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 06:32:21,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 06:32:21,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 06:32:21,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 06:32:21,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 06:32:21,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 06:32:21,485 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 06:32:21,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 06:32:21,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 06:32:21,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 06:32:21,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 06:32:21,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 06:32:21,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 06:32:21,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 06:32:21,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 06:32:21,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 06:32:21,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 06:32:21,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 06:32:21,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:32:21,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 06:32:21,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 06:32:21,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 06:32:21,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 06:32:21,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2022-07-20 06:32:21,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 06:32:21,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 06:32:21,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 06:32:21,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 06:32:21,781 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 06:32:21,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-20 06:32:21,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be977206/f1e6f4f64f4b4777ac08932d13d31de0/FLAG3c2482385 [2022-07-20 06:32:22,303 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 06:32:22,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-20 06:32:22,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be977206/f1e6f4f64f4b4777ac08932d13d31de0/FLAG3c2482385 [2022-07-20 06:32:22,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be977206/f1e6f4f64f4b4777ac08932d13d31de0 [2022-07-20 06:32:22,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 06:32:22,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 06:32:22,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 06:32:22,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 06:32:22,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 06:32:22,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4766a701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22, skipping insertion in model container [2022-07-20 06:32:22,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 06:32:22,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 06:32:22,576 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/floppy_simpl3.cil-1.c[2713,2726] [2022-07-20 06:32:22,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:32:22,669 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 06:32:22,682 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/floppy_simpl3.cil-1.c[2713,2726] [2022-07-20 06:32:22,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:32:22,786 INFO L208 MainTranslator]: Completed translation [2022-07-20 06:32:22,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22 WrapperNode [2022-07-20 06:32:22,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 06:32:22,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 06:32:22,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 06:32:22,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 06:32:22,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,873 INFO L137 Inliner]: procedures = 37, calls = 62, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 916 [2022-07-20 06:32:22,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 06:32:22,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 06:32:22,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 06:32:22,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 06:32:22,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 06:32:22,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 06:32:22,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 06:32:22,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 06:32:22,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (1/1) ... [2022-07-20 06:32:22,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:32:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 06:32:22,977 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) [2022-07-20 06:32:22,990 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 [2022-07-20 06:32:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 06:32:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-20 06:32:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-20 06:32:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-20 06:32:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-20 06:32:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-20 06:32:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-20 06:32:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-20 06:32:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-20 06:32:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 06:32:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-20 06:32:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-20 06:32:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 06:32:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 06:32:23,232 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 06:32:23,233 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 06:32:23,240 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-20 06:32:23,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-20 06:32:23,312 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,320 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-20 06:32:23,320 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-20 06:32:23,330 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,334 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,338 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,342 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,344 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,355 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,357 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,372 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,377 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,896 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2022-07-20 06:32:23,896 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2022-07-20 06:32:23,896 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume !false; [2022-07-20 06:32:23,896 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-20 06:32:23,897 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##122: assume false; [2022-07-20 06:32:23,898 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume !false; [2022-07-20 06:32:23,900 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:23,934 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-20 06:32:23,934 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-20 06:32:23,940 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 06:32:23,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 06:32:23,966 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 06:32:23,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:23 BoogieIcfgContainer [2022-07-20 06:32:23,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 06:32:23,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 06:32:23,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 06:32:23,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 06:32:23,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:32:22" (1/3) ... [2022-07-20 06:32:23,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24281f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:32:23, skipping insertion in model container [2022-07-20 06:32:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:22" (2/3) ... [2022-07-20 06:32:23,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24281f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:32:23, skipping insertion in model container [2022-07-20 06:32:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:23" (3/3) ... [2022-07-20 06:32:23,980 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2022-07-20 06:32:23,994 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 06:32:23,994 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-20 06:32:24,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 06:32:24,049 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@396cae6c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8cd434b [2022-07-20 06:32:24,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-20 06:32:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-20 06:32:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-20 06:32:24,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:24,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:24,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:24,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:24,070 INFO L85 PathProgramCache]: Analyzing trace with hash -379437559, now seen corresponding path program 1 times [2022-07-20 06:32:24,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:24,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409781381] [2022-07-20 06:32:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:24,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:24,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409781381] [2022-07-20 06:32:24,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409781381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:24,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:24,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164328533] [2022-07-20 06:32:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:24,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:24,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:24,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:24,329 INFO L87 Difference]: Start difference. First operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) 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) [2022-07-20 06:32:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:24,422 INFO L93 Difference]: Finished difference Result 237 states and 338 transitions. [2022-07-20 06:32:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:24,425 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 [2022-07-20 06:32:24,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:24,440 INFO L225 Difference]: With dead ends: 237 [2022-07-20 06:32:24,441 INFO L226 Difference]: Without dead ends: 235 [2022-07-20 06:32:24,443 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 [2022-07-20 06:32:24,447 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 194 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:24,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 449 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-07-20 06:32:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2022-07-20 06:32:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.4607329842931938) internal successors, (279), 212 states have internal predecessors, (279), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-20 06:32:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 336 transitions. [2022-07-20 06:32:24,528 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 336 transitions. Word has length 8 [2022-07-20 06:32:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:24,529 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 336 transitions. [2022-07-20 06:32:24,529 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) [2022-07-20 06:32:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 336 transitions. [2022-07-20 06:32:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-20 06:32:24,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:24,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:24,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 06:32:24,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:24,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:24,535 INFO L85 PathProgramCache]: Analyzing trace with hash 229440231, now seen corresponding path program 1 times [2022-07-20 06:32:24,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:24,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790765739] [2022-07-20 06:32:24,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:24,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:24,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790765739] [2022-07-20 06:32:24,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790765739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:24,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:24,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 06:32:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032028054] [2022-07-20 06:32:24,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:24,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:24,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:24,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:24,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:24,606 INFO L87 Difference]: Start difference. First operand 235 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:24,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:24,671 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2022-07-20 06:32:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:24,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-07-20 06:32:24,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:24,674 INFO L225 Difference]: With dead ends: 234 [2022-07-20 06:32:24,674 INFO L226 Difference]: Without dead ends: 231 [2022-07-20 06:32:24,677 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 [2022-07-20 06:32:24,679 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 214 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:24,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 393 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-20 06:32:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-07-20 06:32:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.425531914893617) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-20 06:32:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2022-07-20 06:32:24,699 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 11 [2022-07-20 06:32:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:24,700 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2022-07-20 06:32:24,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2022-07-20 06:32:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 06:32:24,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:24,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:24,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 06:32:24,702 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash 24656821, now seen corresponding path program 1 times [2022-07-20 06:32:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:24,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076296707] [2022-07-20 06:32:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:24,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076296707] [2022-07-20 06:32:24,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076296707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:24,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:24,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:24,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851819796] [2022-07-20 06:32:24,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:24,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:24,810 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-07-20 06:32:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:24,914 INFO L93 Difference]: Finished difference Result 348 states and 488 transitions. [2022-07-20 06:32:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:24,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 18 [2022-07-20 06:32:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:24,917 INFO L225 Difference]: With dead ends: 348 [2022-07-20 06:32:24,917 INFO L226 Difference]: Without dead ends: 347 [2022-07-20 06:32:24,917 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 [2022-07-20 06:32:24,918 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 254 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:24,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 592 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-20 06:32:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 328. [2022-07-20 06:32:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.3652482269503545) internal successors, (385), 287 states have internal predecessors, (385), 38 states have call successors, (38), 9 states have call predecessors, (38), 7 states have return successors, (40), 32 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-20 06:32:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 463 transitions. [2022-07-20 06:32:24,934 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 463 transitions. Word has length 18 [2022-07-20 06:32:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:24,934 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 463 transitions. [2022-07-20 06:32:24,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-07-20 06:32:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 463 transitions. [2022-07-20 06:32:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-20 06:32:24,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:24,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:24,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 06:32:24,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:24,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1035240063, now seen corresponding path program 1 times [2022-07-20 06:32:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:24,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855672618] [2022-07-20 06:32:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:24,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855672618] [2022-07-20 06:32:24,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855672618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:24,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:24,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484388841] [2022-07-20 06:32:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:24,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:24,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:24,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:24,985 INFO L87 Difference]: Start difference. First operand 328 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-20 06:32:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:25,005 INFO L93 Difference]: Finished difference Result 516 states and 723 transitions. [2022-07-20 06:32:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:25,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2022-07-20 06:32:25,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:25,009 INFO L225 Difference]: With dead ends: 516 [2022-07-20 06:32:25,009 INFO L226 Difference]: Without dead ends: 516 [2022-07-20 06:32:25,009 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 [2022-07-20 06:32:25,010 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 276 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:25,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-07-20 06:32:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2022-07-20 06:32:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 424 states have (on average 1.3632075471698113) internal successors, (578), 426 states have internal predecessors, (578), 48 states have call successors, (48), 17 states have call predecessors, (48), 14 states have return successors, (61), 44 states have call predecessors, (61), 39 states have call successors, (61) [2022-07-20 06:32:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 687 transitions. [2022-07-20 06:32:25,028 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 687 transitions. Word has length 19 [2022-07-20 06:32:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:25,028 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 687 transitions. [2022-07-20 06:32:25,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-20 06:32:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 687 transitions. [2022-07-20 06:32:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 06:32:25,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:25,030 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] [2022-07-20 06:32:25,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 06:32:25,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1224032757, now seen corresponding path program 1 times [2022-07-20 06:32:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:25,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216663600] [2022-07-20 06:32:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:25,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:25,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216663600] [2022-07-20 06:32:25,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216663600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:25,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:25,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:25,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956631889] [2022-07-20 06:32:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:25,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:25,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:25,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:25,072 INFO L87 Difference]: Start difference. First operand 487 states and 687 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-07-20 06:32:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:25,096 INFO L93 Difference]: Finished difference Result 558 states and 775 transitions. [2022-07-20 06:32:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2022-07-20 06:32:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:25,099 INFO L225 Difference]: With dead ends: 558 [2022-07-20 06:32:25,099 INFO L226 Difference]: Without dead ends: 558 [2022-07-20 06:32:25,100 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 [2022-07-20 06:32:25,101 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 389 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 [2022-07-20 06:32:25,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-20 06:32:25,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 531. [2022-07-20 06:32:25,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 462 states have (on average 1.3636363636363635) internal successors, (630), 470 states have internal predecessors, (630), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 745 transitions. [2022-07-20 06:32:25,116 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 745 transitions. Word has length 22 [2022-07-20 06:32:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:25,117 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 745 transitions. [2022-07-20 06:32:25,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-07-20 06:32:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 745 transitions. [2022-07-20 06:32:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-20 06:32:25,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:25,119 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] [2022-07-20 06:32:25,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 06:32:25,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 664756023, now seen corresponding path program 1 times [2022-07-20 06:32:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:25,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296092860] [2022-07-20 06:32:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:25,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:25,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:25,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296092860] [2022-07-20 06:32:25,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296092860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:25,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:25,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645382604] [2022-07-20 06:32:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:25,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:25,159 INFO L87 Difference]: Start difference. First operand 531 states and 745 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-07-20 06:32:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:25,254 INFO L93 Difference]: Finished difference Result 813 states and 1141 transitions. [2022-07-20 06:32:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 27 [2022-07-20 06:32:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:25,258 INFO L225 Difference]: With dead ends: 813 [2022-07-20 06:32:25,259 INFO L226 Difference]: Without dead ends: 813 [2022-07-20 06:32:25,259 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 [2022-07-20 06:32:25,260 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 123 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:25,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 671 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-07-20 06:32:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 622. [2022-07-20 06:32:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 547 states have (on average 1.3711151736745886) internal successors, (750), 558 states have internal predecessors, (750), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 874 transitions. [2022-07-20 06:32:25,279 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 874 transitions. Word has length 27 [2022-07-20 06:32:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:25,280 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 874 transitions. [2022-07-20 06:32:25,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-07-20 06:32:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 874 transitions. [2022-07-20 06:32:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-20 06:32:25,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:25,282 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] [2022-07-20 06:32:25,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 06:32:25,282 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:25,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1105507547, now seen corresponding path program 1 times [2022-07-20 06:32:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:25,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551101100] [2022-07-20 06:32:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:25,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:25,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551101100] [2022-07-20 06:32:25,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551101100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:25,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:25,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:25,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694568011] [2022-07-20 06:32:25,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:25,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:25,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:25,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:25,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:25,359 INFO L87 Difference]: Start difference. First operand 622 states and 874 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-07-20 06:32:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:25,580 INFO L93 Difference]: Finished difference Result 655 states and 906 transitions. [2022-07-20 06:32:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:25,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 28 [2022-07-20 06:32:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:25,586 INFO L225 Difference]: With dead ends: 655 [2022-07-20 06:32:25,586 INFO L226 Difference]: Without dead ends: 655 [2022-07-20 06:32:25,586 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 [2022-07-20 06:32:25,589 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 518 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:25,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 535 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-07-20 06:32:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 613. [2022-07-20 06:32:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 538 states have (on average 1.3550185873605949) internal successors, (729), 549 states have internal predecessors, (729), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 853 transitions. [2022-07-20 06:32:25,608 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 853 transitions. Word has length 28 [2022-07-20 06:32:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 853 transitions. [2022-07-20 06:32:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-07-20 06:32:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 853 transitions. [2022-07-20 06:32:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-20 06:32:25,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:25,610 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] [2022-07-20 06:32:25,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 06:32:25,611 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash -647747679, now seen corresponding path program 1 times [2022-07-20 06:32:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:25,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961907563] [2022-07-20 06:32:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 06:32:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:25,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:25,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961907563] [2022-07-20 06:32:25,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961907563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:25,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:25,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:25,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629589588] [2022-07-20 06:32:25,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:25,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:25,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:25,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:25,674 INFO L87 Difference]: Start difference. First operand 613 states and 853 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-20 06:32:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:25,791 INFO L93 Difference]: Finished difference Result 661 states and 916 transitions. [2022-07-20 06:32:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:25,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-07-20 06:32:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:25,796 INFO L225 Difference]: With dead ends: 661 [2022-07-20 06:32:25,796 INFO L226 Difference]: Without dead ends: 661 [2022-07-20 06:32:25,796 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 [2022-07-20 06:32:25,797 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 67 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:25,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 743 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-20 06:32:25,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2022-07-20 06:32:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3539823008849559) internal successors, (765), 575 states have internal predecessors, (765), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 889 transitions. [2022-07-20 06:32:25,816 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 889 transitions. Word has length 29 [2022-07-20 06:32:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:25,817 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 889 transitions. [2022-07-20 06:32:25,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-20 06:32:25,817 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 889 transitions. [2022-07-20 06:32:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 06:32:25,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:25,818 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] [2022-07-20 06:32:25,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 06:32:25,819 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:25,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:25,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1847797176, now seen corresponding path program 1 times [2022-07-20 06:32:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794233191] [2022-07-20 06:32:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:25,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 06:32:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794233191] [2022-07-20 06:32:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794233191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:25,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:25,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:25,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793249924] [2022-07-20 06:32:25,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:25,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:25,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:25,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:25,936 INFO L87 Difference]: Start difference. First operand 640 states and 889 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-07-20 06:32:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:26,179 INFO L93 Difference]: Finished difference Result 661 states and 914 transitions. [2022-07-20 06:32:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 06:32:26,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2022-07-20 06:32:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:26,182 INFO L225 Difference]: With dead ends: 661 [2022-07-20 06:32:26,183 INFO L226 Difference]: Without dead ends: 661 [2022-07-20 06:32:26,183 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 [2022-07-20 06:32:26,184 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 382 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:26,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 918 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-20 06:32:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2022-07-20 06:32:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3504424778761062) internal successors, (763), 575 states have internal predecessors, (763), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2022-07-20 06:32:26,198 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 30 [2022-07-20 06:32:26,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:26,198 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2022-07-20 06:32:26,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-07-20 06:32:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2022-07-20 06:32:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 06:32:26,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:26,200 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] [2022-07-20 06:32:26,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 06:32:26,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:26,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1158944726, now seen corresponding path program 1 times [2022-07-20 06:32:26,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:26,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510717621] [2022-07-20 06:32:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:26,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510717621] [2022-07-20 06:32:26,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510717621] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:26,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:26,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869586237] [2022-07-20 06:32:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:26,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:26,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:26,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:26,264 INFO L87 Difference]: Start difference. First operand 640 states and 887 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-07-20 06:32:26,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:26,314 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2022-07-20 06:32:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:26,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 30 [2022-07-20 06:32:26,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:26,317 INFO L225 Difference]: With dead ends: 652 [2022-07-20 06:32:26,318 INFO L226 Difference]: Without dead ends: 652 [2022-07-20 06:32:26,318 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 [2022-07-20 06:32:26,319 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 16 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:26,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 553 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:26,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-07-20 06:32:26,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 651. [2022-07-20 06:32:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3489583333333333) internal successors, (777), 585 states have internal predecessors, (777), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 901 transitions. [2022-07-20 06:32:26,336 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 901 transitions. Word has length 30 [2022-07-20 06:32:26,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:26,336 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 901 transitions. [2022-07-20 06:32:26,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-07-20 06:32:26,337 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 901 transitions. [2022-07-20 06:32:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-20 06:32:26,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:26,338 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] [2022-07-20 06:32:26,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 06:32:26,338 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash 558422765, now seen corresponding path program 1 times [2022-07-20 06:32:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:26,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569971952] [2022-07-20 06:32:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 06:32:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569971952] [2022-07-20 06:32:26,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569971952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:26,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:26,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284730329] [2022-07-20 06:32:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:26,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:26,416 