./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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_simpl4.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 f5e490cdb414af150c1a875602a078da9d38c5d6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_simpl4.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 f5e490cdb414af150c1a875602a078da9d38c5d6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 07:48:44,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 07:48:44,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 07:48:44,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 07:48:44,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 07:48:44,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 07:48:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 07:48:44,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 07:48:44,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 07:48:44,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 07:48:44,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 07:48:44,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 07:48:44,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 07:48:44,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 07:48:44,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 07:48:44,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 07:48:44,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 07:48:44,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 07:48:44,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 07:48:44,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 07:48:44,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 07:48:44,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 07:48:44,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 07:48:44,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 07:48:44,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 07:48:44,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 07:48:44,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 07:48:44,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 07:48:44,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 07:48:44,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 07:48:44,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 07:48:44,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 07:48:44,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 07:48:44,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 07:48:44,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 07:48:44,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 07:48:44,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 07:48:44,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 07:48:44,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 07:48:44,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 07:48:44,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 07:48:44,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 07:48:44,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 07:48:44,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 07:48:44,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 07:48:44,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 07:48:44,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 07:48:44,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 07:48:44,552 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 07:48:44,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 07:48:44,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 07:48:44,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 07:48:44,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 07:48:44,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 07:48:44,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 07:48:44,554 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 07:48:44,555 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 07:48:44,555 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 07:48:44,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 07:48:44,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 07:48:44,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 07:48:44,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 07:48:44,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 07:48:44,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 07:48:44,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 07:48:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:48:44,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 07:48:44,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 07:48:44,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 07:48:44,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 07:48:44,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 07:48:44,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5e490cdb414af150c1a875602a078da9d38c5d6 [2021-08-27 07:48:44,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 07:48:44,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 07:48:44,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 07:48:44,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 07:48:44,878 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 07:48:44,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-08-27 07:48:44,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5a8f66c/8bcdcc813dcf49b28c72931bb9248b3a/FLAG628f8f1ed [2021-08-27 07:48:45,431 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 07:48:45,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-08-27 07:48:45,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5a8f66c/8bcdcc813dcf49b28c72931bb9248b3a/FLAG628f8f1ed [2021-08-27 07:48:45,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5a8f66c/8bcdcc813dcf49b28c72931bb9248b3a [2021-08-27 07:48:45,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 07:48:45,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 07:48:45,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 07:48:45,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 07:48:45,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 07:48:45,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:48:45" (1/1) ... [2021-08-27 07:48:45,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c9b52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:45, skipping insertion in model container [2021-08-27 07:48:45,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:48:45" (1/1) ... [2021-08-27 07:48:45,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 07:48:45,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 07:48:46,188 WARN L228 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_simpl4.cil-1.c[48581,48594] [2021-08-27 07:48:46,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:48:46,197 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 07:48:46,294 WARN L228 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_simpl4.cil-1.c[48581,48594] [2021-08-27 07:48:46,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:48:46,314 INFO L208 MainTranslator]: Completed translation [2021-08-27 07:48:46,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46 WrapperNode [2021-08-27 07:48:46,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 07:48:46,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 07:48:46,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 07:48:46,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 07:48:46,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 07:48:46,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 07:48:46,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 07:48:46,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 07:48:46,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (1/1) ... [2021-08-27 07:48:46,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:48:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 07:48:46,458 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) [2021-08-27 07:48:46,487 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 [2021-08-27 07:48:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 07:48:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 07:48:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 07:48:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-27 07:48:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2021-08-27 07:48:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-08-27 07:48:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2021-08-27 07:48:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2021-08-27 07:48:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2021-08-27 07:48:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2021-08-27 07:48:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2021-08-27 07:48:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-27 07:48:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-08-27 07:48:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2021-08-27 07:48:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2021-08-27 07:48:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-27 07:48:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 07:48:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-27 07:48:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2021-08-27 07:48:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-08-27 07:48:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2021-08-27 07:48:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2021-08-27 07:48:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2021-08-27 07:48:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2021-08-27 07:48:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-08-27 07:48:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2021-08-27 07:48:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2021-08-27 07:48:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2021-08-27 07:48:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-08-27 07:48:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-27 07:48:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-27 07:48:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-27 07:48:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2021-08-27 07:48:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2021-08-27 07:48:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-27 07:48:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-27 07:48:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2021-08-27 07:48:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-27 07:48:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 07:48:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-27 07:48:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 07:48:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 07:48:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 07:48:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 07:48:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 07:48:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 07:48:46,854 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:46,877 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:46,877 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:46,883 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:46,890 