INFO L87 Difference]: Start difference. First operand 651 states and 901 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-20 06:32:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:26,627 INFO L93 Difference]: Finished difference Result 672 states and 926 transitions. [2022-07-20 06:32:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 06:32:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2022-07-20 06:32:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:26,631 INFO L225 Difference]: With dead ends: 672 [2022-07-20 06:32:26,631 INFO L226 Difference]: Without dead ends: 672 [2022-07-20 06:32:26,631 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 [2022-07-20 06:32:26,632 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 381 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:26,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 920 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:26,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-07-20 06:32:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 651. [2022-07-20 06:32:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3454861111111112) internal successors, (775), 585 states have internal predecessors, (775), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2022-07-20 06:32:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 899 transitions. [2022-07-20 06:32:26,647 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 899 transitions. Word has length 31 [2022-07-20 06:32:26,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:26,648 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 899 transitions. [2022-07-20 06:32:26,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-20 06:32:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 899 transitions. [2022-07-20 06:32:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-20 06:32:26,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:26,649 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] [2022-07-20 06:32:26,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 06:32:26,650 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash 186689025, now seen corresponding path program 1 times [2022-07-20 06:32:26,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:26,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728325674] [2022-07-20 06:32:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 06:32:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:26,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:26,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728325674] [2022-07-20 06:32:26,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728325674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:26,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:26,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:26,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140264135] [2022-07-20 06:32:26,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:26,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:26,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:26,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:26,686 INFO L87 Difference]: Start difference. First operand 651 states and 899 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-20 06:32:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:26,792 INFO L93 Difference]: Finished difference Result 679 states and 933 transitions. [2022-07-20 06:32:26,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:26,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 32 [2022-07-20 06:32:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:26,796 INFO L225 Difference]: With dead ends: 679 [2022-07-20 06:32:26,796 INFO L226 Difference]: Without dead ends: 666 [2022-07-20 06:32:26,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:26,797 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 52 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:26,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1079 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-20 06:32:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 649. [2022-07-20 06:32:26,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 575 states have (on average 1.3443478260869566) internal successors, (773), 584 states have internal predecessors, (773), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2022-07-20 06:32:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 895 transitions. [2022-07-20 06:32:26,813 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 895 transitions. Word has length 32 [2022-07-20 06:32:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:26,814 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 895 transitions. [2022-07-20 06:32:26,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-20 06:32:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 895 transitions. [2022-07-20 06:32:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-20 06:32:26,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:26,815 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] [2022-07-20 06:32:26,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 06:32:26,816 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1105645113, now seen corresponding path program 1 times [2022-07-20 06:32:26,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:26,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43688629] [2022-07-20 06:32:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:26,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:26,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43688629] [2022-07-20 06:32:26,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43688629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:26,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:26,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:26,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222054805] [2022-07-20 06:32:26,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:26,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:26,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:26,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:26,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:26,862 INFO L87 Difference]: Start difference. First operand 649 states and 895 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-20 06:32:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:26,902 INFO L93 Difference]: Finished difference Result 657 states and 906 transitions. [2022-07-20 06:32:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 34 [2022-07-20 06:32:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:26,906 INFO L225 Difference]: With dead ends: 657 [2022-07-20 06:32:26,906 INFO L226 Difference]: Without dead ends: 657 [2022-07-20 06:32:26,907 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 [2022-07-20 06:32:26,907 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 5 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:26,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 564 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:26,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-07-20 06:32:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2022-07-20 06:32:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 583 states have (on average 1.3447684391080617) internal successors, (784), 592 states have internal predecessors, (784), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2022-07-20 06:32:26,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2022-07-20 06:32:26,924 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 34 [2022-07-20 06:32:26,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:26,925 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2022-07-20 06:32:26,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-20 06:32:26,925 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2022-07-20 06:32:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-20 06:32:26,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:26,927 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] [2022-07-20 06:32:26,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 06:32:26,927 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash -426823703, now seen corresponding path program 1 times [2022-07-20 06:32:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:26,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673446099] [2022-07-20 06:32:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 06:32:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:26,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:26,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673446099] [2022-07-20 06:32:26,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673446099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:26,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:26,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:26,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459266907] [2022-07-20 06:32:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:26,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:26,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:26,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:26,978 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:27,188 INFO L93 Difference]: Finished difference Result 482 states and 635 transitions. [2022-07-20 06:32:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 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 38 [2022-07-20 06:32:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:27,191 INFO L225 Difference]: With dead ends: 482 [2022-07-20 06:32:27,191 INFO L226 Difference]: Without dead ends: 482 [2022-07-20 06:32:27,191 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 [2022-07-20 06:32:27,192 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 385 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:27,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 831 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-07-20 06:32:27,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 441. [2022-07-20 06:32:27,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 388 states have (on average 1.3144329896907216) internal successors, (510), 397 states have internal predecessors, (510), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-20 06:32:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 585 transitions. [2022-07-20 06:32:27,204 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 585 transitions. Word has length 38 [2022-07-20 06:32:27,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:27,204 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 585 transitions. [2022-07-20 06:32:27,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 585 transitions. [2022-07-20 06:32:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 06:32:27,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:27,206 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] [2022-07-20 06:32:27,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 06:32:27,206 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash -116150226, now seen corresponding path program 1 times [2022-07-20 06:32:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:27,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344031079] [2022-07-20 06:32:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 06:32:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:27,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:27,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344031079] [2022-07-20 06:32:27,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344031079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:27,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:27,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 06:32:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625109244] [2022-07-20 06:32:27,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:27,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 06:32:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 06:32:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:27,305 INFO L87 Difference]: Start difference. First operand 441 states and 585 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:27,477 INFO L93 Difference]: Finished difference Result 436 states and 573 transitions. [2022-07-20 06:32:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 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 41 [2022-07-20 06:32:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:27,480 INFO L225 Difference]: With dead ends: 436 [2022-07-20 06:32:27,480 INFO L226 Difference]: Without dead ends: 436 [2022-07-20 06:32:27,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:27,481 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 74 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:27,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1592 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:27,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-20 06:32:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 424. [2022-07-20 06:32:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.303763440860215) internal successors, (485), 380 states have internal predecessors, (485), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-20 06:32:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 559 transitions. [2022-07-20 06:32:27,503 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 559 transitions. Word has length 41 [2022-07-20 06:32:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:27,504 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 559 transitions. [2022-07-20 06:32:27,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 559 transitions. [2022-07-20 06:32:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 06:32:27,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:27,505 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] [2022-07-20 06:32:27,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 06:32:27,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash 379915809, now seen corresponding path program 1 times [2022-07-20 06:32:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:27,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515961849] [2022-07-20 06:32:27,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:27,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:27,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515961849] [2022-07-20 06:32:27,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515961849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:27,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:27,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 06:32:27,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493936467] [2022-07-20 06:32:27,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:27,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 06:32:27,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:27,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 06:32:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:27,559 INFO L87 Difference]: Start difference. First operand 424 states and 559 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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) [2022-07-20 06:32:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:27,831 INFO L93 Difference]: Finished difference Result 463 states and 605 transitions. [2022-07-20 06:32:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 06:32:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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 [2022-07-20 06:32:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:27,833 INFO L225 Difference]: With dead ends: 463 [2022-07-20 06:32:27,834 INFO L226 Difference]: Without dead ends: 463 [2022-07-20 06:32:27,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-20 06:32:27,835 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 392 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:27,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 941 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-20 06:32:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 424. [2022-07-20 06:32:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.2983870967741935) internal successors, (483), 380 states have internal predecessors, (483), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-20 06:32:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 557 transitions. [2022-07-20 06:32:27,844 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 557 transitions. Word has length 40 [2022-07-20 06:32:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:27,844 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 557 transitions. [2022-07-20 06:32:27,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 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) [2022-07-20 06:32:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 557 transitions. [2022-07-20 06:32:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 06:32:27,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:27,846 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] [2022-07-20 06:32:27,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 06:32:27,846 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash -746395849, now seen corresponding path program 1 times [2022-07-20 06:32:27,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:27,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383205290] [2022-07-20 06:32:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 06:32:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:27,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:27,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383205290] [2022-07-20 06:32:27,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383205290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:27,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:27,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:27,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391737769] [2022-07-20 06:32:27,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:27,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:27,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:27,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:27,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:27,885 INFO L87 Difference]: Start difference. First operand 424 states and 557 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-07-20 06:32:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:28,023 INFO L93 Difference]: Finished difference Result 453 states and 589 transitions. [2022-07-20 06:32:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:28,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 41 [2022-07-20 06:32:28,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:28,025 INFO L225 Difference]: With dead ends: 453 [2022-07-20 06:32:28,025 INFO L226 Difference]: Without dead ends: 434 [2022-07-20 06:32:28,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:28,026 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 80 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:28,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1325 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-20 06:32:28,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 420. [2022-07-20 06:32:28,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2972972972972974) internal successors, (480), 377 states have internal predecessors, (480), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-20 06:32:28,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 552 transitions. [2022-07-20 06:32:28,035 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 552 transitions. Word has length 41 [2022-07-20 06:32:28,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:28,036 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 552 transitions. [2022-07-20 06:32:28,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-07-20 06:32:28,036 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 552 transitions. [2022-07-20 06:32:28,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:28,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:28,037 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] [2022-07-20 06:32:28,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 06:32:28,037 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 931091859, now seen corresponding path program 1 times [2022-07-20 06:32:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:28,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451813001] [2022-07-20 06:32:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:28,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 06:32:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:28,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:28,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451813001] [2022-07-20 06:32:28,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451813001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:28,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:28,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:28,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074315699] [2022-07-20 06:32:28,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:28,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:28,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:28,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:28,104 INFO L87 Difference]: Start difference. First operand 420 states and 552 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:28,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:28,375 INFO L93 Difference]: Finished difference Result 432 states and 565 transitions. [2022-07-20 06:32:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 06:32:28,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 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 43 [2022-07-20 06:32:28,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:28,377 INFO L225 Difference]: With dead ends: 432 [2022-07-20 06:32:28,377 INFO L226 Difference]: Without dead ends: 432 [2022-07-20 06:32:28,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:28,378 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:28,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 915 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-07-20 06:32:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 420. [2022-07-20 06:32:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2945945945945947) internal successors, (479), 377 states have internal predecessors, (479), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-20 06:32:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 551 transitions. [2022-07-20 06:32:28,387 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 551 transitions. Word has length 43 [2022-07-20 06:32:28,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:28,388 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 551 transitions. [2022-07-20 06:32:28,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 551 transitions. [2022-07-20 06:32:28,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 06:32:28,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:28,389 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] [2022-07-20 06:32:28,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 06:32:28,389 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:28,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:28,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1663005190, now seen corresponding path program 1 times [2022-07-20 06:32:28,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:28,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231204415] [2022-07-20 06:32:28,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:28,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:28,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:28,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231204415] [2022-07-20 06:32:28,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231204415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:28,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:28,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:28,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291384072] [2022-07-20 06:32:28,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:28,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:28,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:28,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:28,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:28,442 INFO L87 Difference]: Start difference. First operand 420 states and 551 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-07-20 06:32:28,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:28,680 INFO L93 Difference]: Finished difference Result 439 states and 575 transitions. [2022-07-20 06:32:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:28,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 42 [2022-07-20 06:32:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:28,682 INFO L225 Difference]: With dead ends: 439 [2022-07-20 06:32:28,682 INFO L226 Difference]: Without dead ends: 439 [2022-07-20 06:32:28,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-07-20 06:32:28,683 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 340 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:28,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 921 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-07-20 06:32:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 412. [2022-07-20 06:32:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 363 states have (on average 1.2865013774104683) internal successors, (467), 370 states have internal predecessors, (467), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:28,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 538 transitions. [2022-07-20 06:32:28,693 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 538 transitions. Word has length 42 [2022-07-20 06:32:28,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:28,693 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 538 transitions. [2022-07-20 06:32:28,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-07-20 06:32:28,693 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 538 transitions. [2022-07-20 06:32:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 06:32:28,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:28,694 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] [2022-07-20 06:32:28,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 06:32:28,695 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1049211654, now seen corresponding path program 1 times [2022-07-20 06:32:28,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:28,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396854643] [2022-07-20 06:32:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:28,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:28,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396854643] [2022-07-20 06:32:28,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396854643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:28,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:28,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22428563] [2022-07-20 06:32:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:28,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:28,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:28,730 INFO L87 Difference]: Start difference. First operand 412 states and 538 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 06:32:28,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:28,870 INFO L93 Difference]: Finished difference Result 424 states and 544 transitions. [2022-07-20 06:32:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:28,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 42 [2022-07-20 06:32:28,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:28,873 INFO L225 Difference]: With dead ends: 424 [2022-07-20 06:32:28,873 INFO L226 Difference]: Without dead ends: 424 [2022-07-20 06:32:28,873 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 [2022-07-20 06:32:28,874 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 83 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:28,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 733 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-20 06:32:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 406. [2022-07-20 06:32:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 358 states have (on average 1.270949720670391) internal successors, (455), 364 states have internal predecessors, (455), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 525 transitions. [2022-07-20 06:32:28,891 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 525 transitions. Word has length 42 [2022-07-20 06:32:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:28,892 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 525 transitions. [2022-07-20 06:32:28,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 06:32:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 525 transitions. [2022-07-20 06:32:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:28,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:28,893 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] [2022-07-20 06:32:28,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-20 06:32:28,893 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:28,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1381038349, now seen corresponding path program 1 times [2022-07-20 06:32:28,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:28,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810937197] [2022-07-20 06:32:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:28,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:28,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:28,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810937197] [2022-07-20 06:32:28,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810937197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:28,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:28,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:32:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872767141] [2022-07-20 06:32:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:28,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:32:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:32:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:28,971 INFO L87 Difference]: Start difference. First operand 406 states and 525 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:29,233 INFO L93 Difference]: Finished difference Result 448 states and 577 transitions. [2022-07-20 06:32:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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 43 [2022-07-20 06:32:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:29,236 INFO L225 Difference]: With dead ends: 448 [2022-07-20 06:32:29,236 INFO L226 Difference]: Without dead ends: 447 [2022-07-20 06:32:29,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:29,237 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 228 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:29,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1591 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:29,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-20 06:32:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 421. [2022-07-20 06:32:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 372 states have (on average 1.260752688172043) internal successors, (469), 378 states have internal predecessors, (469), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (43), 28 states have call predecessors, (43), 27 states have call successors, (43) [2022-07-20 06:32:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 545 transitions. [2022-07-20 06:32:29,249 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 545 transitions. Word has length 43 [2022-07-20 06:32:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:29,249 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 545 transitions. [2022-07-20 06:32:29,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,249 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 545 transitions. [2022-07-20 06:32:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:29,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:29,251 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] [2022-07-20 06:32:29,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-20 06:32:29,251 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1380761519, now seen corresponding path program 1 times [2022-07-20 06:32:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:29,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890733920] [2022-07-20 06:32:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:29,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:29,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890733920] [2022-07-20 06:32:29,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890733920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:29,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:29,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:32:29,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391038980] [2022-07-20 06:32:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:29,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:32:29,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:32:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:29,321 INFO L87 Difference]: Start difference. First operand 421 states and 545 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:29,544 INFO L93 Difference]: Finished difference Result 444 states and 570 transitions. [2022-07-20 06:32:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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 43 [2022-07-20 06:32:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:29,547 INFO L225 Difference]: With dead ends: 444 [2022-07-20 06:32:29,547 INFO L226 Difference]: Without dead ends: 434 [2022-07-20 06:32:29,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:29,548 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 49 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:29,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1712 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-20 06:32:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 418. [2022-07-20 06:32:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 369 states have (on average 1.2628726287262872) internal successors, (466), 376 states have internal predecessors, (466), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2022-07-20 06:32:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 541 transitions. [2022-07-20 06:32:29,562 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 541 transitions. Word has length 43 [2022-07-20 06:32:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:29,562 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 541 transitions. [2022-07-20 06:32:29,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 541 transitions. [2022-07-20 06:32:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:29,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:29,564 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] [2022-07-20 06:32:29,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-20 06:32:29,565 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:29,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1017261290, now seen corresponding path program 1 times [2022-07-20 06:32:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:29,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948768619] [2022-07-20 06:32:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 06:32:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:29,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:29,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948768619] [2022-07-20 06:32:29,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948768619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:29,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:29,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:29,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388559766] [2022-07-20 06:32:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:29,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:29,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:29,602 INFO L87 Difference]: Start difference. First operand 418 states and 541 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:29,691 INFO L93 Difference]: Finished difference Result 432 states and 551 transitions. [2022-07-20 06:32:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:29,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 43 [2022-07-20 06:32:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:29,693 INFO L225 Difference]: With dead ends: 432 [2022-07-20 06:32:29,694 INFO L226 Difference]: Without dead ends: 432 [2022-07-20 06:32:29,694 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 [2022-07-20 06:32:29,694 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 95 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:29,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 822 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:29,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-07-20 06:32:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 417. [2022-07-20 06:32:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.25) internal successors, (460), 375 states have internal predecessors, (460), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2022-07-20 06:32:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 535 transitions. [2022-07-20 06:32:29,704 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 535 transitions. Word has length 43 [2022-07-20 06:32:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:29,705 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 535 transitions. [2022-07-20 06:32:29,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-07-20 06:32:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 535 transitions. [2022-07-20 06:32:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 06:32:29,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:29,706 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] [2022-07-20 06:32:29,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-20 06:32:29,707 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:29,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2052650382, now seen corresponding path program 1 times [2022-07-20 06:32:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:29,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476104056] [2022-07-20 06:32:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:29,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 06:32:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:29,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:29,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476104056] [2022-07-20 06:32:29,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476104056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:29,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:29,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:29,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295082363] [2022-07-20 06:32:29,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:29,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:29,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:29,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:29,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:29,761 INFO L87 Difference]: Start difference. First operand 417 states and 535 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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) [2022-07-20 06:32:30,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:30,004 INFO L93 Difference]: Finished difference Result 436 states and 553 transitions. [2022-07-20 06:32:30,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:30,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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 [2022-07-20 06:32:30,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:30,007 INFO L225 Difference]: With dead ends: 436 [2022-07-20 06:32:30,007 INFO L226 Difference]: Without dead ends: 424 [2022-07-20 06:32:30,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:30,008 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 389 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:30,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 878 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:30,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-20 06:32:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 401. [2022-07-20 06:32:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 354 states have (on average 1.2542372881355932) internal successors, (444), 360 states have internal predecessors, (444), 32 states have call successors, (32), 15 states have call predecessors, (32), 14 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2022-07-20 06:32:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 512 transitions. [2022-07-20 06:32:30,017 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 512 transitions. Word has length 44 [2022-07-20 06:32:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:30,017 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 512 transitions. [2022-07-20 06:32:30,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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) [2022-07-20 06:32:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 512 transitions. [2022-07-20 06:32:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-20 06:32:30,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:30,018 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] [2022-07-20 06:32:30,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-20 06:32:30,019 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1187697777, now seen corresponding path program 1 times [2022-07-20 06:32:30,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:30,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623733773] [2022-07-20 06:32:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 06:32:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623733773] [2022-07-20 06:32:30,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623733773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:30,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:30,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:30,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536713232] [2022-07-20 06:32:30,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:30,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:30,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:30,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:30,081 INFO L87 Difference]: Start difference. First operand 401 states and 512 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 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) [2022-07-20 06:32:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:30,221 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2022-07-20 06:32:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:30,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 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 46 [2022-07-20 06:32:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:30,226 INFO L225 Difference]: With dead ends: 492 [2022-07-20 06:32:30,226 INFO L226 Difference]: Without dead ends: 492 [2022-07-20 06:32:30,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:30,227 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 159 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:30,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 768 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-20 06:32:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 454. [2022-07-20 06:32:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 402 states have (on average 1.256218905472637) internal successors, (505), 407 states have internal predecessors, (505), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (42), 30 states have call predecessors, (42), 29 states have call successors, (42) [2022-07-20 06:32:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 581 transitions. [2022-07-20 06:32:30,252 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 581 transitions. Word has length 46 [2022-07-20 06:32:30,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:30,252 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 581 transitions. [2022-07-20 06:32:30,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 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) [2022-07-20 06:32:30,253 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 581 transitions. [2022-07-20 06:32:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-20 06:32:30,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:30,255 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] [2022-07-20 06:32:30,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-20 06:32:30,255 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:30,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 349644568, now seen corresponding path program 1 times [2022-07-20 06:32:30,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:30,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45258501] [2022-07-20 06:32:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 06:32:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:30,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45258501] [2022-07-20 06:32:30,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45258501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:30,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:30,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:30,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035025782] [2022-07-20 06:32:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:30,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:30,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:30,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:30,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:30,303 INFO L87 Difference]: Start difference. First operand 454 states and 581 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 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) [2022-07-20 06:32:30,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:30,416 INFO L93 Difference]: Finished difference Result 461 states and 589 transitions. [2022-07-20 06:32:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:30,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 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 [2022-07-20 06:32:30,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:30,419 INFO L225 Difference]: With dead ends: 461 [2022-07-20 06:32:30,419 INFO L226 Difference]: Without dead ends: 461 [2022-07-20 06:32:30,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:30,420 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 95 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:30,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1058 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:30,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-07-20 06:32:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 436. [2022-07-20 06:32:30,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.261658031088083) internal successors, (487), 391 states have internal predecessors, (487), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-20 06:32:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 561 transitions. [2022-07-20 06:32:30,430 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 561 transitions. Word has length 45 [2022-07-20 06:32:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:30,430 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 561 transitions. [2022-07-20 06:32:30,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 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) [2022-07-20 06:32:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 561 transitions. [2022-07-20 06:32:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 06:32:30,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:30,432 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] [2022-07-20 06:32:30,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-20 06:32:30,432 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:30,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:30,433 INFO L85 PathProgramCache]: Analyzing trace with hash -448653222, now seen corresponding path program 1 times [2022-07-20 06:32:30,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:30,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923313047] [2022-07-20 06:32:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:30,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:30,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:30,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923313047] [2022-07-20 06:32:30,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923313047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:30,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:30,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 06:32:30,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096683960] [2022-07-20 06:32:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:30,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 06:32:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 06:32:30,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:30,501 INFO L87 Difference]: Start difference. First operand 436 states and 561 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:30,695 INFO L93 Difference]: Finished difference Result 477 states and 608 transitions. [2022-07-20 06:32:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:30,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 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 48 [2022-07-20 06:32:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:30,697 INFO L225 Difference]: With dead ends: 477 [2022-07-20 06:32:30,698 INFO L226 Difference]: Without dead ends: 477 [2022-07-20 06:32:30,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:30,698 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 52 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:30,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1627 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:30,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-20 06:32:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 436. [2022-07-20 06:32:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.2564766839378239) internal successors, (485), 391 states have internal predecessors, (485), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-20 06:32:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 559 transitions. [2022-07-20 06:32:30,708 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 559 transitions. Word has length 48 [2022-07-20 06:32:30,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:30,708 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 559 transitions. [2022-07-20 06:32:30,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 559 transitions. [2022-07-20 06:32:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 06:32:30,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:30,710 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] [2022-07-20 06:32:30,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-20 06:32:30,710 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:30,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1621808983, now seen corresponding path program 1 times [2022-07-20 06:32:30,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:30,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743697442] [2022-07-20 06:32:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:30,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-20 06:32:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:30,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:30,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743697442] [2022-07-20 06:32:30,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743697442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:30,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:30,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:30,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860142524] [2022-07-20 06:32:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:30,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:30,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:30,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:30,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:30,768 INFO L87 Difference]: Start difference. First operand 436 states and 559 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-07-20 06:32:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:31,013 INFO L93 Difference]: Finished difference Result 460 states and 585 transitions. [2022-07-20 06:32:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 06:32:31,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 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 48 [2022-07-20 06:32:31,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:31,015 INFO L225 Difference]: With dead ends: 460 [2022-07-20 06:32:31,015 INFO L226 Difference]: Without dead ends: 444 [2022-07-20 06:32:31,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:31,016 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 53 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:31,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1866 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:31,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-07-20 06:32:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 432. [2022-07-20 06:32:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 383 states have (on average 1.2558746736292428) internal successors, (481), 388 states have internal predecessors, (481), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (40), 28 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-20 06:32:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 553 transitions. [2022-07-20 06:32:31,043 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 553 transitions. Word has length 48 [2022-07-20 06:32:31,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:31,043 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 553 transitions. [2022-07-20 06:32:31,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-07-20 06:32:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 553 transitions. [2022-07-20 06:32:31,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:31,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:31,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:31,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-20 06:32:31,045 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:31,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2037628605, now seen corresponding path program 1 times [2022-07-20 06:32:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:31,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275801647] [2022-07-20 06:32:31,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:31,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:31,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:31,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275801647] [2022-07-20 06:32:31,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275801647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:31,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:31,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:31,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177379044] [2022-07-20 06:32:31,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:31,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:31,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:31,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:31,103 INFO L87 Difference]: Start difference. First operand 432 states and 553 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-07-20 06:32:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:31,363 INFO L93 Difference]: Finished difference Result 456 states and 579 transitions. [2022-07-20 06:32:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 06:32:31,364 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), 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 49 [2022-07-20 06:32:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:31,366 INFO L225 Difference]: With dead ends: 456 [2022-07-20 06:32:31,366 INFO L226 Difference]: Without dead ends: 439 [2022-07-20 06:32:31,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:31,367 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 53 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:31,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1828 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:31,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-07-20 06:32:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 427. [2022-07-20 06:32:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 379 states have (on average 1.2559366754617414) internal successors, (476), 384 states have internal predecessors, (476), 31 states have call successors, (31), 16 states have call predecessors, (31), 16 states have return successors, (39), 27 states have call predecessors, (39), 26 states have call successors, (39) [2022-07-20 06:32:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 546 transitions. [2022-07-20 06:32:31,376 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 546 transitions. Word has length 49 [2022-07-20 06:32:31,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:31,376 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 546 transitions. [2022-07-20 06:32:31,376 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), 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) [2022-07-20 06:32:31,377 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 546 transitions. [2022-07-20 06:32:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:31,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:31,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-20 06:32:31,378 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:31,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1318636408, now seen corresponding path program 1 times [2022-07-20 06:32:31,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:31,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502379010] [2022-07-20 06:32:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:31,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502379010] [2022-07-20 06:32:31,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502379010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:31,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:31,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165512913] [2022-07-20 06:32:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:31,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:31,440 INFO L87 Difference]: Start difference. First operand 427 states and 546 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-07-20 06:32:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:31,676 INFO L93 Difference]: Finished difference Result 451 states and 572 transitions. [2022-07-20 06:32:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 06:32:31,676 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), 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 49 [2022-07-20 06:32:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:31,678 INFO L225 Difference]: With dead ends: 451 [2022-07-20 06:32:31,679 INFO L226 Difference]: Without dead ends: 435 [2022-07-20 06:32:31,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:31,679 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 53 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:31,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1782 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-20 06:32:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 423. [2022-07-20 06:32:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.2553191489361701) internal successors, (472), 381 states have internal predecessors, (472), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2022-07-20 06:32:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions. [2022-07-20 06:32:31,688 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 49 [2022-07-20 06:32:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:31,689 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 540 transitions. [2022-07-20 06:32:31,689 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), 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) [2022-07-20 06:32:31,689 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions. [2022-07-20 06:32:31,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-20 06:32:31,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:31,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:31,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-20 06:32:31,691 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:31,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2007550124, now seen corresponding path program 1 times [2022-07-20 06:32:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:31,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625220046] [2022-07-20 06:32:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:31,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 06:32:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:31,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625220046] [2022-07-20 06:32:31,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625220046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:31,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:31,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 06:32:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245371368] [2022-07-20 06:32:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:31,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 06:32:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 06:32:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:31,768 INFO L87 Difference]: Start difference. First operand 423 states and 540 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:31,963 INFO L93 Difference]: Finished difference Result 567 states and 740 transitions. [2022-07-20 06:32:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 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 51 [2022-07-20 06:32:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:31,966 INFO L225 Difference]: With dead ends: 567 [2022-07-20 06:32:31,966 INFO L226 Difference]: Without dead ends: 567 [2022-07-20 06:32:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:31,967 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 104 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:31,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1811 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-20 06:32:31,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 423. [2022-07-20 06:32:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.252659574468085) internal successors, (471), 381 states have internal predecessors, (471), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2022-07-20 06:32:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2022-07-20 06:32:31,977 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 51 [2022-07-20 06:32:31,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:31,977 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2022-07-20 06:32:31,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:31,977 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2022-07-20 06:32:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 06:32:31,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:31,978 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] [2022-07-20 06:32:31,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-20 06:32:31,979 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash 568629575, now seen corresponding path program 1 times [2022-07-20 06:32:31,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:31,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833736783] [2022-07-20 06:32:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:31,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-20 06:32:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:32,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833736783] [2022-07-20 06:32:32,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833736783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:32,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:32,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747825260] [2022-07-20 06:32:32,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:32,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:32,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:32,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:32,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:32,067 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-07-20 06:32:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:32,298 INFO L93 Difference]: Finished difference Result 447 states and 565 transitions. [2022-07-20 06:32:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 06:32:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 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 53 [2022-07-20 06:32:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:32,300 INFO L225 Difference]: With dead ends: 447 [2022-07-20 06:32:32,300 INFO L226 Difference]: Without dead ends: 413 [2022-07-20 06:32:32,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:32,301 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 61 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:32,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1786 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-20 06:32:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2022-07-20 06:32:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 357 states have (on average 1.2521008403361344) internal successors, (447), 362 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (36), 24 states have call predecessors, (36), 23 states have call successors, (36) [2022-07-20 06:32:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 511 transitions. [2022-07-20 06:32:32,308 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 511 transitions. Word has length 53 [2022-07-20 06:32:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:32,308 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 511 transitions. [2022-07-20 06:32:32,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-07-20 06:32:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 511 transitions. [2022-07-20 06:32:32,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-20 06:32:32,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:32,309 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] [2022-07-20 06:32:32,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-20 06:32:32,309 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:32,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1451850282, now seen corresponding path program 1 times [2022-07-20 06:32:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:32,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723758249] [2022-07-20 06:32:32,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:32,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-20 06:32:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:32,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:32,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723758249] [2022-07-20 06:32:32,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723758249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:32,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:32,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 06:32:32,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640678457] [2022-07-20 06:32:32,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:32,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 06:32:32,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:32,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 06:32:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:32,378 INFO L87 Difference]: Start difference. First operand 401 states and 511 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:32:32,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:32,580 INFO L93 Difference]: Finished difference Result 388 states and 485 transitions. [2022-07-20 06:32:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:32,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2022-07-20 06:32:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:32,582 INFO L225 Difference]: With dead ends: 388 [2022-07-20 06:32:32,583 INFO L226 Difference]: Without dead ends: 388 [2022-07-20 06:32:32,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:32,583 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 132 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:32,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1188 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-20 06:32:32,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 368. [2022-07-20 06:32:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 329 states have (on average 1.2522796352583587) internal successors, (412), 333 states have internal predecessors, (412), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-20 06:32:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 461 transitions. [2022-07-20 06:32:32,590 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 461 transitions. Word has length 59 [2022-07-20 06:32:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:32,591 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 461 transitions. [2022-07-20 06:32:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:32:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 461 transitions. [2022-07-20 06:32:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-20 06:32:32,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:32,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:32,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-20 06:32:32,593 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2062141299, now seen corresponding path program 1 times [2022-07-20 06:32:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:32,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719406243] [2022-07-20 06:32:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 06:32:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 06:32:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:32,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:32,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719406243] [2022-07-20 06:32:32,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719406243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:32,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:32,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013604864] [2022-07-20 06:32:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:32,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:32,663 INFO L87 Difference]: Start difference. First operand 368 states and 461 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-07-20 06:32:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:33,027 INFO L93 Difference]: Finished difference Result 493 states and 599 transitions. [2022-07-20 06:32:33,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 06:32:33,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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 61 [2022-07-20 06:32:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:33,029 INFO L225 Difference]: With dead ends: 493 [2022-07-20 06:32:33,029 INFO L226 Difference]: Without dead ends: 493 [2022-07-20 06:32:33,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-07-20 06:32:33,030 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 393 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:33,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1192 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 06:32:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-07-20 06:32:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 462. [2022-07-20 06:32:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.2397094430992737) internal successors, (512), 419 states have internal predecessors, (512), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-20 06:32:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 566 transitions. [2022-07-20 06:32:33,044 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 566 transitions. Word has length 61 [2022-07-20 06:32:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 566 transitions. [2022-07-20 06:32:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-07-20 06:32:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 566 transitions. [2022-07-20 06:32:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-20 06:32:33,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:33,046 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] [2022-07-20 06:32:33,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-20 06:32:33,046 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:33,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash 481973530, now seen corresponding path program 1 times [2022-07-20 06:32:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:33,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325214525] [2022-07-20 06:32:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 06:32:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 06:32:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:33,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:33,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325214525] [2022-07-20 06:32:33,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325214525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:33,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:33,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 06:32:33,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287070582] [2022-07-20 06:32:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:33,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 06:32:33,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:33,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 06:32:33,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:33,139 INFO L87 Difference]: Start difference. First operand 462 states and 566 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-07-20 06:32:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:33,414 INFO L93 Difference]: Finished difference Result 461 states and 564 transitions. [2022-07-20 06:32:33,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 06:32:33,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 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 62 [2022-07-20 06:32:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:33,416 INFO L225 Difference]: With dead ends: 461 [2022-07-20 06:32:33,416 INFO L226 Difference]: Without dead ends: 413 [2022-07-20 06:32:33,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-20 06:32:33,417 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 103 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:33,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1613 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-20 06:32:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-07-20 06:32:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2439024390243902) internal successors, (459), 374 states have internal predecessors, (459), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2022-07-20 06:32:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 508 transitions. [2022-07-20 06:32:33,424 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 508 transitions. Word has length 62 [2022-07-20 06:32:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:33,424 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 508 transitions. [2022-07-20 06:32:33,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-07-20 06:32:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 508 transitions. [2022-07-20 06:32:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 06:32:33,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:33,425 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] [2022-07-20 06:32:33,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-20 06:32:33,426 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:33,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1711382279, now seen corresponding path program 1 times [2022-07-20 06:32:33,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:33,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098567147] [2022-07-20 06:32:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:33,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-20 06:32:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:33,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:33,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098567147] [2022-07-20 06:32:33,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098567147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:33,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:33,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 06:32:33,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565483330] [2022-07-20 06:32:33,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:33,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 06:32:33,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 06:32:33,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:33,519 INFO L87 Difference]: Start difference. First operand 413 states and 508 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-07-20 06:32:33,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:33,767 INFO L93 Difference]: Finished difference Result 451 states and 550 transitions. [2022-07-20 06:32:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 