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:46,890 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:46,894 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-08-27 07:48:47,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-08-27 07:48:47,060 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,131 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-08-27 07:48:47,131 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-08-27 07:48:47,146 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,166 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-27 07:48:47,167 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-27 07:48:47,222 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,229 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,236 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,236 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,236 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,243 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,244 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,270 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:48:47,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:48:47,299 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-08-27 07:48:47,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-08-27 07:48:47,465 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,470 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,471 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,471 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,481 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,481 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,481 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:48:47,485 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:48:47,485 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:48:47,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 07:48:47,521 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 07:48:47,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:48:47 BoogieIcfgContainer [2021-08-27 07:48:47,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 07:48:47,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 07:48:47,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 07:48:47,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 07:48:47,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 07:48:45" (1/3) ... [2021-08-27 07:48:47,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b9996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:48:47, skipping insertion in model container [2021-08-27 07:48:47,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:48:46" (2/3) ... [2021-08-27 07:48:47,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b9996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:48:47, skipping insertion in model container [2021-08-27 07:48:47,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:48:47" (3/3) ... [2021-08-27 07:48:47,533 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-08-27 07:48:47,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 07:48:47,537 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-27 07:48:47,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 07:48:47,573 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 07:48:47,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-27 07:48:47,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 316 states have internal predecessors, (424), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2021-08-27 07:48:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 07:48:47,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:47,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:48:47,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:47,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1731487075, now seen corresponding path program 1 times [2021-08-27 07:48:47,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:47,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933519898] [2021-08-27 07:48:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:47,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:47,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:47,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:47,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933519898] [2021-08-27 07:48:47,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933519898] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:47,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:47,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 07:48:47,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58391978] [2021-08-27 07:48:47,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:48:47,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:47,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:48:47,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:48:47,995 INFO L87 Difference]: Start difference. First operand has 391 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 316 states have internal predecessors, (424), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:48:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:48,925 INFO L93 Difference]: Finished difference Result 430 states and 604 transitions. [2021-08-27 07:48:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:48:48,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 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 15 [2021-08-27 07:48:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:48,944 INFO L225 Difference]: With dead ends: 430 [2021-08-27 07:48:48,944 INFO L226 Difference]: Without dead ends: 424 [2021-08-27 07:48:48,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 134.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:48:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-08-27 07:48:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2021-08-27 07:48:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.4346289752650176) internal successors, (406), 308 states have internal predecessors, (406), 72 states have call successors, (72), 28 states have call predecessors, (72), 26 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-08-27 07:48:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 527 transitions. [2021-08-27 07:48:49,004 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 527 transitions. Word has length 15 [2021-08-27 07:48:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:49,004 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 527 transitions. [2021-08-27 07:48:49,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:48:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 527 transitions. [2021-08-27 07:48:49,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 07:48:49,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:49,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:48:49,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 07:48:49,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:49,007 INFO L82 PathProgramCache]: Analyzing trace with hash -856435882, now seen corresponding path program 1 times [2021-08-27 07:48:49,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:49,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376157995] [2021-08-27 07:48:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:49,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:49,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:49,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376157995] [2021-08-27 07:48:49,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376157995] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:49,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:49,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 07:48:49,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172981710] [2021-08-27 07:48:49,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:48:49,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:48:49,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:48:49,280 INFO L87 Difference]: Start difference. First operand 382 states and 527 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 07:48:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:50,560 INFO L93 Difference]: Finished difference Result 424 states and 589 transitions. [2021-08-27 07:48:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:48:50,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-08-27 07:48:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:50,564 INFO L225 Difference]: With dead ends: 424 [2021-08-27 07:48:50,564 INFO L226 Difference]: Without dead ends: 424 [2021-08-27 07:48:50,564 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:48:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-08-27 07:48:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2021-08-27 07:48:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.431095406360424) internal successors, (405), 308 states have internal predecessors, (405), 72 states have call successors, (72), 28 states have call predecessors, (72), 26 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-08-27 07:48:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2021-08-27 07:48:50,598 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2021-08-27 07:48:50,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:50,599 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2021-08-27 07:48:50,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 07:48:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2021-08-27 07:48:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 07:48:50,600 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:50,600 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:50,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 07:48:50,601 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:50,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:50,601 INFO L82 PathProgramCache]: Analyzing trace with hash 566376368, now seen corresponding path program 1 times [2021-08-27 07:48:50,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:50,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149519686] [2021-08-27 07:48:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:50,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:50,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:50,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:50,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149519686] [2021-08-27 07:48:50,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149519686] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:50,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:50,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:48:50,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298283344] [2021-08-27 07:48:50,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:48:50,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:50,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:48:50,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:48:50,822 INFO L87 Difference]: Start difference. First operand 382 states and 526 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:52,191 INFO L93 Difference]: Finished difference Result 589 states and 804 transitions. [2021-08-27 07:48:52,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:48:52,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-27 07:48:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:52,195 INFO L225 Difference]: With dead ends: 589 [2021-08-27 07:48:52,195 INFO L226 Difference]: Without dead ends: 588 [2021-08-27 07:48:52,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 235.7ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:48:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-08-27 07:48:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 527. [2021-08-27 07:48:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 406 states have (on average 1.354679802955665) internal successors, (550), 412 states have internal predecessors, (550), 79 states have call successors, (79), 41 states have call predecessors, (79), 41 states have return successors, (90), 75 states have call predecessors, (90), 66 states have call successors, (90) [2021-08-27 07:48:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 719 transitions. [2021-08-27 07:48:52,215 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 719 transitions. Word has length 25 [2021-08-27 07:48:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:52,216 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 719 transitions. [2021-08-27 07:48:52,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 719 transitions. [2021-08-27 07:48:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 07:48:52,217 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:52,218 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:52,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 07:48:52,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:52,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:52,218 INFO L82 PathProgramCache]: Analyzing trace with hash 974475484, now seen corresponding path program 1 times [2021-08-27 07:48:52,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:52,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336526519] [2021-08-27 07:48:52,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:52,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:52,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:52,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336526519] [2021-08-27 07:48:52,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336526519] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:52,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:52,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:48:52,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864581576] [2021-08-27 07:48:52,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:48:52,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:52,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:48:52,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:48:52,415 INFO L87 Difference]: Start difference. First operand 527 states and 719 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:53,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:53,519 INFO L93 Difference]: Finished difference Result 678 states and 909 transitions. [2021-08-27 07:48:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:48:53,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-08-27 07:48:53,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:53,523 INFO L225 Difference]: With dead ends: 678 [2021-08-27 07:48:53,523 INFO L226 Difference]: Without dead ends: 678 [2021-08-27 07:48:53,523 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 228.6ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:48:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-08-27 07:48:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2021-08-27 07:48:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 457 states have (on average 1.3522975929978118) internal successors, (618), 471 states have internal predecessors, (618), 83 states have call successors, (83), 46 states have call predecessors, (83), 50 states have return successors, (101), 78 states have call predecessors, (101), 72 states have call successors, (101) [2021-08-27 07:48:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 802 transitions. [2021-08-27 07:48:53,542 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 802 transitions. Word has length 31 [2021-08-27 07:48:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:53,543 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 802 transitions. [2021-08-27 07:48:53,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 802 transitions. [2021-08-27 07:48:53,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-27 07:48:53,545 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:53,545 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:53,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 07:48:53,545 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:53,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:53,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1211701176, now seen corresponding path program 1 times [2021-08-27 07:48:53,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:53,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788098991] [2021-08-27 07:48:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:53,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:53,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:53,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788098991] [2021-08-27 07:48:53,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788098991] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:53,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:53,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:48:53,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666880071] [2021-08-27 07:48:53,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:48:53,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:53,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:48:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:48:53,717 INFO L87 Difference]: Start difference. First operand 591 states and 802 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:54,862 INFO L93 Difference]: Finished difference Result 827 states and 1114 transitions. [2021-08-27 07:48:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:48:54,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-08-27 07:48:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:54,867 INFO L225 Difference]: With dead ends: 827 [2021-08-27 07:48:54,867 INFO L226 Difference]: Without dead ends: 827 [2021-08-27 07:48:54,867 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:48:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2021-08-27 07:48:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 779. [2021-08-27 07:48:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 613 states have (on average 1.3425774877650898) internal successors, (823), 624 states have internal predecessors, (823), 100 states have call successors, (100), 61 states have call predecessors, (100), 65 states have return successors, (136), 97 states have call predecessors, (136), 91 states have call successors, (136) [2021-08-27 07:48:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2021-08-27 07:48:54,889 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 33 [2021-08-27 07:48:54,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:54,890 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2021-08-27 07:48:54,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2021-08-27 07:48:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 07:48:54,892 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:54,892 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:54,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 07:48:54,893 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:54,893 INFO L82 PathProgramCache]: Analyzing trace with hash -367463930, now seen corresponding path program 1 times [2021-08-27 07:48:54,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:54,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241350588] [2021-08-27 07:48:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:54,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-08-27 07:48:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:48:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:55,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:55,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241350588] [2021-08-27 07:48:55,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241350588] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:55,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:55,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:48:55,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766319915] [2021-08-27 07:48:55,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:48:55,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:55,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:48:55,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:48:55,068 INFO L87 Difference]: Start difference. First operand 779 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:48:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:56,147 INFO L93 Difference]: Finished difference Result 876 states and 1180 transitions. [2021-08-27 07:48:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:48:56,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2021-08-27 07:48:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:56,154 INFO L225 Difference]: With dead ends: 876 [2021-08-27 07:48:56,154 INFO L226 Difference]: Without dead ends: 876 [2021-08-27 07:48:56,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 224.1ms TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:48:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-08-27 07:48:56,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 822. [2021-08-27 07:48:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 649 states have (on average 1.337442218798151) internal successors, (868), 662 states have internal predecessors, (868), 100 states have call successors, (100), 61 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2021-08-27 07:48:56,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1111 transitions. [2021-08-27 07:48:56,180 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1111 transitions. Word has length 39 [2021-08-27 07:48:56,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:56,181 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 1111 transitions. [2021-08-27 07:48:56,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:48:56,181 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1111 transitions. [2021-08-27 07:48:56,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 07:48:56,183 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:56,183 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:56,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 07:48:56,184 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:56,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:56,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1057168729, now seen corresponding path program 1 times [2021-08-27 07:48:56,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:56,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524979389] [2021-08-27 07:48:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:56,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:56,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:56,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524979389] [2021-08-27 07:48:56,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524979389] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:56,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:56,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:48:56,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014063674] [2021-08-27 07:48:56,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:48:56,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:48:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:48:56,396 INFO L87 Difference]: Start difference. First operand 822 states and 1111 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:48:57,499 INFO L93 Difference]: Finished difference Result 853 states and 1149 transitions. [2021-08-27 07:48:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:48:57,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-08-27 07:48:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:48:57,504 INFO L225 Difference]: With dead ends: 853 [2021-08-27 07:48:57,504 INFO L226 Difference]: Without dead ends: 853 [2021-08-27 07:48:57,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 180.