06:32:33,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 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 63 [2022-07-20 06:32:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:33,769 INFO L225 Difference]: With dead ends: 451 [2022-07-20 06:32:33,769 INFO L226 Difference]: Without dead ends: 435 [2022-07-20 06:32:33,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-07-20 06:32:33,770 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 342 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:33,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1370 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-20 06:32:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 421. [2022-07-20 06:32:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 376 states have (on average 1.2393617021276595) internal successors, (466), 381 states have internal predecessors, (466), 24 states have call successors, (24), 18 states have call predecessors, (24), 20 states have return successors, (27), 22 states have call predecessors, (27), 21 states have call successors, (27) [2022-07-20 06:32:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 517 transitions. [2022-07-20 06:32:33,778 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 517 transitions. Word has length 63 [2022-07-20 06:32:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:33,778 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 517 transitions. [2022-07-20 06:32:33,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-07-20 06:32:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 517 transitions. [2022-07-20 06:32:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-20 06:32:33,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:33,779 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] [2022-07-20 06:32:33,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-20 06:32:33,780 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1980841952, now seen corresponding path program 1 times [2022-07-20 06:32:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:33,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165082251] [2022-07-20 06:32:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:33,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-20 06:32:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-20 06:32:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:33,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:32:33,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165082251] [2022-07-20 06:32:33,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165082251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:33,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:33,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 06:32:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820201966] [2022-07-20 06:32:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:33,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 06:32:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:32:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 06:32:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:33,866 INFO L87 Difference]: Start difference. First operand 421 states and 517 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-07-20 06:32:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:34,122 INFO L93 Difference]: Finished difference Result 451 states and 549 transitions. [2022-07-20 06:32:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 06:32:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 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 64 [2022-07-20 06:32:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:34,124 INFO L225 Difference]: With dead ends: 451 [2022-07-20 06:32:34,124 INFO L226 Difference]: Without dead ends: 435 [2022-07-20 06:32:34,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-20 06:32:34,125 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 62 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:34,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1888 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-20 06:32:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 413. [2022-07-20 06:32:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2411924119241193) internal successors, (458), 374 states have internal predecessors, (458), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2022-07-20 06:32:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2022-07-20 06:32:34,146 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 64 [2022-07-20 06:32:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:34,146 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2022-07-20 06:32:34,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-07-20 06:32:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2022-07-20 06:32:34,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-20 06:32:34,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:34,149 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] [2022-07-20 06:32:34,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-20 06:32:34,150 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1972927547, now seen corresponding path program 1 times [2022-07-20 06:32:34,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:32:34,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670699778] [2022-07-20 06:32:34,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:34,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:32:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 06:32:34,181 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 06:32:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 06:32:34,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 06:32:34,241 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 06:32:34,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-20 06:32:34,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-20 06:32:34,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-20 06:32:34,251 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] [2022-07-20 06:32:34,255 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 06:32:34,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:32:34 BoogieIcfgContainer [2022-07-20 06:32:34,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 06:32:34,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 06:32:34,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 06:32:34,366 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 06:32:34,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:23" (3/4) ... [2022-07-20 06:32:34,370 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-20 06:32:34,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 06:32:34,371 INFO L158 Benchmark]: Toolchain (without parser) took 12030.78ms. Allocated memory was 86.0MB in the beginning and 226.5MB in the end (delta: 140.5MB). Free memory was 49.9MB in the beginning and 170.7MB in the end (delta: -120.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,371 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 55.6MB in the beginning and 55.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:32:34,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.87ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 69.9MB in the end (delta: -20.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.53ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 65.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,372 INFO L158 Benchmark]: Boogie Preprocessor took 47.65ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 61.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,372 INFO L158 Benchmark]: RCFGBuilder took 1046.40ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 61.9MB in the beginning and 100.6MB in the end (delta: -38.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,372 INFO L158 Benchmark]: TraceAbstraction took 10392.97ms. Allocated memory was 127.9MB in the beginning and 226.5MB in the end (delta: 98.6MB). Free memory was 100.6MB in the beginning and 171.8MB in the end (delta: -71.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-07-20 06:32:34,372 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 226.5MB. Free memory is still 170.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:32:34,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 55.6MB in the beginning and 55.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.87ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 69.9MB in the end (delta: -20.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.53ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 65.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.65ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 61.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.40ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 61.9MB in the beginning and 100.6MB in the end (delta: -38.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10392.97ms. Allocated memory was 127.9MB in the beginning and 226.5MB in the end (delta: 98.6MB). Free memory was 100.6MB in the beginning and 171.8MB in the end (delta: -71.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 226.5MB. Free memory is still 170.7MB. There was no memory consumed. 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 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L708] CALL _BLAST_init() [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L160] return (259); VAL [\old(DisketteExtension)=0, \old(Irp)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(DeviceObject)=-1, \old(Irp)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 239 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6988 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6857 mSDsluCounter, 40329 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29013 mSDsCounter, 1082 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7767 IncrementalHoareTripleChecker+Invalid, 8849 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1082 mSolverCounterUnsat, 11316 mSDtfsCounter, 7767 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=13, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 37 MinimizatonAttempts, 1015 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1543 NumberOfCodeBlocks, 1543 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 3749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 37 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-20 06:32:34,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/floppy_simpl3.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 06:32:36,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 06:32:36,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 06:32:36,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 06:32:36,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 06:32:36,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 06:32:36,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 06:32:36,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 06:32:36,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 06:32:36,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 06:32:36,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 06:32:36,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 06:32:36,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 06:32:36,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 06:32:36,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 06:32:36,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 06:32:36,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 06:32:36,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 06:32:36,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 06:32:36,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 06:32:36,661 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 06:32:36,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 06:32:36,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 06:32:36,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 06:32:36,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 06:32:36,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 06:32:36,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 06:32:36,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 06:32:36,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 06:32:36,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 06:32:36,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 06:32:36,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 06:32:36,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 06:32:36,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 06:32:36,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 06:32:36,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 06:32:36,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 06:32:36,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 06:32:36,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 06:32:36,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 06:32:36,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 06:32:36,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 06:32:36,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-20 06:32:36,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 06:32:36,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 06:32:36,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 06:32:36,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 06:32:36,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 06:32:36,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 06:32:36,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 06:32:36,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 06:32:36,744 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 06:32:36,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 06:32:36,745 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 06:32:36,746 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 06:32:36,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 06:32:36,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 06:32:36,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 06:32:36,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 06:32:36,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:32:36,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 06:32:36,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 06:32:36,749 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 06:32:36,749 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 06:32:36,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 06:32:36,749 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2022-07-20 06:32:37,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 06:32:37,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 06:32:37,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 06:32:37,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 06:32:37,128 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 06:32:37,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-20 06:32:37,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06964e2b/7e9884c11c3240a29764c76e392bd3fa/FLAGb01c2d6d1 [2022-07-20 06:32:37,786 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 06:32:37,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2022-07-20 06:32:37,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06964e2b/7e9884c11c3240a29764c76e392bd3fa/FLAGb01c2d6d1 [2022-07-20 06:32:38,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06964e2b/7e9884c11c3240a29764c76e392bd3fa [2022-07-20 06:32:38,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 06:32:38,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 06:32:38,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 06:32:38,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 06:32:38,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 06:32:38,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ef3c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38, skipping insertion in model container [2022-07-20 06:32:38,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 06:32:38,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 06:32:38,350 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/floppy_simpl3.cil-1.c[2713,2726] [2022-07-20 06:32:38,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:32:38,521 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 06:32:38,548 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/floppy_simpl3.cil-1.c[2713,2726] [2022-07-20 06:32:38,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:32:38,646 INFO L208 MainTranslator]: Completed translation [2022-07-20 06:32:38,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38 WrapperNode [2022-07-20 06:32:38,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 06:32:38,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 06:32:38,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 06:32:38,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 06:32:38,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,753 INFO L137 Inliner]: procedures = 37, calls = 62, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 833 [2022-07-20 06:32:38,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 06:32:38,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 06:32:38,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 06:32:38,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 06:32:38,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 06:32:38,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 06:32:38,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 06:32:38,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 06:32:38,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (1/1) ... [2022-07-20 06:32:38,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:32:38,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 06:32:38,889 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) [2022-07-20 06:32:38,909 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 [2022-07-20 06:32:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 06:32:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-20 06:32:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-20 06:32:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 06:32:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-20 06:32:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-20 06:32:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-20 06:32:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-20 06:32:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-20 06:32:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-20 06:32:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-20 06:32:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-20 06:32:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 06:32:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 06:32:39,125 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 06:32:39,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 06:32:39,135 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,210 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-20 06:32:39,210 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-20 06:32:39,211 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,244 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-20 06:32:39,244 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-20 06:32:39,263 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,265 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,269 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,280 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,284 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,286 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,291 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,291 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,307 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,713 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2022-07-20 06:32:39,713 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2022-07-20 06:32:39,713 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume !false; [2022-07-20 06:32:39,713 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume false; [2022-07-20 06:32:39,713 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2022-07-20 06:32:39,714 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2022-07-20 06:32:39,714 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-07-20 06:32:39,714 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-07-20 06:32:39,714 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false; [2022-07-20 06:32:39,714 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2022-07-20 06:32:39,715 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2022-07-20 06:32:39,716 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##122: assume false; [2022-07-20 06:32:39,716 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume !false; [2022-07-20 06:32:39,719 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-20 06:32:39,761 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-20 06:32:39,762 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-20 06:32:39,767 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 06:32:39,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 06:32:39,776 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 06:32:39,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:39 BoogieIcfgContainer [2022-07-20 06:32:39,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 06:32:39,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 06:32:39,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 06:32:39,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 06:32:39,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:32:38" (1/3) ... [2022-07-20 06:32:39,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6426eba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:32:39, skipping insertion in model container [2022-07-20 06:32:39,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:38" (2/3) ... [2022-07-20 06:32:39,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6426eba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:32:39, skipping insertion in model container [2022-07-20 06:32:39,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:39" (3/3) ... [2022-07-20 06:32:39,786 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2022-07-20 06:32:39,800 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 06:32:39,800 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-20 06:32:39,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 06:32:39,853 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@4f66159d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d409515 [2022-07-20 06:32:39,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-20 06:32:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-20 06:32:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-20 06:32:39,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:39,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:39,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:39,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -379437559, now seen corresponding path program 1 times [2022-07-20 06:32:39,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:39,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986644991] [2022-07-20 06:32:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:39,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:39,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:39,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:39,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 06:32:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:40,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:40,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:40,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:40,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:40,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986644991] [2022-07-20 06:32:40,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986644991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:40,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:40,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:40,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107152375] [2022-07-20 06:32:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:40,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:40,169 INFO L87 Difference]: Start difference. First operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) 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) [2022-07-20 06:32:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:40,281 INFO L93 Difference]: Finished difference Result 237 states and 338 transitions. [2022-07-20 06:32:40,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:40,284 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 [2022-07-20 06:32:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:40,299 INFO L225 Difference]: With dead ends: 237 [2022-07-20 06:32:40,299 INFO L226 Difference]: Without dead ends: 235 [2022-07-20 06:32:40,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:40,304 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 194 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:40,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 449 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-07-20 06:32:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2022-07-20 06:32:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.4607329842931938) internal successors, (279), 212 states have internal predecessors, (279), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-20 06:32:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 336 transitions. [2022-07-20 06:32:40,362 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 336 transitions. Word has length 8 [2022-07-20 06:32:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:40,365 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 336 transitions. [2022-07-20 06:32:40,365 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) [2022-07-20 06:32:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 336 transitions. [2022-07-20 06:32:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-20 06:32:40,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:40,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:40,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:40,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:40,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash 229440231, now seen corresponding path program 1 times [2022-07-20 06:32:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:40,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393003025] [2022-07-20 06:32:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:40,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:40,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:40,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:40,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 06:32:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:40,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:40,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:40,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:40,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:40,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393003025] [2022-07-20 06:32:40,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393003025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:40,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:40,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 06:32:40,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814245170] [2022-07-20 06:32:40,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:40,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:40,741 INFO L87 Difference]: Start difference. First operand 235 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:40,817 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2022-07-20 06:32:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:40,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-07-20 06:32:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:40,820 INFO L225 Difference]: With dead ends: 234 [2022-07-20 06:32:40,820 INFO L226 Difference]: Without dead ends: 231 [2022-07-20 06:32:40,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:40,821 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 214 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:40,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 393 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-20 06:32:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-07-20 06:32:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.425531914893617) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-20 06:32:40,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2022-07-20 06:32:40,839 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 11 [2022-07-20 06:32:40,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:40,840 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2022-07-20 06:32:40,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2022-07-20 06:32:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 06:32:40,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:40,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:40,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:41,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:41,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:41,051 INFO L85 PathProgramCache]: Analyzing trace with hash 24656821, now seen corresponding path program 1 times [2022-07-20 06:32:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502741089] [2022-07-20 06:32:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:41,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:41,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:41,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:41,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 06:32:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:41,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 06:32:41,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:41,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:41,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502741089] [2022-07-20 06:32:41,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502741089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:41,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:41,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:41,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895476189] [2022-07-20 06:32:41,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:41,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:41,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:41,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:41,284 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-07-20 06:32:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:41,531 INFO L93 Difference]: Finished difference Result 348 states and 488 transitions. [2022-07-20 06:32:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:41,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2022-07-20 06:32:41,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:41,534 INFO L225 Difference]: With dead ends: 348 [2022-07-20 06:32:41,535 INFO L226 Difference]: Without dead ends: 347 [2022-07-20 06:32:41,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:41,536 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 468 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:41,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 543 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:41,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-20 06:32:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 328. [2022-07-20 06:32:41,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.3652482269503545) internal successors, (385), 287 states have internal predecessors, (385), 38 states have call successors, (38), 9 states have call predecessors, (38), 7 states have return successors, (40), 32 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-20 06:32:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 463 transitions. [2022-07-20 06:32:41,558 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 463 transitions. Word has length 18 [2022-07-20 06:32:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:41,558 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 463 transitions. [2022-07-20 06:32:41,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-07-20 06:32:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 463 transitions. [2022-07-20 06:32:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-20 06:32:41,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:41,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:41,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:41,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:41,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:41,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1035240063, now seen corresponding path program 1 times [2022-07-20 06:32:41,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373991796] [2022-07-20 06:32:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:41,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:41,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:41,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 06:32:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:41,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:41,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:41,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:41,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:41,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373991796] [2022-07-20 06:32:41,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373991796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:41,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:41,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:41,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000672896] [2022-07-20 06:32:41,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:41,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:41,922 INFO L87 Difference]: Start difference. First operand 328 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-20 06:32:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:41,954 INFO L93 Difference]: Finished difference Result 516 states and 723 transitions. [2022-07-20 06:32:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2022-07-20 06:32:41,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:41,961 INFO L225 Difference]: With dead ends: 516 [2022-07-20 06:32:41,962 INFO L226 Difference]: Without dead ends: 516 [2022-07-20 06:32:41,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:41,969 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 276 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:41,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-07-20 06:32:42,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2022-07-20 06:32:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 424 states have (on average 1.3632075471698113) internal successors, (578), 426 states have internal predecessors, (578), 48 states have call successors, (48), 17 states have call predecessors, (48), 14 states have return successors, (61), 44 states have call predecessors, (61), 39 states have call successors, (61) [2022-07-20 06:32:42,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 687 transitions. [2022-07-20 06:32:42,022 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 687 transitions. Word has length 19 [2022-07-20 06:32:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:42,022 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 687 transitions. [2022-07-20 06:32:42,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-20 06:32:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 687 transitions. [2022-07-20 06:32:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 06:32:42,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:42,024 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] [2022-07-20 06:32:42,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:42,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1224032757, now seen corresponding path program 1 times [2022-07-20 06:32:42,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:42,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955587201] [2022-07-20 06:32:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:42,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:42,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:42,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:42,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 06:32:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:42,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:42,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:42,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:42,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:42,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955587201] [2022-07-20 06:32:42,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955587201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:42,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:42,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:42,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575857538] [2022-07-20 06:32:42,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:42,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:42,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:42,368 INFO L87 Difference]: Start difference. First operand 487 states and 687 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-07-20 06:32:42,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:42,398 INFO L93 Difference]: Finished difference Result 558 states and 775 transitions. [2022-07-20 06:32:42,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:42,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2022-07-20 06:32:42,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:42,404 INFO L225 Difference]: With dead ends: 558 [2022-07-20 06:32:42,404 INFO L226 Difference]: Without dead ends: 558 [2022-07-20 06:32:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:42,405 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 389 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 [2022-07-20 06:32:42,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-20 06:32:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 531. [2022-07-20 06:32:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 462 states have (on average 1.3636363636363635) internal successors, (630), 470 states have internal predecessors, (630), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 745 transitions. [2022-07-20 06:32:42,425 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 745 transitions. Word has length 22 [2022-07-20 06:32:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:42,425 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 745 transitions. [2022-07-20 06:32:42,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-07-20 06:32:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 