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:48:57,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2021-08-27 07:48:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 833. [2021-08-27 07:48:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3363636363636364) internal successors, (882), 672 states have internal predecessors, (882), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2021-08-27 07:48:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1125 transitions. [2021-08-27 07:48:57,533 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1125 transitions. Word has length 38 [2021-08-27 07:48:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:48:57,533 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1125 transitions. [2021-08-27 07:48:57,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:48:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1125 transitions. [2021-08-27 07:48:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 07:48:57,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:48:57,536 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:48:57,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 07:48:57,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:48:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:48:57,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1946121314, now seen corresponding path program 1 times [2021-08-27 07:48:57,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:48:57,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649875224] [2021-08-27 07:48:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:48:57,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:48:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:48:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:48:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:48:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-08-27 07:48:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:48:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:48:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:48:57,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:48:57,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649875224] [2021-08-27 07:48:57,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649875224] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:48:57,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:48:57,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:48:57,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265725485] [2021-08-27 07:48:57,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:48:57,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:48:57,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:48:57,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:48:57,838 INFO L87 Difference]: Start difference. First operand 833 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:00,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:00,092 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2021-08-27 07:49:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:00,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2021-08-27 07:49:00,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:00,096 INFO L225 Difference]: With dead ends: 887 [2021-08-27 07:49:00,096 INFO L226 Difference]: Without dead ends: 887 [2021-08-27 07:49:00,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 614.5ms TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2021-08-27 07:49:00,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2021-08-27 07:49:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2021-08-27 07:49:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3333333333333333) internal successors, (880), 672 states have internal predecessors, (880), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2021-08-27 07:49:00,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1123 transitions. [2021-08-27 07:49:00,116 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1123 transitions. Word has length 40 [2021-08-27 07:49:00,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:00,116 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1123 transitions. [2021-08-27 07:49:00,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:00,116 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1123 transitions. [2021-08-27 07:49:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 07:49:00,117 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:00,118 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:00,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 07:49:00,118 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:00,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:00,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1462844719, now seen corresponding path program 1 times [2021-08-27 07:49:00,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:00,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872095763] [2021-08-27 07:49:00,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:00,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:49:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:00,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:00,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872095763] [2021-08-27 07:49:00,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872095763] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:00,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:00,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:00,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360838228] [2021-08-27 07:49:00,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:00,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:00,390 INFO L87 Difference]: Start difference. First operand 833 states and 1123 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:02,057 INFO L93 Difference]: Finished difference Result 887 states and 1190 transitions. [2021-08-27 07:49:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2021-08-27 07:49:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:02,062 INFO L225 Difference]: With dead ends: 887 [2021-08-27 07:49:02,062 INFO L226 Difference]: Without dead ends: 887 [2021-08-27 07:49:02,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 653.2ms TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2021-08-27 07:49:02,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2021-08-27 07:49:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2021-08-27 07:49:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3303030303030303) internal successors, (878), 672 states have internal predecessors, (878), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2021-08-27 07:49:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1121 transitions. [2021-08-27 07:49:02,080 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1121 transitions. Word has length 40 [2021-08-27 07:49:02,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:02,081 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1121 transitions. [2021-08-27 07:49:02,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:02,081 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1121 transitions. [2021-08-27 07:49:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 07:49:02,082 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:02,082 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:02,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-27 07:49:02,083 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:02,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1951368972, now seen corresponding path program 1 times [2021-08-27 07:49:02,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:02,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273118276] [2021-08-27 07:49:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:02,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:49:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:02,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:02,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273118276] [2021-08-27 07:49:02,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273118276] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:02,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:02,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:02,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069300642] [2021-08-27 07:49:02,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:02,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:02,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:02,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:02,282 INFO L87 Difference]: Start difference. First operand 833 states and 1121 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:03,383 INFO L93 Difference]: Finished difference Result 893 states and 1196 transitions. [2021-08-27 07:49:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:49:03,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2021-08-27 07:49:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:03,400 INFO L225 Difference]: With dead ends: 893 [2021-08-27 07:49:03,400 INFO L226 Difference]: Without dead ends: 881 [2021-08-27 07:49:03,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 171.2ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2021-08-27 07:49:03,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 831. [2021-08-27 07:49:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 659 states have (on average 1.3292867981790593) internal successors, (876), 671 states have internal predecessors, (876), 99 states have call successors, (99), 62 states have call predecessors, (99), 72 states have return successors, (142), 99 states have call predecessors, (142), 90 states have call successors, (142) [2021-08-27 07:49:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1117 