745 transitions. [2022-07-20 06:32:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-20 06:32:42,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:42,432 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] [2022-07-20 06:32:42,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:42,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:42,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:42,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash 664756023, now seen corresponding path program 1 times [2022-07-20 06:32:42,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:42,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514519609] [2022-07-20 06:32:42,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:42,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:42,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:42,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:42,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 06:32:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:42,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:42,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:42,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:42,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:42,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514519609] [2022-07-20 06:32:42,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514519609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:42,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:42,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:42,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888204147] [2022-07-20 06:32:42,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:42,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:42,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:42,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:42,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:42,774 INFO L87 Difference]: Start difference. First operand 531 states and 745 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:42,804 INFO L93 Difference]: Finished difference Result 552 states and 772 transitions. [2022-07-20 06:32:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 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 27 [2022-07-20 06:32:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:42,808 INFO L225 Difference]: With dead ends: 552 [2022-07-20 06:32:42,808 INFO L226 Difference]: Without dead ends: 552 [2022-07-20 06:32:42,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:42,809 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 43 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:42,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 927 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-07-20 06:32:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 533. [2022-07-20 06:32:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 464 states have (on average 1.3620689655172413) internal successors, (632), 472 states have internal predecessors, (632), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 747 transitions. [2022-07-20 06:32:42,840 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 747 transitions. Word has length 27 [2022-07-20 06:32:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:42,841 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 747 transitions. [2022-07-20 06:32:42,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:32:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 747 transitions. [2022-07-20 06:32:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-20 06:32:42,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:42,843 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] [2022-07-20 06:32:42,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:43,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:43,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:43,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash -647747679, now seen corresponding path program 1 times [2022-07-20 06:32:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:43,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110008891] [2022-07-20 06:32:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:43,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:43,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:43,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 06:32:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:43,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:43,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:43,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:43,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:43,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110008891] [2022-07-20 06:32:43,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110008891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:43,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:43,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:43,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444435501] [2022-07-20 06:32:43,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:43,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:43,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:43,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:43,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:43,194 INFO L87 Difference]: Start difference. First operand 533 states and 747 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-20 06:32:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:43,266 INFO L93 Difference]: Finished difference Result 564 states and 786 transitions. [2022-07-20 06:32:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-07-20 06:32:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:43,270 INFO L225 Difference]: With dead ends: 564 [2022-07-20 06:32:43,270 INFO L226 Difference]: Without dead ends: 564 [2022-07-20 06:32:43,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:43,271 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 24 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:43,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 546 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-07-20 06:32:43,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2022-07-20 06:32:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 491 states have (on average 1.3604887983706722) internal successors, (668), 498 states have internal predecessors, (668), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 783 transitions. [2022-07-20 06:32:43,288 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 783 transitions. Word has length 29 [2022-07-20 06:32:43,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:43,288 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 783 transitions. [2022-07-20 06:32:43,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-07-20 06:32:43,289 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 783 transitions. [2022-07-20 06:32:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 06:32:43,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:43,289 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] [2022-07-20 06:32:43,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:43,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:43,499 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1847797176, now seen corresponding path program 1 times [2022-07-20 06:32:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:43,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538190584] [2022-07-20 06:32:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:43,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:43,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:43,501 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:43,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 06:32:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:43,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:43,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:43,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:43,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:43,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538190584] [2022-07-20 06:32:43,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538190584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:43,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:43,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:43,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729153910] [2022-07-20 06:32:43,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:43,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:43,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:43,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:43,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:43,741 INFO L87 Difference]: Start difference. First operand 560 states and 783 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-07-20 06:32:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:43,928 INFO L93 Difference]: Finished difference Result 564 states and 784 transitions. [2022-07-20 06:32:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:43,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2022-07-20 06:32:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:43,932 INFO L225 Difference]: With dead ends: 564 [2022-07-20 06:32:43,932 INFO L226 Difference]: Without dead ends: 564 [2022-07-20 06:32:43,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:43,933 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 357 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:43,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 502 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-07-20 06:32:43,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2022-07-20 06:32:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 491 states have (on average 1.3564154786150713) internal successors, (666), 498 states have internal predecessors, (666), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 781 transitions. [2022-07-20 06:32:43,949 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 781 transitions. Word has length 30 [2022-07-20 06:32:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:43,949 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 781 transitions. [2022-07-20 06:32:43,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-07-20 06:32:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 781 transitions. [2022-07-20 06:32:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 06:32:43,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:43,950 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] [2022-07-20 06:32:43,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:44,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:44,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1158944726, now seen corresponding path program 1 times [2022-07-20 06:32:44,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:44,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757081448] [2022-07-20 06:32:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:44,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:44,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:44,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:44,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 06:32:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:44,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 06:32:44,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:44,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:44,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757081448] [2022-07-20 06:32:44,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757081448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:44,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:44,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:44,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752768948] [2022-07-20 06:32:44,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:44,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:44,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:44,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:44,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:44,325 INFO L87 Difference]: Start difference. First operand 560 states and 781 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-07-20 06:32:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:44,486 INFO L93 Difference]: Finished difference Result 572 states and 797 transitions. [2022-07-20 06:32:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:44,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 30 [2022-07-20 06:32:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:44,489 INFO L225 Difference]: With dead ends: 572 [2022-07-20 06:32:44,489 INFO L226 Difference]: Without dead ends: 572 [2022-07-20 06:32:44,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:44,490 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 301 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:44,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 506 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-20 06:32:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2022-07-20 06:32:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 502 states have (on average 1.3545816733067728) internal successors, (680), 508 states have internal predecessors, (680), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:44,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 795 transitions. [2022-07-20 06:32:44,519 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 795 transitions. Word has length 30 [2022-07-20 06:32:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:44,520 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 795 transitions. [2022-07-20 06:32:44,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-07-20 06:32:44,520 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 795 transitions. [2022-07-20 06:32:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 06:32:44,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:44,521 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] [2022-07-20 06:32:44,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:44,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:44,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:44,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash -883889712, now seen corresponding path program 1 times [2022-07-20 06:32:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:44,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705135488] [2022-07-20 06:32:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:44,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:44,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:44,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:44,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 06:32:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:44,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 06:32:44,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:44,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:44,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:44,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705135488] [2022-07-20 06:32:44,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705135488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:44,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:44,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797490046] [2022-07-20 06:32:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:44,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:44,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:44,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:44,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:44,996 INFO L87 Difference]: Start difference. First operand 571 states and 795 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-07-20 06:32:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:45,247 INFO L93 Difference]: Finished difference Result 613 states and 840 transitions. [2022-07-20 06:32:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 30 [2022-07-20 06:32:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:45,251 INFO L225 Difference]: With dead ends: 613 [2022-07-20 06:32:45,251 INFO L226 Difference]: Without dead ends: 613 [2022-07-20 06:32:45,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:45,252 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 518 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:45,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 527 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-07-20 06:32:45,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 568. [2022-07-20 06:32:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 499 states have (on average 1.3386773547094188) internal successors, (668), 505 states have internal predecessors, (668), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 783 transitions. [2022-07-20 06:32:45,274 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 783 transitions. Word has length 30 [2022-07-20 06:32:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:45,276 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 783 transitions. [2022-07-20 06:32:45,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-07-20 06:32:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 783 transitions. [2022-07-20 06:32:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-20 06:32:45,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:45,277 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] [2022-07-20 06:32:45,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:45,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:45,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash 558422765, now seen corresponding path program 1 times [2022-07-20 06:32:45,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:45,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948669407] [2022-07-20 06:32:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:45,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:45,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:45,490 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:45,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 06:32:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:45,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:45,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:45,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:45,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:45,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948669407] [2022-07-20 06:32:45,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948669407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:45,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:45,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:45,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761689007] [2022-07-20 06:32:45,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:45,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:45,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:45,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:45,707 INFO L87 Difference]: Start difference. First operand 568 states and 783 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-20 06:32:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:45,906 INFO L93 Difference]: Finished difference Result 572 states and 784 transitions. [2022-07-20 06:32:45,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2022-07-20 06:32:45,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:45,910 INFO L225 Difference]: With dead ends: 572 [2022-07-20 06:32:45,910 INFO L226 Difference]: Without dead ends: 572 [2022-07-20 06:32:45,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:45,911 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 309 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:45,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 713 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-20 06:32:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 568. [2022-07-20 06:32:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 499 states have (on average 1.3346693386773547) internal successors, (666), 505 states have internal predecessors, (666), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2022-07-20 06:32:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 781 transitions. [2022-07-20 06:32:45,928 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 781 transitions. Word has length 31 [2022-07-20 06:32:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:45,929 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 781 transitions. [2022-07-20 06:32:45,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-07-20 06:32:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 781 transitions. [2022-07-20 06:32:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-20 06:32:45,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:45,931 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] [2022-07-20 06:32:45,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:46,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,141 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:46,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:46,141 INFO L85 PathProgramCache]: Analyzing trace with hash 186689025, now seen corresponding path program 1 times [2022-07-20 06:32:46,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:46,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777662956] [2022-07-20 06:32:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:46,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:46,143 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:46,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 06:32:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:46,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 06:32:46,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:46,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:46,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:46,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777662956] [2022-07-20 06:32:46,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777662956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:46,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:46,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:46,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906526694] [2022-07-20 06:32:46,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:46,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:46,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:46,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:46,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:46,277 INFO L87 Difference]: Start difference. First operand 568 states and 781 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-20 06:32:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:46,305 INFO L93 Difference]: Finished difference Result 579 states and 791 transitions. [2022-07-20 06:32:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:46,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 32 [2022-07-20 06:32:46,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:46,308 INFO L225 Difference]: With dead ends: 579 [2022-07-20 06:32:46,308 INFO L226 Difference]: Without dead ends: 566 [2022-07-20 06:32:46,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:46,309 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 10 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:46,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 894 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-07-20 06:32:46,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2022-07-20 06:32:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 498 states have (on average 1.3333333333333333) internal successors, (664), 504 states have internal predecessors, (664), 49 states have call successors, (49), 21 states have call predecessors, (49), 18 states have return successors, (64), 41 states have call predecessors, (64), 41 states have call successors, (64) [2022-07-20 06:32:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 777 transitions. [2022-07-20 06:32:46,325 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 777 transitions. Word has length 32 [2022-07-20 06:32:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:46,325 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 777 transitions. [2022-07-20 06:32:46,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-20 06:32:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 777 transitions. [2022-07-20 06:32:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-20 06:32:46,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:46,326 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] [2022-07-20 06:32:46,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:46,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,536 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:46,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:46,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1105645113, now seen corresponding path program 1 times [2022-07-20 06:32:46,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:46,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384158607] [2022-07-20 06:32:46,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:46,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:46,538 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:46,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 06:32:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:46,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:46,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:46,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:46,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:46,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384158607] [2022-07-20 06:32:46,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384158607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:46,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:46,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:46,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330094382] [2022-07-20 06:32:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:46,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:46,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:46,670 INFO L87 Difference]: Start difference. First operand 566 states and 777 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-20 06:32:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:46,724 INFO L93 Difference]: Finished difference Result 574 states and 788 transitions. [2022-07-20 06:32:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:46,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 34 [2022-07-20 06:32:46,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:46,727 INFO L225 Difference]: With dead ends: 574 [2022-07-20 06:32:46,727 INFO L226 Difference]: Without dead ends: 574 [2022-07-20 06:32:46,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:46,728 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 5 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:46,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 564 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:46,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-07-20 06:32:46,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2022-07-20 06:32:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 506 states have (on average 1.3339920948616601) internal successors, (675), 512 states have internal predecessors, (675), 49 states have call successors, (49), 21 states have call predecessors, (49), 18 states have return successors, (64), 41 states have call predecessors, (64), 41 states have call successors, (64) [2022-07-20 06:32:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 788 transitions. [2022-07-20 06:32:46,742 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 788 transitions. Word has length 34 [2022-07-20 06:32:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:46,742 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 788 transitions. [2022-07-20 06:32:46,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-20 06:32:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 788 transitions. [2022-07-20 06:32:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-20 06:32:46,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:46,743 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] [2022-07-20 06:32:46,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:46,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,953 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1517933043, now seen corresponding path program 1 times [2022-07-20 06:32:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:46,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663582254] [2022-07-20 06:32:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:46,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:46,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:46,956 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:46,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 06:32:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:47,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:47,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:47,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:47,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:47,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663582254] [2022-07-20 06:32:47,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663582254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:47,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:47,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:47,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473651989] [2022-07-20 06:32:47,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:47,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:47,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:47,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:47,093 INFO L87 Difference]: Start difference. First operand 574 states and 788 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:47,112 INFO L93 Difference]: Finished difference Result 464 states and 611 transitions. [2022-07-20 06:32:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:47,113 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), 2 states have call successors, (3), 2 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 37 [2022-07-20 06:32:47,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:47,117 INFO L225 Difference]: With dead ends: 464 [2022-07-20 06:32:47,117 INFO L226 Difference]: Without dead ends: 464 [2022-07-20 06:32:47,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:47,118 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 152 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:47,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 537 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-20 06:32:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 435. [2022-07-20 06:32:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 383 states have (on average 1.3133159268929504) internal successors, (503), 391 states have internal predecessors, (503), 36 states have call successors, (36), 16 states have call predecessors, (36), 15 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2022-07-20 06:32:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 575 transitions. [2022-07-20 06:32:47,129 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 575 transitions. Word has length 37 [2022-07-20 06:32:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:47,130 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 575 transitions. [2022-07-20 06:32:47,130 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 575 transitions. [2022-07-20 06:32:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 06:32:47,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:47,131 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] [2022-07-20 06:32:47,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:47,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:47,339 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:47,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:47,340 INFO L85 PathProgramCache]: Analyzing trace with hash -688802546, now seen corresponding path program 1 times [2022-07-20 06:32:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:47,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517828280] [2022-07-20 06:32:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:47,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:47,342 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:47,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 06:32:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:47,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:47,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:47,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:47,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:47,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517828280] [2022-07-20 06:32:47,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517828280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:47,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:47,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958648307] [2022-07-20 06:32:47,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:47,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:47,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:47,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:47,479 INFO L87 Difference]: Start difference. First operand 435 states and 575 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:47,497 INFO L93 Difference]: Finished difference Result 418 states and 549 transitions. [2022-07-20 06:32:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 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 40 [2022-07-20 06:32:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:47,500 INFO L225 Difference]: With dead ends: 418 [2022-07-20 06:32:47,500 INFO L226 Difference]: Without dead ends: 418 [2022-07-20 06:32:47,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:47,501 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 39 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:47,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 888 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-07-20 06:32:47,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-07-20 06:32:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 367 states have (on average 1.3024523160762942) internal successors, (478), 374 states have internal predecessors, (478), 35 states have call successors, (35), 16 states have call predecessors, (35), 15 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2022-07-20 06:32:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 549 transitions. [2022-07-20 06:32:47,509 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 549 transitions. Word has length 40 [2022-07-20 06:32:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:47,510 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 549 transitions. [2022-07-20 06:32:47,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 549 transitions. [2022-07-20 06:32:47,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 06:32:47,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:47,511 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] [2022-07-20 06:32:47,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:47,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:47,721 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash 379915809, now seen corresponding path program 1 times [2022-07-20 06:32:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423344760] [2022-07-20 06:32:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:47,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:47,724 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:47,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 06:32:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:47,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 06:32:47,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:47,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:47,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:47,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423344760] [2022-07-20 06:32:47,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423344760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:47,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:47,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:47,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865392574] [2022-07-20 06:32:47,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:47,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:47,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:47,961 INFO L87 Difference]: Start difference. First operand 418 states and 549 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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) [2022-07-20 06:32:48,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:48,278 INFO L93 Difference]: Finished difference Result 436 states and 570 transitions. [2022-07-20 06:32:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:48,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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 [2022-07-20 06:32:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:48,281 INFO L225 Difference]: With dead ends: 436 [2022-07-20 06:32:48,281 INFO L226 Difference]: Without dead ends: 436 [2022-07-20 06:32:48,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-20 06:32:48,282 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 338 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:48,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 920 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 06:32:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-20 06:32:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 424. [2022-07-20 06:32:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.2956989247311828) internal successors, (482), 380 states have internal predecessors, (482), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-20 06:32:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 556 transitions. [2022-07-20 06:32:48,291 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 556 transitions. Word has length 40 [2022-07-20 06:32:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:48,291 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 556 transitions. [2022-07-20 06:32:48,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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) [2022-07-20 06:32:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 556 transitions. [2022-07-20 06:32:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 06:32:48,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:48,292 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] [2022-07-20 06:32:48,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-20 06:32:48,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:48,501 