transitions. [2021-08-27 07:49:03,418 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1117 transitions. Word has length 41 [2021-08-27 07:49:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:03,418 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1117 transitions. [2021-08-27 07:49:03,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1117 transitions. [2021-08-27 07:49:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 07:49:03,419 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:03,419 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:03,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-27 07:49:03,420 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:03,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:03,420 INFO L82 PathProgramCache]: Analyzing trace with hash 169705483, now seen corresponding path program 1 times [2021-08-27 07:49:03,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:03,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746663969] [2021-08-27 07:49:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:03,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-08-27 07:49:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:03,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:03,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746663969] [2021-08-27 07:49:03,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746663969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:03,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:03,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:03,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425141823] [2021-08-27 07:49:03,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:03,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:03,617 INFO L87 Difference]: Start difference. First operand 831 states and 1117 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:04,835 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2021-08-27 07:49:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:49:04,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2021-08-27 07:49:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:04,852 INFO L225 Difference]: With dead ends: 891 [2021-08-27 07:49:04,852 INFO L226 Difference]: Without dead ends: 874 [2021-08-27 07:49:04,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 185.0ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-08-27 07:49:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 824. [2021-08-27 07:49:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 655 states have (on average 1.3297709923664123) internal successors, (871), 667 states have internal predecessors, (871), 97 states have call successors, (97), 61 states have call predecessors, (97), 71 states have return successors, (140), 97 states have call predecessors, (140), 88 states have call successors, (140) [2021-08-27 07:49:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1108 transitions. [2021-08-27 07:49:04,879 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1108 transitions. Word has length 42 [2021-08-27 07:49:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:04,880 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1108 transitions. [2021-08-27 07:49:04,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1108 transitions. [2021-08-27 07:49:04,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 07:49:04,881 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:04,881 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:04,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-27 07:49:04,882 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:04,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:04,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1573461952, now seen corresponding path program 1 times [2021-08-27 07:49:04,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:04,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776015945] [2021-08-27 07:49:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:04,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:05,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:05,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:05,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776015945] [2021-08-27 07:49:05,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776015945] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:05,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:05,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349940928] [2021-08-27 07:49:05,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:05,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:05,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:05,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:05,093 INFO L87 Difference]: Start difference. First operand 824 states and 1108 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:06,250 INFO L93 Difference]: Finished difference Result 849 states and 1137 transitions. [2021-08-27 07:49:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2021-08-27 07:49:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:06,254 INFO L225 Difference]: With dead ends: 849 [2021-08-27 07:49:06,254 INFO L226 Difference]: Without dead ends: 849 [2021-08-27 07:49:06,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 306.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2021-08-27 07:49:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 826. [2021-08-27 07:49:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 657 states have (on average 1.3287671232876712) internal successors, (873), 669 states have internal predecessors, (873), 97 states have call successors, (97), 61 states have call predecessors, (97), 71 states have return successors, (140), 97 states have call predecessors, (140), 88 states have call successors, (140) [2021-08-27 07:49:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1110 transitions. [2021-08-27 07:49:06,271 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1110 transitions. Word has length 42 [2021-08-27 07:49:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:06,271 INFO L470 AbstractCegarLoop]: Abstraction has 826 states and 1110 transitions. [2021-08-27 07:49:06,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1110 transitions. [2021-08-27 07:49:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-08-27 07:49:06,272 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:06,272 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:06,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-27 07:49:06,273 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:06,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1164590594, now seen corresponding path program 1 times [2021-08-27 07:49:06,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:06,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113717562] [2021-08-27 07:49:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:06,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-27 07:49:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:06,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:06,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113717562] [2021-08-27 07:49:06,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113717562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:06,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:06,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-27 07:49:06,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831840002] [2021-08-27 07:49:06,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 07:49:06,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 07:49:06,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:49:06,477 INFO L87 Difference]: Start difference. First operand 826 states and 1110 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:07,859 INFO L93 Difference]: Finished difference Result 854 states and 1143 transitions. [2021-08-27 07:49:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2021-08-27 07:49:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:07,867 INFO L225 Difference]: With dead ends: 854 [2021-08-27 07:49:07,867 INFO L226 Difference]: Without dead ends: 854 [2021-08-27 07:49:07,867 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.9ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2021-08-27 07:49:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 830. [2021-08-27 07:49:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 660 states have (on average 1.3272727272727274) internal successors, (876), 672 states have internal predecessors, (876), 97 states have call successors, (97), 61 states have call predecessors, (97), 72 states have return successors, (142), 98 states have call predecessors, (142), 88 states have call successors, (142) [2021-08-27 07:49:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2021-08-27 07:49:07,885 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 44 [2021-08-27 07:49:07,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:07,885 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2021-08-27 07:49:07,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2021-08-27 07:49:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-27 07:49:07,886 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:07,886 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:07,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-27 07:49:07,887 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:07,887 INFO L82 PathProgramCache]: Analyzing trace with hash 2075361617, now seen corresponding path program 1 times [2021-08-27 07:49:07,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:07,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969765920] [2021-08-27 07:49:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:07,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:08,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:08,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969765920] [2021-08-27 07:49:08,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969765920] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:08,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:08,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:08,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769178866] [2021-08-27 07:49:08,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:08,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:08,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:08,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:08,075 INFO L87 Difference]: Start difference. First operand 830 states and 1115 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:09,401 INFO L93 Difference]: Finished difference Result 852 states and 1140 transitions. [2021-08-27 07:49:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:49:09,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-08-27 07:49:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:09,405 INFO L225 Difference]: With dead ends: 852 [2021-08-27 07:49:09,405 INFO L226 Difference]: Without dead ends: 852 [2021-08-27 07:49:09,406 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 327.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-08-27 07:49:09,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 830. [2021-08-27 07:49:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 660 states have (on average 1.3272727272727274) internal successors, (876), 672 states have internal predecessors, (876), 97 states have call successors, (97), 61 states have call predecessors, (97), 72 states have return successors, (142), 98 states have call predecessors, (142), 88 states have call successors, (142) [2021-08-27 07:49:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2021-08-27 07:49:09,421 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 43 [2021-08-27 07:49:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:09,422 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2021-08-27 07:49:09,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2021-08-27 07:49:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 07:49:09,424 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:09,424 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:09,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-27 07:49:09,424 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:09,425 INFO L82 PathProgramCache]: Analyzing trace with hash -200722415, now seen corresponding path program 1 times [2021-08-27 07:49:09,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:09,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735291155] [2021-08-27 07:49:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:09,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 07:49:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:09,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:09,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735291155] [2021-08-27 07:49:09,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735291155] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:09,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:09,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:09,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375316817] [2021-08-27 07:49:09,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:09,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:09,659 INFO L87 Difference]: Start difference. First operand 830 states and 1115 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:10,900 INFO L93 Difference]: Finished difference Result 872 states and 1165 transitions. [2021-08-27 07:49:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:10,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2021-08-27 07:49:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:10,906 INFO L225 Difference]: With dead ends: 872 [2021-08-27 07:49:10,906 INFO L226 Difference]: Without dead ends: 857 [2021-08-27 07:49:10,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 157.5ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-08-27 07:49:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 828. [2021-08-27 07:49:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 659 states have (on average 1.3262518968133536) internal successors, (874), 671 states have internal predecessors, (874), 96 states have call successors, (96), 61 states have call predecessors, (96), 72 states have return successors, (141), 97 states have call predecessors, (141), 87 states have call successors, (141) [2021-08-27 07:49:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1111 transitions. [2021-08-27 07:49:10,924 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1111 transitions. Word has length 45 [2021-08-27 07:49:10,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:10,924 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1111 transitions. [2021-08-27 07:49:10,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:10,925 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1111 transitions. [2021-08-27 07:49:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:49:10,926 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:10,927 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:10,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-27 07:49:10,927 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:10,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:10,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1876016931, now seen corresponding path program 1 times [2021-08-27 07:49:10,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:10,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459822133] [2021-08-27 07:49:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:10,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 07:49:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:11,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:11,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459822133] [2021-08-27 07:49:11,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459822133] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:11,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:11,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:11,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867131676] [2021-08-27 07:49:11,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:11,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:11,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:11,121 INFO L87 Difference]: Start difference. First operand 828 states and 1111 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:12,441 INFO L93 Difference]: Finished difference Result 857 states and 1140 transitions. [2021-08-27 07:49:12,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:49:12,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2021-08-27 07:49:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:12,445 INFO L225 Difference]: With dead ends: 857 [2021-08-27 07:49:12,446 INFO L226 Difference]: Without dead ends: 836 [2021-08-27 07:49:12,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 203.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:49:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-08-27 07:49:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 806. [2021-08-27 07:49:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 641 states have (on average 1.3198127925117005) internal successors, (846), 653 states have internal predecessors, (846), 96 states have call successors, (96), 61 states have call predecessors, (96), 68 states have return successors, (137), 93 states have call predecessors, (137), 87 states have call successors, (137) [2021-08-27 07:49:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1079 transitions. [2021-08-27 07:49:12,461 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1079 transitions. Word has length 46 [2021-08-27 07:49:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:12,462 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 1079 transitions. [2021-08-27 07:49:12,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1079 transitions. [2021-08-27 07:49:12,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:49:12,463 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:12,463 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:12,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-27 07:49:12,464 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:12,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1323876614, now seen corresponding path program 1 times [2021-08-27 07:49:12,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:12,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329169576] [2021-08-27 07:49:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:12,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:12,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:12,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-27 07:49:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:12,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:12,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329169576] [2021-08-27 07:49:12,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329169576] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:12,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:12,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-27 07:49:12,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996743966] [2021-08-27 07:49:12,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 07:49:12,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 07:49:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:49:12,629 INFO L87 Difference]: Start difference. First operand 806 states and 1079 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:14,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:14,337 INFO L93 Difference]: Finished difference Result 1162 states and 1566 transitions. [2021-08-27 07:49:14,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:14,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2021-08-27 07:49:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:14,342 INFO L225 Difference]: With dead ends: 1162 [2021-08-27 07:49:14,342 INFO L226 Difference]: Without dead ends: 1162 [2021-08-27 07:49:14,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 221.1ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2021-08-27 07:49:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 919. [2021-08-27 07:49:14,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 732 states have (on average 1.325136612021858) internal successors, (970), 746 states have internal predecessors, (970), 106 states have call successors, (106), 71 states have call predecessors, (106), 80 states have return successors, (157), 103 states have call predecessors, (157), 97 states have call successors, (157) [2021-08-27 07:49:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1233 transitions. [2021-08-27 07:49:14,362 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1233 transitions. Word has length 47 [2021-08-27 07:49:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:14,363 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1233 transitions. [2021-08-27 07:49:14,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:49:14,363 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1233 transitions. [2021-08-27 07:49:14,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:49:14,364 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:14,364 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:14,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-27 07:49:14,365 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:14,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:14,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1450285211, now seen corresponding path program 1 times [2021-08-27 07:49:14,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:14,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504380237] [2021-08-27 07:49:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:14,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:49:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:14,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:14,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504380237] [2021-08-27 07:49:14,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504380237] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:14,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:14,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:14,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405955363] [2021-08-27 