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:48,501 INFO L85 PathProgramCache]: Analyzing trace with hash -377925879, now seen corresponding path program 1 times [2022-07-20 06:32:48,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:48,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434516536] [2022-07-20 06:32:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:48,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:48,504 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:48,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 06:32:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:48,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:48,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:48,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:48,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:48,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434516536] [2022-07-20 06:32:48,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434516536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:48,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:48,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:48,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153939142] [2022-07-20 06:32:48,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:48,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:48,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:48,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:48,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:48,735 INFO L87 Difference]: Start difference. First operand 424 states and 556 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:48,883 INFO L93 Difference]: Finished difference Result 424 states and 555 transitions. [2022-07-20 06:32:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 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 42 [2022-07-20 06:32:48,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:48,885 INFO L225 Difference]: With dead ends: 424 [2022-07-20 06:32:48,885 INFO L226 Difference]: Without dead ends: 424 [2022-07-20 06:32:48,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:48,885 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 275 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:48,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 494 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-20 06:32:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2022-07-20 06:32:48,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.293010752688172) internal successors, (481), 380 states have internal predecessors, (481), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-20 06:32:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 555 transitions. [2022-07-20 06:32:48,894 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 555 transitions. Word has length 42 [2022-07-20 06:32:48,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:48,895 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 555 transitions. [2022-07-20 06:32:48,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 555 transitions. [2022-07-20 06:32:48,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 06:32:48,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:48,896 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] [2022-07-20 06:32:48,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:49,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:49,106 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:49,107 INFO L85 PathProgramCache]: Analyzing trace with hash -746395849, now seen corresponding path program 1 times [2022-07-20 06:32:49,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:49,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243525314] [2022-07-20 06:32:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:49,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:49,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:49,109 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:49,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 06:32:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:49,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:49,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:49,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:49,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:49,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243525314] [2022-07-20 06:32:49,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243525314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:49,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:49,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:32:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236670831] [2022-07-20 06:32:49,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:49,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:32:49,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:49,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:32:49,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:49,257 INFO L87 Difference]: Start difference. First operand 424 states and 555 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-07-20 06:32:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:49,311 INFO L93 Difference]: Finished difference Result 441 states and 573 transitions. [2022-07-20 06:32:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:49,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 41 [2022-07-20 06:32:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:49,314 INFO L225 Difference]: With dead ends: 441 [2022-07-20 06:32:49,314 INFO L226 Difference]: Without dead ends: 420 [2022-07-20 06:32:49,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:49,315 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 40 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:49,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1148 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-07-20 06:32:49,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 418. [2022-07-20 06:32:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 368 states have (on average 1.2907608695652173) internal successors, (475), 375 states have internal predecessors, (475), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-20 06:32:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 547 transitions. [2022-07-20 06:32:49,325 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 547 transitions. Word has length 41 [2022-07-20 06:32:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:49,325 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 547 transitions. [2022-07-20 06:32:49,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2022-07-20 06:32:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 547 transitions. [2022-07-20 06:32:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 06:32:49,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:49,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:49,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:49,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:49,537 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:49,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1663005190, now seen corresponding path program 1 times [2022-07-20 06:32:49,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:49,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109453360] [2022-07-20 06:32:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:49,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:49,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:49,539 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:49,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 06:32:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:49,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 06:32:49,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:49,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:49,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:49,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109453360] [2022-07-20 06:32:49,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109453360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:49,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:49,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:49,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507125547] [2022-07-20 06:32:49,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:49,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:49,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:49,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:49,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:49,776 INFO L87 Difference]: Start difference. First operand 418 states and 547 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-07-20 06:32:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:50,060 INFO L93 Difference]: Finished difference Result 419 states and 545 transitions. [2022-07-20 06:32:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 42 [2022-07-20 06:32:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:50,062 INFO L225 Difference]: With dead ends: 419 [2022-07-20 06:32:50,062 INFO L226 Difference]: Without dead ends: 419 [2022-07-20 06:32:50,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:50,063 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 322 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:50,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 911 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-20 06:32:50,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 407. [2022-07-20 06:32:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 358 states have (on average 1.2849162011173185) internal successors, (460), 365 states have internal predecessors, (460), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 531 transitions. [2022-07-20 06:32:50,071 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 531 transitions. Word has length 42 [2022-07-20 06:32:50,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:50,071 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 531 transitions. [2022-07-20 06:32:50,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-07-20 06:32:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 531 transitions. [2022-07-20 06:32:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 06:32:50,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:50,072 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] [2022-07-20 06:32:50,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:50,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:50,273 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:50,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1049211654, now seen corresponding path program 1 times [2022-07-20 06:32:50,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:50,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745438133] [2022-07-20 06:32:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:50,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:50,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:50,275 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:50,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-20 06:32:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:50,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:50,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:50,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:50,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745438133] [2022-07-20 06:32:50,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745438133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:50,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:50,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:50,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169917826] [2022-07-20 06:32:50,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:50,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:50,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:50,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:50,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:50,386 INFO L87 Difference]: Start difference. First operand 407 states and 531 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 06:32:50,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:50,434 INFO L93 Difference]: Finished difference Result 407 states and 523 transitions. [2022-07-20 06:32:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:50,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 42 [2022-07-20 06:32:50,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:50,437 INFO L225 Difference]: With dead ends: 407 [2022-07-20 06:32:50,437 INFO L226 Difference]: Without dead ends: 407 [2022-07-20 06:32:50,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:50,440 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 49 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:50,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 534 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:50,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-20 06:32:50,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2022-07-20 06:32:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 353 states have (on average 1.2691218130311614) internal successors, (448), 359 states have internal predecessors, (448), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 518 transitions. [2022-07-20 06:32:50,452 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 518 transitions. Word has length 42 [2022-07-20 06:32:50,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:50,453 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 518 transitions. [2022-07-20 06:32:50,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-07-20 06:32:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 518 transitions. [2022-07-20 06:32:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 06:32:50,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:50,454 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] [2022-07-20 06:32:50,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:50,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:50,668 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:50,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:50,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1312430958, now seen corresponding path program 1 times [2022-07-20 06:32:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:50,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071566108] [2022-07-20 06:32:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:50,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:50,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:50,670 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:50,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-20 06:32:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:50,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:50,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:50,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:50,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071566108] [2022-07-20 06:32:50,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071566108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:50,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:50,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104244290] [2022-07-20 06:32:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:50,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:50,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:50,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:50,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:50,792 INFO L87 Difference]: Start difference. First operand 401 states and 518 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:50,808 INFO L93 Difference]: Finished difference Result 419 states and 544 transitions. [2022-07-20 06:32:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 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 44 [2022-07-20 06:32:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:50,810 INFO L225 Difference]: With dead ends: 419 [2022-07-20 06:32:50,810 INFO L226 Difference]: Without dead ends: 419 [2022-07-20 06:32:50,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:50,811 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 5 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:50,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 571 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-20 06:32:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 404. [2022-07-20 06:32:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 356 states have (on average 1.2668539325842696) internal successors, (451), 362 states have internal predecessors, (451), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 521 transitions. [2022-07-20 06:32:50,822 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 521 transitions. Word has length 44 [2022-07-20 06:32:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:50,822 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 521 transitions. [2022-07-20 06:32:50,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 521 transitions. [2022-07-20 06:32:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:50,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:50,825 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] [2022-07-20 06:32:50,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-07-20 06:32:51,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:51,035 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1381038349, now seen corresponding path program 1 times [2022-07-20 06:32:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:51,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883038225] [2022-07-20 06:32:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:51,038 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:51,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-20 06:32:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:51,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:51,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:51,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:51,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:51,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883038225] [2022-07-20 06:32:51,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883038225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:51,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:51,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:51,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439150654] [2022-07-20 06:32:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:51,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:51,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:51,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:51,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:51,305 INFO L87 Difference]: Start difference. First operand 404 states and 521 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-07-20 06:32:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:51,441 INFO L93 Difference]: Finished difference Result 408 states and 523 transitions. [2022-07-20 06:32:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:51,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 43 [2022-07-20 06:32:51,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:51,446 INFO L225 Difference]: With dead ends: 408 [2022-07-20 06:32:51,446 INFO L226 Difference]: Without dead ends: 408 [2022-07-20 06:32:51,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:51,447 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 291 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:51,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 497 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-07-20 06:32:51,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2022-07-20 06:32:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 356 states have (on average 1.2640449438202248) internal successors, (450), 362 states have internal predecessors, (450), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2022-07-20 06:32:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 520 transitions. [2022-07-20 06:32:51,456 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 520 transitions. Word has length 43 [2022-07-20 06:32:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:51,457 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 520 transitions. [2022-07-20 06:32:51,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-07-20 06:32:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 520 transitions. [2022-07-20 06:32:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:51,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:51,458 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] [2022-07-20 06:32:51,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:51,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:51,669 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1380761519, now seen corresponding path program 1 times [2022-07-20 06:32:51,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:51,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117444692] [2022-07-20 06:32:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:51,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:51,671 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:51,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-20 06:32:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:51,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:51,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:51,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:51,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:51,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117444692] [2022-07-20 06:32:51,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117444692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:51,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:51,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:32:51,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711299992] [2022-07-20 06:32:51,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:51,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:32:51,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:51,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:32:51,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:51,868 INFO L87 Difference]: Start difference. First operand 404 states and 520 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-07-20 06:32:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:52,145 INFO L93 Difference]: Finished difference Result 508 states and 667 transitions. [2022-07-20 06:32:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:52,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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 43 [2022-07-20 06:32:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:52,148 INFO L225 Difference]: With dead ends: 508 [2022-07-20 06:32:52,148 INFO L226 Difference]: Without dead ends: 498 [2022-07-20 06:32:52,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-20 06:32:52,149 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 187 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:52,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1535 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-07-20 06:32:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 410. [2022-07-20 06:32:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 361 states have (on average 1.260387811634349) internal successors, (455), 368 states have internal predecessors, (455), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2022-07-20 06:32:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 530 transitions. [2022-07-20 06:32:52,158 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 530 transitions. Word has length 43 [2022-07-20 06:32:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:52,159 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 530 transitions. [2022-07-20 06:32:52,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-07-20 06:32:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 530 transitions. [2022-07-20 06:32:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 06:32:52,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:52,160 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] [2022-07-20 06:32:52,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:52,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:52,361 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1017261290, now seen corresponding path program 1 times [2022-07-20 06:32:52,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:52,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589143632] [2022-07-20 06:32:52,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:52,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:52,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:52,364 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:52,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-20 06:32:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:52,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:52,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:52,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:52,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589143632] [2022-07-20 06:32:52,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589143632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:52,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:52,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:52,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071238733] [2022-07-20 06:32:52,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:52,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:52,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:52,479 INFO L87 Difference]: Start difference. First operand 410 states and 530 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:52,504 INFO L93 Difference]: Finished difference Result 407 states and 524 transitions. [2022-07-20 06:32:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 06:32:52,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 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 43 [2022-07-20 06:32:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:52,507 INFO L225 Difference]: With dead ends: 407 [2022-07-20 06:32:52,507 INFO L226 Difference]: Without dead ends: 407 [2022-07-20 06:32:52,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:32:52,508 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 75 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:52,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 860 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-20 06:32:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 391. [2022-07-20 06:32:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 344 states have (on average 1.2616279069767442) internal successors, (434), 351 states have internal predecessors, (434), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (41), 26 states have call predecessors, (41), 26 states have call successors, (41) [2022-07-20 06:32:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 507 transitions. [2022-07-20 06:32:52,516 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 507 transitions. Word has length 43 [2022-07-20 06:32:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:52,517 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 507 transitions. [2022-07-20 06:32:52,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:52,517 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 507 transitions. [2022-07-20 06:32:52,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-20 06:32:52,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:52,518 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] [2022-07-20 06:32:52,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:52,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:52,727 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:52,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1300540979, now seen corresponding path program 1 times [2022-07-20 06:32:52,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:52,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734167015] [2022-07-20 06:32:52,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:52,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:52,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:52,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:52,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-07-20 06:32:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:52,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:32:52,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:52,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:52,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734167015] [2022-07-20 06:32:52,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734167015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:52,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:52,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:52,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792863021] [2022-07-20 06:32:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:52,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:52,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:52,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:52,851 INFO L87 Difference]: Start difference. First operand 391 states and 507 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:52,868 INFO L93 Difference]: Finished difference Result 409 states and 533 transitions. [2022-07-20 06:32:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:52,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 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 45 [2022-07-20 06:32:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:52,871 INFO L225 Difference]: With dead ends: 409 [2022-07-20 06:32:52,871 INFO L226 Difference]: Without dead ends: 409 [2022-07-20 06:32:52,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:52,872 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 5 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:52,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 588 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-07-20 06:32:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 391. [2022-07-20 06:32:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 344 states have (on average 1.2616279069767442) internal successors, (434), 351 states have internal predecessors, (434), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (41), 26 states have call predecessors, (41), 26 states have call successors, (41) [2022-07-20 06:32:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 507 transitions. [2022-07-20 06:32:52,881 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 507 transitions. Word has length 45 [2022-07-20 06:32:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:52,881 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 507 transitions. [2022-07-20 06:32:52,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 507 transitions. [2022-07-20 06:32:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-20 06:32:52,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:52,882 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] [2022-07-20 06:32:52,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:53,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:53,092 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:53,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:53,092 INFO L85 PathProgramCache]: Analyzing trace with hash 385010061, now seen corresponding path program 1 times [2022-07-20 06:32:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:53,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764826950] [2022-07-20 06:32:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:53,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:53,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:53,132 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:53,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-07-20 06:32:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:53,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 06:32:53,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:53,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:53,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:53,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764826950] [2022-07-20 06:32:53,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764826950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:53,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:53,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 06:32:53,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631499080] [2022-07-20 06:32:53,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:53,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 06:32:53,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 06:32:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:53,325 INFO L87 Difference]: Start difference. First operand 391 states and 507 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 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) [2022-07-20 06:32:53,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:53,463 INFO L93 Difference]: Finished difference Result 384 states and 494 transitions. [2022-07-20 06:32:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 06:32:53,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 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 45 [2022-07-20 06:32:53,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:53,465 INFO L225 Difference]: With dead ends: 384 [2022-07-20 06:32:53,466 INFO L226 Difference]: Without dead ends: 384 [2022-07-20 06:32:53,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 06:32:53,466 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 341 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:53,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 577 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:53,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-07-20 06:32:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2022-07-20 06:32:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 345 states have internal predecessors, (423), 32 states have call successors, (32), 14 states have call predecessors, (32), 13 states have return successors, (38), 23 states have call predecessors, (38), 26 states have call successors, (38) [2022-07-20 06:32:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 493 transitions. [2022-07-20 06:32:53,474 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 493 transitions. Word has length 45 [2022-07-20 06:32:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:53,474 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 493 transitions. [2022-07-20 06:32:53,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 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) [2022-07-20 06:32:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 493 transitions. [2022-07-20 06:32:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 06:32:53,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:53,475 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] [2022-07-20 06:32:53,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-07-20 06:32:53,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:53,685 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:53,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:53,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2052927212, now seen corresponding path program 1 times [2022-07-20 06:32:53,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:53,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891741706] [2022-07-20 06:32:53,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:53,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:53,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:53,688 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:53,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-07-20 06:32:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:53,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:53,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:53,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:53,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:53,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891741706] [2022-07-20 06:32:53,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891741706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:53,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:53,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:32:53,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230967547] [2022-07-20 06:32:53,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:53,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:32:53,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:53,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:32:53,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:53,878 INFO L87 Difference]: Start difference. First operand 382 states and 493 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2022-07-20 06:32:54,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:54,016 INFO L93 Difference]: Finished difference Result 410 states and 528 transitions. [2022-07-20 06:32:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:54,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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 [2022-07-20 06:32:54,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:54,018 INFO L225 Difference]: With dead ends: 410 [2022-07-20 06:32:54,018 INFO L226 Difference]: Without dead ends: 400 [2022-07-20 06:32:54,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:54,019 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 15 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:54,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1699 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-20 06:32:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 382. [2022-07-20 06:32:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 345 states have internal predecessors, (423), 32 states have call successors, (32), 14 states have call predecessors, (32), 13 states have return successors, (38), 23 states have call predecessors, (38), 26 states have call successors, (38) [2022-07-20 06:32:54,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 493 transitions. [2022-07-20 06:32:54,027 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 493 transitions. Word has length 44 [2022-07-20 06:32:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:54,027 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 493 transitions. [2022-07-20 06:32:54,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2022-07-20 06:32:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 493 transitions. [2022-07-20 06:32:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 06:32:54,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:54,028 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] [2022-07-20 