07:49:14,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:14,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:14,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:14,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:14,562 INFO L87 Difference]: Start difference. First operand 919 states and 1233 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:15,470 INFO L93 Difference]: Finished difference Result 961 states and 1283 transitions. [2021-08-27 07:49:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:49:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-08-27 07:49:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:15,473 INFO L225 Difference]: With dead ends: 961 [2021-08-27 07:49:15,473 INFO L226 Difference]: Without dead ends: 946 [2021-08-27 07:49:15,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 131.8ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2021-08-27 07:49:15,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 917. [2021-08-27 07:49:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 731 states have (on average 1.3242134062927498) internal successors, (968), 745 states have internal predecessors, (968), 105 states have call successors, (105), 71 states have call predecessors, (105), 80 states have return successors, (156), 102 states have call predecessors, (156), 96 states have call successors, (156) [2021-08-27 07:49:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1229 transitions. [2021-08-27 07:49:15,490 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1229 transitions. Word has length 47 [2021-08-27 07:49:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:15,490 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1229 transitions. [2021-08-27 07:49:15,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1229 transitions. [2021-08-27 07:49:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-27 07:49:15,491 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:15,491 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:15,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-27 07:49:15,492 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1671438402, now seen corresponding path program 1 times [2021-08-27 07:49:15,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:15,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319158235] [2021-08-27 07:49:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:15,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-27 07:49:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:15,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:15,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319158235] [2021-08-27 07:49:15,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319158235] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:15,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:15,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:15,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638901882] [2021-08-27 07:49:15,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:15,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:15,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:15,729 INFO L87 Difference]: Start difference. First operand 917 states and 1229 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 07:49:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:17,440 INFO L93 Difference]: Finished difference Result 967 states and 1275 transitions. [2021-08-27 07:49:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:17,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2021-08-27 07:49:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:17,443 INFO L225 Difference]: With dead ends: 967 [2021-08-27 07:49:17,443 INFO L226 Difference]: Without dead ends: 967 [2021-08-27 07:49:17,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 537.8ms TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:49:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2021-08-27 07:49:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 908. [2021-08-27 07:49:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 722 states have (on average 1.311634349030471) internal successors, (947), 736 states have internal predecessors, (947), 105 states have call successors, (105), 71 states have call predecessors, (105), 80 states have return successors, (156), 102 states have call predecessors, (156), 96 states have call successors, (156) [2021-08-27 07:49:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1208 transitions. [2021-08-27 07:49:17,484 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1208 transitions. Word has length 48 [2021-08-27 07:49:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:17,485 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1208 transitions. [2021-08-27 07:49:17,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 07:49:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1208 transitions. [2021-08-27 07:49:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 07:49:17,486 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:17,486 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:17,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-27 07:49:17,487 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:17,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:17,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1584755808, now seen corresponding path program 1 times [2021-08-27 07:49:17,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:17,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978996437] [2021-08-27 07:49:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:17,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:17,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:17,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978996437] [2021-08-27 07:49:17,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978996437] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:17,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:17,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:17,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671460956] [2021-08-27 07:49:17,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:17,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:17,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:17,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:17,748 INFO L87 Difference]: Start difference. First operand 908 states and 1208 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:49:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:19,895 INFO L93 Difference]: Finished difference Result 1106 states and 1470 transitions. [2021-08-27 07:49:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 07:49:19,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2021-08-27 07:49:19,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:19,899 INFO L225 Difference]: With dead ends: 1106 [2021-08-27 07:49:19,899 INFO L226 Difference]: Without dead ends: 1106 [2021-08-27 07:49:19,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 758.5ms TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2021-08-27 07:49:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-08-27 07:49:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 963. [2021-08-27 07:49:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 766 states have (on average 1.3054830287206267) internal successors, (1000), 782 states have internal predecessors, (1000), 108 states have call successors, (108), 72 states have call predecessors, (108), 88 states have return successors, (173), 109 states have call predecessors, (173), 99 states have call successors, (173) [2021-08-27 07:49:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1281 transitions. [2021-08-27 07:49:19,916 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1281 transitions. Word has length 50 [2021-08-27 07:49:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:19,917 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1281 transitions. [2021-08-27 07:49:19,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:49:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1281 transitions. [2021-08-27 07:49:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 07:49:19,918 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:19,918 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:19,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-27 07:49:19,918 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:19,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:19,919 INFO L82 PathProgramCache]: Analyzing trace with hash 78678395, now seen corresponding path program 1 times [2021-08-27 07:49:19,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:19,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156654871] [2021-08-27 07:49:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:19,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-08-27 07:49:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:20,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:20,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156654871] [2021-08-27 07:49:20,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156654871] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:20,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:20,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:49:20,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489062138] [2021-08-27 07:49:20,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:49:20,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:49:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:20,141 INFO L87 Difference]: Start difference. First operand 963 states and 1281 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:21,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:21,203 INFO L93 Difference]: Finished difference Result 1007 states and 1331 transitions. [2021-08-27 07:49:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2021-08-27 07:49:21,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:21,207 INFO L225 Difference]: With dead ends: 1007 [2021-08-27 07:49:21,207 INFO L226 Difference]: Without dead ends: 990 [2021-08-27 07:49:21,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 255.7ms TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-08-27 07:49:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 963. [2021-08-27 07:49:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 766 states have (on average 1.2898172323759791) internal successors, (988), 782 states have internal predecessors, (988), 108 states have call successors, (108), 72 states have call predecessors, (108), 88 states have return successors, (173), 109 states have call predecessors, (173), 99 states have call successors, (173) [2021-08-27 07:49:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1269 transitions. [2021-08-27 07:49:21,224 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1269 transitions. Word has length 50 [2021-08-27 07:49:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:21,224 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1269 transitions. [2021-08-27 07:49:21,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1269 transitions. [2021-08-27 