06:32:54,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:54,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:54,229 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:54,230 INFO L85 PathProgramCache]: Analyzing trace with hash -453664980, now seen corresponding path program 1 times [2022-07-20 06:32:54,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:54,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590901999] [2022-07-20 06:32:54,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:54,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:54,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:54,231 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:54,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-07-20 06:32:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:54,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:54,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:54,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:54,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:54,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590901999] [2022-07-20 06:32:54,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590901999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:54,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:54,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:32:54,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516626431] [2022-07-20 06:32:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:54,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:32:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:32:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:32:54,429 INFO L87 Difference]: Start difference. First operand 382 states and 493 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2022-07-20 06:32:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:54,564 INFO L93 Difference]: Finished difference Result 397 states and 506 transitions. [2022-07-20 06:32:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:32:54,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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 [2022-07-20 06:32:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:54,566 INFO L225 Difference]: With dead ends: 397 [2022-07-20 06:32:54,566 INFO L226 Difference]: Without dead ends: 384 [2022-07-20 06:32:54,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-20 06:32:54,567 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 15 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:54,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1697 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-07-20 06:32:54,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 372. [2022-07-20 06:32:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 328 states have (on average 1.2591463414634145) internal successors, (413), 336 states have internal predecessors, (413), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (32), 22 states have call predecessors, (32), 25 states have call successors, (32) [2022-07-20 06:32:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 476 transitions. [2022-07-20 06:32:54,575 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 476 transitions. Word has length 44 [2022-07-20 06:32:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:54,575 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 476 transitions. [2022-07-20 06:32:54,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 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) [2022-07-20 06:32:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 476 transitions. [2022-07-20 06:32:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-20 06:32:54,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:54,577 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] [2022-07-20 06:32:54,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:54,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:54,787 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:54,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:54,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1187697777, now seen corresponding path program 1 times [2022-07-20 06:32:54,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:54,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146439479] [2022-07-20 06:32:54,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:54,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:54,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:54,789 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:54,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-07-20 06:32:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:54,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:32:54,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:54,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:54,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:54,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146439479] [2022-07-20 06:32:54,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146439479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:54,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:54,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:32:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737387385] [2022-07-20 06:32:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:54,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:32:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:54,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:32:54,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:54,938 INFO L87 Difference]: Start difference. First operand 372 states and 476 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 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) [2022-07-20 06:32:54,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:54,952 INFO L93 Difference]: Finished difference Result 447 states and 567 transitions. [2022-07-20 06:32:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:32:54,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 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 46 [2022-07-20 06:32:54,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:54,955 INFO L225 Difference]: With dead ends: 447 [2022-07-20 06:32:54,955 INFO L226 Difference]: Without dead ends: 447 [2022-07-20 06:32:54,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:32:54,956 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 121 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:54,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 562 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-20 06:32:54,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 419. [2022-07-20 06:32:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 371 states have (on average 1.2641509433962264) internal successors, (469), 377 states have internal predecessors, (469), 33 states have call successors, (33), 16 states have call predecessors, (33), 14 states have return successors, (32), 26 states have call predecessors, (32), 28 states have call successors, (32) [2022-07-20 06:32:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 534 transitions. [2022-07-20 06:32:54,964 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 534 transitions. Word has length 46 [2022-07-20 06:32:54,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:54,964 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 534 transitions. [2022-07-20 06:32:54,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 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) [2022-07-20 06:32:54,964 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 534 transitions. [2022-07-20 06:32:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 06:32:54,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:54,965 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] [2022-07-20 06:32:54,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-07-20 06:32:55,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:55,175 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:55,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:55,175 INFO L85 PathProgramCache]: Analyzing trace with hash -448653222, now seen corresponding path program 1 times [2022-07-20 06:32:55,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:55,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804972498] [2022-07-20 06:32:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:55,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:55,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:55,177 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:55,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-07-20 06:32:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:55,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 06:32:55,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:55,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:55,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:55,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804972498] [2022-07-20 06:32:55,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804972498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:55,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:55,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:55,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915309842] [2022-07-20 06:32:55,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:55,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:55,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:55,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:55,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:55,289 INFO L87 Difference]: Start difference. First operand 419 states and 534 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:55,342 INFO L93 Difference]: Finished difference Result 446 states and 565 transitions. [2022-07-20 06:32:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:55,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 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 48 [2022-07-20 06:32:55,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:55,344 INFO L225 Difference]: With dead ends: 446 [2022-07-20 06:32:55,344 INFO L226 Difference]: Without dead ends: 446 [2022-07-20 06:32:55,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:55,345 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 23 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:55,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1498 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-07-20 06:32:55,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 417. [2022-07-20 06:32:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 370 states have (on average 1.2621621621621621) internal successors, (467), 375 states have internal predecessors, (467), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (31), 26 states have call predecessors, (31), 27 states have call successors, (31) [2022-07-20 06:32:55,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 530 transitions. [2022-07-20 06:32:55,354 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 530 transitions. Word has length 48 [2022-07-20 06:32:55,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:55,354 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 530 transitions. [2022-07-20 06:32:55,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 530 transitions. [2022-07-20 06:32:55,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 06:32:55,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:55,356 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] [2022-07-20 06:32:55,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:55,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:55,565 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:55,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:55,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1621808983, now seen corresponding path program 1 times [2022-07-20 06:32:55,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:55,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345298438] [2022-07-20 06:32:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:55,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:55,568 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:55,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-07-20 06:32:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:55,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:55,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:55,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:55,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345298438] [2022-07-20 06:32:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345298438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:55,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:55,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227658493] [2022-07-20 06:32:55,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:55,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:55,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:55,775 INFO L87 Difference]: Start difference. First operand 417 states and 530 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 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) [2022-07-20 06:32:56,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:56,108 INFO L93 Difference]: Finished difference Result 526 states and 679 transitions. [2022-07-20 06:32:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 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 48 [2022-07-20 06:32:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:56,110 INFO L225 Difference]: With dead ends: 526 [2022-07-20 06:32:56,110 INFO L226 Difference]: Without dead ends: 513 [2022-07-20 06:32:56,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-20 06:32:56,111 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 320 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:56,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1863 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 06:32:56,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-20 06:32:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 423. [2022-07-20 06:32:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 1.2586666666666666) internal successors, (472), 381 states have internal predecessors, (472), 32 states have call successors, (32), 16 states have call predecessors, (32), 15 states have return successors, (35), 26 states have call predecessors, (35), 27 states have call successors, (35) [2022-07-20 06:32:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2022-07-20 06:32:56,120 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 48 [2022-07-20 06:32:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:56,120 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2022-07-20 06:32:56,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 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) [2022-07-20 06:32:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2022-07-20 06:32:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:56,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:56,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:56,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:56,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:56,331 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:56,332 INFO L85 PathProgramCache]: Analyzing trace with hash -394165188, now seen corresponding path program 1 times [2022-07-20 06:32:56,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:56,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203676443] [2022-07-20 06:32:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:56,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:56,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:56,334 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:56,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-07-20 06:32:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:56,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:56,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:56,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:56,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:56,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:56,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203676443] [2022-07-20 06:32:56,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203676443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:56,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:56,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:56,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721387115] [2022-07-20 06:32:56,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:56,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:56,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:56,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:56,529 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:56,714 INFO L93 Difference]: Finished difference Result 454 states and 577 transitions. [2022-07-20 06:32:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 49 [2022-07-20 06:32:56,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:56,716 INFO L225 Difference]: With dead ends: 454 [2022-07-20 06:32:56,716 INFO L226 Difference]: Without dead ends: 441 [2022-07-20 06:32:56,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:56,717 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 22 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:56,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2161 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-07-20 06:32:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 423. [2022-07-20 06:32:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 1.2586666666666666) internal successors, (472), 381 states have internal predecessors, (472), 32 states have call successors, (32), 16 states have call predecessors, (32), 15 states have return successors, (35), 26 states have call predecessors, (35), 27 states have call successors, (35) [2022-07-20 06:32:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2022-07-20 06:32:56,730 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 49 [2022-07-20 06:32:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2022-07-20 06:32:56,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2022-07-20 06:32:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:56,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:56,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:56,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:56,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:56,942 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:56,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1980748804, now seen corresponding path program 1 times [2022-07-20 06:32:56,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:56,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868796496] [2022-07-20 06:32:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:56,944 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:56,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-07-20 06:32:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:57,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:57,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:57,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:57,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:57,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868796496] [2022-07-20 06:32:57,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868796496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:57,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:57,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:57,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233384771] [2022-07-20 06:32:57,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:57,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:57,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:57,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:57,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:57,148 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:57,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:57,305 INFO L93 Difference]: Finished difference Result 441 states and 557 transitions. [2022-07-20 06:32:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:57,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 49 [2022-07-20 06:32:57,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:57,307 INFO L225 Difference]: With dead ends: 441 [2022-07-20 06:32:57,307 INFO L226 Difference]: Without dead ends: 425 [2022-07-20 06:32:57,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:57,308 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 22 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:57,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2159 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-07-20 06:32:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 413. [2022-07-20 06:32:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 367 states have (on average 1.2615803814713897) internal successors, (463), 372 states have internal predecessors, (463), 31 states have call successors, (31), 16 states have call predecessors, (31), 14 states have return successors, (30), 25 states have call predecessors, (30), 26 states have call successors, (30) [2022-07-20 06:32:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 524 transitions. [2022-07-20 06:32:57,314 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 524 transitions. Word has length 49 [2022-07-20 06:32:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:57,315 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 524 transitions. [2022-07-20 06:32:57,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 524 transitions. [2022-07-20 06:32:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:57,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:57,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:57,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-07-20 06:32:57,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:57,526 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:57,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:57,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2037628605, now seen corresponding path program 1 times [2022-07-20 06:32:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:57,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317228912] [2022-07-20 06:32:57,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:57,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:57,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:57,529 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:57,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-07-20 06:32:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:57,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:57,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:57,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:57,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:57,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:57,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317228912] [2022-07-20 06:32:57,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317228912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:57,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:57,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:57,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466567289] [2022-07-20 06:32:57,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:57,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:57,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:57,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:57,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:57,749 INFO L87 Difference]: Start difference. First operand 413 states and 524 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:58,064 INFO L93 Difference]: Finished difference Result 521 states and 671 transitions. [2022-07-20 06:32:58,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 49 [2022-07-20 06:32:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:58,067 INFO L225 Difference]: With dead ends: 521 [2022-07-20 06:32:58,067 INFO L226 Difference]: Without dead ends: 508 [2022-07-20 06:32:58,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-20 06:32:58,068 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 309 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:58,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1893 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 06:32:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-07-20 06:32:58,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 419. [2022-07-20 06:32:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 372 states have (on average 1.2580645161290323) internal successors, (468), 378 states have internal predecessors, (468), 31 states have call successors, (31), 16 states have call predecessors, (31), 15 states have return successors, (33), 25 states have call predecessors, (33), 26 states have call successors, (33) [2022-07-20 06:32:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 532 transitions. [2022-07-20 06:32:58,081 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 532 transitions. Word has length 49 [2022-07-20 06:32:58,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:58,081 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 532 transitions. [2022-07-20 06:32:58,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 532 transitions. [2022-07-20 06:32:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-20 06:32:58,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:58,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:32:58,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:58,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:58,283 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:58,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1318636408, now seen corresponding path program 1 times [2022-07-20 06:32:58,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:58,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877002370] [2022-07-20 06:32:58,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:58,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:58,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:58,286 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:58,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-07-20 06:32:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:58,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:58,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:58,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:58,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:58,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877002370] [2022-07-20 06:32:58,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877002370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:58,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:58,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:58,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823511554] [2022-07-20 06:32:58,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:58,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:58,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:58,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:58,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:58,492 INFO L87 Difference]: Start difference. First operand 419 states and 532 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:58,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:58,771 INFO L93 Difference]: Finished difference Result 520 states and 669 transitions. [2022-07-20 06:32:58,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:58,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 49 [2022-07-20 06:32:58,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:58,773 INFO L225 Difference]: With dead ends: 520 [2022-07-20 06:32:58,773 INFO L226 Difference]: Without dead ends: 507 [2022-07-20 06:32:58,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-20 06:32:58,774 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 315 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:58,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1602 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:32:58,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-07-20 06:32:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 419. [2022-07-20 06:32:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 372 states have (on average 1.2580645161290323) internal successors, (468), 378 states have internal predecessors, (468), 31 states have call successors, (31), 16 states have call predecessors, (31), 15 states have return successors, (32), 25 states have call predecessors, (32), 26 states have call successors, (32) [2022-07-20 06:32:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 531 transitions. [2022-07-20 06:32:58,782 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 531 transitions. Word has length 49 [2022-07-20 06:32:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:58,783 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 531 transitions. [2022-07-20 06:32:58,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-07-20 06:32:58,783 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 531 transitions. [2022-07-20 06:32:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-20 06:32:58,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:58,784 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] [2022-07-20 06:32:58,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-07-20 06:32:58,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:58,994 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:58,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2007550124, now seen corresponding path program 1 times [2022-07-20 06:32:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:58,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625140540] [2022-07-20 06:32:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:58,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:58,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:58,996 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:59,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-07-20 06:32:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:59,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 06:32:59,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:59,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:59,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:59,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625140540] [2022-07-20 06:32:59,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625140540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:59,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:59,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 06:32:59,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278708123] [2022-07-20 06:32:59,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:59,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 06:32:59,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 06:32:59,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 06:32:59,130 INFO L87 Difference]: Start difference. First operand 419 states and 531 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:59,180 INFO L93 Difference]: Finished difference Result 536 states and 696 transitions. [2022-07-20 06:32:59,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:32:59,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 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 51 [2022-07-20 06:32:59,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:59,183 INFO L225 Difference]: With dead ends: 536 [2022-07-20 06:32:59,183 INFO L226 Difference]: Without dead ends: 536 [2022-07-20 06:32:59,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:32:59,184 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 73 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:59,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1692 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:32:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-20 06:32:59,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 405. [2022-07-20 06:32:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 360 states have (on average 1.2555555555555555) internal successors, (452), 365 states have internal predecessors, (452), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (30), 25 states have call predecessors, (30), 25 states have call successors, (30) [2022-07-20 06:32:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 511 transitions. [2022-07-20 06:32:59,194 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 511 transitions. Word has length 51 [2022-07-20 06:32:59,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:59,194 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 511 transitions. [2022-07-20 06:32:59,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 06:32:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 511 transitions. [2022-07-20 06:32:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 06:32:59,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:59,196 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] [2022-07-20 06:32:59,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-07-20 06:32:59,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:32:59,408 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:32:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:32:59,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2102580610, now seen corresponding path program 1 times [2022-07-20 06:32:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:32:59,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662854658] [2022-07-20 06:32:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:32:59,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:32:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:32:59,410 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:32:59,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-07-20 06:32:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:32:59,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:32:59,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:32:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:32:59,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:32:59,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:32:59,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662854658] [2022-07-20 06:32:59,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662854658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:32:59,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:32:59,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:32:59,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421024503] [2022-07-20 06:32:59,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:32:59,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:32:59,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:32:59,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:32:59,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:32:59,601 INFO L87 Difference]: Start difference. First operand 405 states and 511 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:32:59,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:32:59,777 INFO L93 Difference]: Finished difference Result 436 states and 547 transitions. [2022-07-20 06:32:59,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:32:59,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 50 [2022-07-20 06:32:59,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:32:59,779 INFO L225 Difference]: With dead ends: 436 [2022-07-20 06:32:59,780 INFO L226 Difference]: Without dead ends: 423 [2022-07-20 06:32:59,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:32:59,781 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 22 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:32:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2088 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:32:59,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-20 06:32:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 411. [2022-07-20 06:32:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 365 states have (on average 1.252054794520548) internal successors, (457), 371 states have internal predecessors, (457), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (33), 25 states have call predecessors, (33), 25 states have call successors, (33) [2022-07-20 06:32:59,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 519 transitions. [2022-07-20 06:32:59,789 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 519 transitions. Word has length 50 [2022-07-20 06:32:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:32:59,789 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 519 transitions. [2022-07-20 06:32:59,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:32:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 519 transitions. [2022-07-20 06:32:59,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 06:32:59,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:32:59,791 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] [2022-07-20 06:32:59,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-07-20 06:33:00,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:00,000 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:00,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:00,001 INFO L85 PathProgramCache]: Analyzing trace with hash 605803070, now seen corresponding path program 1 times [2022-07-20 06:33:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:00,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616483623] [2022-07-20 06:33:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:00,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:00,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:00,002 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:00,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-07-20 06:33:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:00,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:00,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:00,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:00,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:00,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616483623] [2022-07-20 06:33:00,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616483623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:00,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:00,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:00,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393054100] [2022-07-20 06:33:00,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:00,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:00,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:00,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:00,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:00,201 INFO L87 Difference]: Start difference. First operand 411 states and 519 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:00,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:00,344 INFO L93 Difference]: Finished difference Result 429 states and 537 transitions. [2022-07-20 06:33:00,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:00,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 50 [2022-07-20 06:33:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:00,346 INFO L225 Difference]: With dead ends: 429 [2022-07-20 06:33:00,347 INFO L226 Difference]: Without dead ends: 412 [2022-07-20 06:33:00,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:00,347 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 25 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:00,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1896 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-20 06:33:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 400. [2022-07-20 06:33:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 356 states have (on average 1.2556179775280898) internal successors, (447), 361 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-20 06:33:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 504 transitions. [2022-07-20 06:33:00,354 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 504 transitions. Word has length 50 [2022-07-20 06:33:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:00,354 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 504 transitions. [2022-07-20 06:33:00,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 504 transitions. [2022-07-20 06:33:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 06:33:00,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:00,355 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] [2022-07-20 06:33:00,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:00,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:00,565 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1781151671, now seen corresponding path program 1 times [2022-07-20 06:33:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:00,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714859143] [2022-07-20 06:33:00,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:00,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:00,567 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:00,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-07-20 06:33:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:00,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:00,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:00,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:00,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:00,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714859143] [2022-07-20 06:33:00,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714859143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:00,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:00,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:00,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324162756] [2022-07-20 06:33:00,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:00,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:00,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:00,754 INFO L87 Difference]: Start difference. First operand 400 states and 504 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:00,906 INFO L93 Difference]: Finished difference Result 431 states and 539 transitions. [2022-07-20 06:33:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 50 [2022-07-20 06:33:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:00,908 INFO L225 Difference]: With dead ends: 431 [2022-07-20 06:33:00,909 INFO L226 Difference]: Without dead ends: 418 [2022-07-20 06:33:00,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:00,909 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 22 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:00,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2039 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-07-20 06:33:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 400. [2022-07-20 06:33:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 356 states have (on average 1.2556179775280898) internal successors, (447), 361 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-20 06:33:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 504 transitions. [2022-07-20 06:33:00,917 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 504 transitions. Word has length 50 [2022-07-20 06:33:00,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:00,917 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 504 transitions. [2022-07-20 06:33:00,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 504 transitions. [2022-07-20 06:33:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-20 06:33:00,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:00,919 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] [2022-07-20 06:33:00,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:01,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:01,129 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash 194568055, now seen corresponding path program 1 times [2022-07-20 06:33:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:01,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194087269] [2022-07-20 06:33:01,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:01,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:01,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:01,131 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:01,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-07-20 06:33:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:01,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:01,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:01,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:01,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:01,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194087269] [2022-07-20 06:33:01,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194087269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:01,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:01,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902981788] [2022-07-20 06:33:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:01,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:01,326 INFO L87 Difference]: Start difference. First operand 400 states and 504 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:01,457 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2022-07-20 06:33:01,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:01,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 50 [2022-07-20 06:33:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:01,458 INFO L225 Difference]: With dead ends: 418 [2022-07-20 06:33:01,459 INFO L226 Difference]: Without dead ends: 402 [2022-07-20 06:33:01,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:01,459 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 22 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:01,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2037 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-07-20 06:33:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 390. [2022-07-20 06:33:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 348 states have (on average 1.2586206896551724) internal successors, (438), 352 states have internal predecessors, (438), 27 states have call successors, (27), 15 states have call predecessors, (27), 14 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2022-07-20 06:33:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 491 transitions. [2022-07-20 06:33:01,464 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 491 transitions. Word has length 50 [2022-07-20 06:33:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:01,465 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 491 transitions. [2022-07-20 06:33:01,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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) [2022-07-20 06:33:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 491 transitions. [2022-07-20 06:33:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 06:33:01,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:01,466 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] [2022-07-20 06:33:01,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:01,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:01,676 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash 568629575, now seen corresponding path program 1 times [2022-07-20 06:33:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:01,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141354660] [2022-07-20 06:33:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:01,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:01,678 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:01,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-07-20 06:33:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:01,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:01,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:01,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:01,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:01,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141354660] [2022-07-20 06:33:01,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141354660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:01,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:01,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:01,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284423389] [2022-07-20 06:33:01,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:01,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:01,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:01,868 INFO L87 Difference]: Start difference. First operand 390 states and 491 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 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) [2022-07-20 06:33:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:02,119 INFO L93 Difference]: Finished difference Result 496 states and 633 transitions. [2022-07-20 06:33:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:02,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 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 53 [2022-07-20 06:33:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:02,121 INFO L225 Difference]: With dead ends: 496 [2022-07-20 06:33:02,121 INFO L226 Difference]: Without dead ends: 474 [2022-07-20 06:33:02,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-20 06:33:02,121 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 305 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:02,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1754 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:33:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-07-20 06:33:02,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 396. [2022-07-20 06:33:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 353 states have (on average 1.254957507082153) internal successors, (443), 358 states have internal predecessors, (443), 27 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-20 06:33:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 497 transitions. [2022-07-20 06:33:02,133 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 497 transitions. Word has length 53 [2022-07-20 06:33:02,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:02,134 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 497 transitions. [2022-07-20 06:33:02,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 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) [2022-07-20 06:33:02,134 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 497 transitions. [2022-07-20 06:33:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-20 06:33:02,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:02,135 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] [2022-07-20 06:33:02,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:02,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:02,346 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash 300087504, now seen corresponding path program 1 times [2022-07-20 06:33:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:02,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097343910] [2022-07-20 06:33:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:02,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:02,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:02,348 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:02,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-07-20 06:33:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:02,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:02,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:02,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:02,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097343910] [2022-07-20 06:33:02,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097343910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:02,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:02,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:02,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015704992] [2022-07-20 06:33:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:02,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:02,530 INFO L87 Difference]: Start difference. First operand 396 states and 497 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-07-20 06:33:02,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:02,670 INFO L93 Difference]: Finished difference Result 436 states and 544 transitions. [2022-07-20 06:33:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 54 [2022-07-20 06:33:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:02,671 INFO L225 Difference]: With dead ends: 436 [2022-07-20 06:33:02,671 INFO L226 Difference]: Without dead ends: 414 [2022-07-20 06:33:02,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:02,672 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 30 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:02,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1993 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-20 06:33:02,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 396. [2022-07-20 06:33:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 353 states have (on average 1.254957507082153) internal successors, (443), 358 states have internal predecessors, (443), 27 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-20 06:33:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 497 transitions. [2022-07-20 06:33:02,679 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 497 transitions. Word has length 54 [2022-07-20 06:33:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:02,680 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 497 transitions. [2022-07-20 06:33:02,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-07-20 06:33:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 497 transitions. [2022-07-20 06:33:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-20 06:33:02,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:02,681 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] [2022-07-20 06:33:02,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:02,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:02,884 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 502675728, now seen corresponding path program 1 times [2022-07-20 06:33:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764246427] [2022-07-20 06:33:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:02,886 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:02,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-07-20 06:33:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:02,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 06:33:02,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:03,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:03,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:03,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764246427] [2022-07-20 06:33:03,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764246427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:03,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:03,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 06:33:03,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032490467] [2022-07-20 06:33:03,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:03,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 06:33:03,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:03,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 06:33:03,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-20 06:33:03,066 INFO L87 Difference]: Start difference. First operand 396 states and 497 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-07-20 06:33:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:03,204 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2022-07-20 06:33:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 06:33:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 54 [2022-07-20 06:33:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:03,206 INFO L225 Difference]: With dead ends: 414 [2022-07-20 06:33:03,206 INFO L226 Difference]: Without dead ends: 380 [2022-07-20 06:33:03,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:03,207 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 33 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:03,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1727 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-07-20 06:33:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 368. [2022-07-20 06:33:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 329 states have (on average 1.2583586626139818) internal successors, (414), 333 states have internal predecessors, (414), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-20 06:33:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 463 transitions. [2022-07-20 06:33:03,213 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 463 transitions. Word has length 54 [2022-07-20 06:33:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:03,213 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 463 transitions. [2022-07-20 06:33:03,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-07-20 06:33:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 463 transitions. [2022-07-20 06:33:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 06:33:03,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:03,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:03,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:03,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:03,422 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:03,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1974701816, now seen corresponding path program 1 times [2022-07-20 06:33:03,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:03,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470896250] [2022-07-20 06:33:03,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:03,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:03,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:03,424 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:03,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-07-20 06:33:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:03,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 06:33:03,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:03,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:03,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:03,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470896250] [2022-07-20 06:33:03,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470896250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:03,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:03,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 06:33:03,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948455473] [2022-07-20 06:33:03,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:03,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 06:33:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 06:33:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 06:33:03,549 INFO L87 Difference]: Start difference. First operand 368 states and 463 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:03,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:03,729 INFO L93 Difference]: Finished difference Result 481 states and 587 transitions. [2022-07-20 06:33:03,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 06:33:03,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 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 63 [2022-07-20 06:33:03,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:03,732 INFO L225 Difference]: With dead ends: 481 [2022-07-20 06:33:03,732 INFO L226 Difference]: Without dead ends: 481 [2022-07-20 06:33:03,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-20 06:33:03,732 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 273 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:03,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 805 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 06:33:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-20 06:33:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 462. [2022-07-20 06:33:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.2445520581113803) internal successors, (514), 419 states have internal predecessors, (514), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-20 06:33:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 568 transitions. [2022-07-20 06:33:03,740 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 568 transitions. Word has length 63 [2022-07-20 06:33:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 568 transitions. [2022-07-20 06:33:03,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 568 transitions. [2022-07-20 06:33:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 06:33:03,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:03,742 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] [2022-07-20 06:33:03,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:03,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:03,951 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:03,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:03,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1711382279, now seen corresponding path program 1 times [2022-07-20 06:33:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:03,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706031199] [2022-07-20 06:33:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:03,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:03,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:03,953 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:03,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-07-20 06:33:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:04,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 06:33:04,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:04,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:04,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:04,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:04,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706031199] [2022-07-20 06:33:04,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706031199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:04,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:04,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:33:04,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824785703] [2022-07-20 06:33:04,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:04,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:33:04,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:04,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:33:04,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:33:04,097 INFO L87 Difference]: Start difference. First operand 462 states and 568 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:04,202 INFO L93 Difference]: Finished difference Result 506 states and 616 transitions. [2022-07-20 06:33:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:33:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 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 63 [2022-07-20 06:33:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:04,204 INFO L225 Difference]: With dead ends: 506 [2022-07-20 06:33:04,204 INFO L226 Difference]: Without dead ends: 490 [2022-07-20 06:33:04,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-07-20 06:33:04,205 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 281 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:04,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1369 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-07-20 06:33:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2022-07-20 06:33:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 420 states have (on average 1.2404761904761905) internal successors, (521), 426 states have internal predecessors, (521), 27 states have call successors, (27), 20 states have call predecessors, (27), 22 states have return successors, (29), 24 states have call predecessors, (29), 23 states have call successors, (29) [2022-07-20 06:33:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 577 transitions. [2022-07-20 06:33:04,213 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 577 transitions. Word has length 63 [2022-07-20 06:33:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:04,213 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 577 transitions. [2022-07-20 06:33:04,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 577 transitions. [2022-07-20 06:33:04,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-20 06:33:04,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:04,218 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] [2022-07-20 06:33:04,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2022-07-20 06:33:04,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:04,423 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:04,424 INFO L85 PathProgramCache]: Analyzing trace with hash -259200957, now seen corresponding path program 1 times [2022-07-20 06:33:04,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:04,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430720566] [2022-07-20 06:33:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:04,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:04,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:04,426 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:04,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-07-20 06:33:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:04,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 06:33:04,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:04,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:04,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:04,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430720566] [2022-07-20 06:33:04,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430720566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:04,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:04,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970988793] [2022-07-20 06:33:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:04,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:04,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:04,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:04,554 INFO L87 Difference]: Start difference. First operand 470 states and 577 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-20 06:33:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:04,572 INFO L93 Difference]: Finished difference Result 472 states and 575 transitions. [2022-07-20 06:33:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:04,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-07-20 06:33:04,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:04,574 INFO L225 Difference]: With dead ends: 472 [2022-07-20 06:33:04,574 INFO L226 Difference]: Without dead ends: 472 [2022-07-20 06:33:04,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:04,575 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 20 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:04,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 469 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-07-20 06:33:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2022-07-20 06:33:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 420 states have (on average 1.2333333333333334) internal successors, (518), 426 states have internal predecessors, (518), 27 states have call successors, (27), 20 states have call predecessors, (27), 22 states have return successors, (29), 24 states have call predecessors, (29), 23 states have call successors, (29) [2022-07-20 06:33:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 574 transitions. [2022-07-20 06:33:04,583 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 574 transitions. Word has length 64 [2022-07-20 06:33:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:04,583 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 574 transitions. [2022-07-20 06:33:04,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-20 06:33:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 574 transitions. [2022-07-20 06:33:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-20 06:33:04,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:04,585 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] [2022-07-20 06:33:04,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2022-07-20 06:33:04,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:04,794 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1980841952, now seen corresponding path program 1 times [2022-07-20 06:33:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:04,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266791654] [2022-07-20 06:33:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:04,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:04,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:04,796 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:04,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-07-20 06:33:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:04,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 06:33:04,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 06:33:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:04,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 06:33:04,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 06:33:04,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266791654] [2022-07-20 06:33:04,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266791654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:04,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:04,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 06:33:04,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975021316] [2022-07-20 06:33:04,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:04,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 06:33:04,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 06:33:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 06:33:04,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-20 06:33:04,949 INFO L87 Difference]: Start difference. First operand 470 states and 574 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:05,043 INFO L93 Difference]: Finished difference Result 506 states and 612 transitions. [2022-07-20 06:33:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 06:33:05,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 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 64 [2022-07-20 06:33:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:05,046 INFO L225 Difference]: With dead ends: 506 [2022-07-20 06:33:05,046 INFO L226 Difference]: Without dead ends: 490 [2022-07-20 06:33:05,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-20 06:33:05,047 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 27 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 06:33:05,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1742 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 06:33:05,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-07-20 06:33:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 462. [2022-07-20 06:33:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.234866828087167) internal successors, (510), 419 states have internal predecessors, (510), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-07-20 06:33:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 564 transitions. [2022-07-20 06:33:05,054 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 564 transitions. Word has length 64 [2022-07-20 06:33:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:05,055 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 564 transitions. [2022-07-20 06:33:05,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-20 06:33:05,057 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 564 transitions. [2022-07-20 06:33:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-20 06:33:05,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:05,058 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] [2022-07-20 06:33:05,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:05,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:05,270 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:05,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1972927547, now seen corresponding path program 1 times [2022-07-20 06:33:05,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 06:33:05,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051528666] [2022-07-20 06:33:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:05,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 06:33:05,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 06:33:05,272 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 06:33:05,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-07-20 06:33:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 06:33:05,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 06:33:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 06:33:05,514 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-20 06:33:05,523 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 06:33:05,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-20 06:33:05,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-20 06:33:05,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-07-20 06:33:05,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 06:33:05,731 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] [2022-07-20 06:33:05,734 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 06:33:05,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:33:05 BoogieIcfgContainer [2022-07-20 06:33:05,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 06:33:05,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 06:33:05,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 06:33:05,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 06:33:05,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:32:39" (3/4) ... [2022-07-20 06:33:05,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-20 06:33:05,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 06:33:05,855 INFO L158 Benchmark]: Toolchain (without parser) took 27729.59ms. Allocated memory was 52.4MB in the beginning and 111.1MB in the end (delta: 58.7MB). Free memory was 28.6MB in the beginning and 75.2MB in the end (delta: -46.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,856 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:33:05,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.71ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.4MB in the beginning and 36.9MB in the end (delta: -8.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.71ms. Allocated memory is still 62.9MB. Free memory was 36.9MB in the beginning and 44.6MB in the end (delta: -7.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,856 INFO L158 Benchmark]: Boogie Preprocessor took 76.13ms. Allocated memory is still 62.9MB. Free memory was 44.6MB in the beginning and 41.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,856 INFO L158 Benchmark]: RCFGBuilder took 946.74ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 33.2MB in the end (delta: 8.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,857 INFO L158 Benchmark]: TraceAbstraction took 26070.28ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 32.8MB in the beginning and 76.2MB in the end (delta: -43.4MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-07-20 06:33:05,857 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 111.1MB. Free memory was 76.2MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:33:05,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.71ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.4MB in the beginning and 36.9MB in the end (delta: -8.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.71ms. Allocated memory is still 62.9MB. Free memory was 36.9MB in the beginning and 44.6MB in the end (delta: -7.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.13ms. Allocated memory is still 62.9MB. Free memory was 44.6MB in the beginning and 41.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 946.74ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 33.2MB in the end (delta: 8.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26070.28ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 32.8MB in the beginning and 76.2MB in the end (delta: -43.4MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 111.1MB. Free memory was 76.2MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L708] CALL _BLAST_init() [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] return (259); VAL [\old(DisketteExtension)=10, \old(Irp)=9, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 239 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 25.9s, OverallIterations: 48, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7518 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7410 mSDsluCounter, 52243 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38153 mSDsCounter, 464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4784 IncrementalHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 464 mSolverCounterUnsat, 14090 mSDtfsCounter, 4784 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1992 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=13, InterpolantAutomatonStates: 270, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 47 MinimizatonAttempts, 1102 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2026 NumberOfCodeBlocks, 2026 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1913 ConstructedInterpolants, 0 QuantifiedInterpolants, 5410 SizeOfPredicates, 85 NumberOfNonLiveVariables, 7245 ConjunctsInSsa, 244 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-20 06:33:05,896 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: UNKNOWN: Overapproximated counterexample