07:49:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 07:49:21,225 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:21,225 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:21,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-27 07:49:21,226 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1587211608, now seen corresponding path program 1 times [2021-08-27 07:49:21,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:21,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401447389] [2021-08-27 07:49:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:21,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:21,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-08-27 07:49:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:21,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:21,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401447389] [2021-08-27 07:49:21,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401447389] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:21,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:21,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:21,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874364867] [2021-08-27 07:49:21,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:21,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:21,399 INFO L87 Difference]: Start difference. First operand 963 states and 1269 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 07:49:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:22,659 INFO L93 Difference]: Finished difference Result 716 states and 907 transitions. [2021-08-27 07:49:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:49:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2021-08-27 07:49:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:22,661 INFO L225 Difference]: With dead ends: 716 [2021-08-27 07:49:22,661 INFO L226 Difference]: Without dead ends: 716 [2021-08-27 07:49:22,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 329.6ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:22,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-08-27 07:49:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 654. [2021-08-27 07:49:22,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 523 states have (on average 1.27151051625239) internal successors, (665), 534 states have internal predecessors, (665), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 73 states have call predecessors, (90), 65 states have call successors, (90) [2021-08-27 07:49:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2021-08-27 07:49:22,672 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 52 [2021-08-27 07:49:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:22,672 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2021-08-27 07:49:22,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 07:49:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2021-08-27 07:49:22,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 07:49:22,673 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:22,673 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:22,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-27 07:49:22,673 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:22,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:22,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2071492212, now seen corresponding path program 1 times [2021-08-27 07:49:22,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:22,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744830716] [2021-08-27 07:49:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:22,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:22,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:22,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744830716] [2021-08-27 07:49:22,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744830716] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:22,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:22,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:49:22,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178618655] [2021-08-27 07:49:22,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:49:22,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:49:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:22,903 INFO L87 Difference]: Start difference. First operand 654 states and 829 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:23,988 INFO L93 Difference]: Finished difference Result 701 states and 883 transitions. [2021-08-27 07:49:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:23,989 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2021-08-27 07:49:23,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:23,991 INFO L225 Difference]: With dead ends: 701 [2021-08-27 07:49:23,991 INFO L226 Difference]: Without dead ends: 676 [2021-08-27 07:49:23,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 259.3ms TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:49:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-08-27 07:49:23,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 644. [2021-08-27 07:49:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 513 states have (on average 1.267056530214425) internal successors, (650), 524 states have internal predecessors, (650), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 73 states have call predecessors, (90), 65 states have call successors, (90) [2021-08-27 07:49:24,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 814 transitions. [2021-08-27 07:49:24,001 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 814 transitions. Word has length 51 [2021-08-27 07:49:24,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:24,001 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 814 transitions. [2021-08-27 07:49:24,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:24,001 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 814 transitions. [2021-08-27 07:49:24,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 07:49:24,002 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:24,002 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:24,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-27 07:49:24,003 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:24,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1186334494, now seen corresponding path program 1 times [2021-08-27 07:49:24,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:24,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234877351] [2021-08-27 07:49:24,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:24,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:24,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:24,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234877351] [2021-08-27 07:49:24,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234877351] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:24,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:24,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:49:24,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100920676] [2021-08-27 07:49:24,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:49:24,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:24,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:49:24,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:24,236 INFO L87 Difference]: Start difference. First operand 644 states and 814 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:25,660 INFO L93 Difference]: Finished difference Result 678 states and 855 transitions. [2021-08-27 07:49:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:49:25,661 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2021-08-27 07:49:25,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:25,663 INFO L225 Difference]: With dead ends: 678 [2021-08-27 07:49:25,663 INFO L226 Difference]: Without dead ends: 678 [2021-08-27 07:49:25,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 261.8ms TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-08-27 07:49:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 647. [2021-08-27 07:49:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 516 states have (on average 1.2655038759689923) internal successors, (653), 526 states have internal predecessors, (653), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 74 states have call predecessors, (90), 65 states have call successors, (90) [2021-08-27 07:49:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 817 transitions. [2021-08-27 07:49:25,673 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 817 transitions. Word has length 51 [2021-08-27 07:49:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:25,673 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 817 transitions. [2021-08-27 07:49:25,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:25,673 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 817 transitions. [2021-08-27 07:49:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 07:49:25,674 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:25,674 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:25,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-27 07:49:25,674 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:25,675 INFO L82 PathProgramCache]: Analyzing trace with hash -522702331, now seen corresponding path program 1 times [2021-08-27 07:49:25,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:25,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472605477] [2021-08-27 07:49:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:25,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:25,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:25,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472605477] [2021-08-27 07:49:25,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472605477] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:25,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:25,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:25,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183937262] [2021-08-27 07:49:25,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:25,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:25,855 INFO L87 Difference]: Start difference. First operand 647 states and 817 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:26,847 INFO L93 Difference]: Finished difference Result 884 states and 1134 transitions. [2021-08-27 07:49:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-08-27 07:49:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:26,850 INFO L225 Difference]: With dead ends: 884 [2021-08-27 07:49:26,850 INFO L226 Difference]: Without dead ends: 884 [2021-08-27 07:49:26,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 204.3ms TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2021-08-27 07:49:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 708. [2021-08-27 07:49:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 568 states have (on average 1.2517605633802817) internal successors, (711), 571 states have internal predecessors, (711), 76 states have call successors, (76), 49 states have call predecessors, (76), 63 states have return successors, (104), 88 states have call predecessors, (104), 67 states have call successors, (104) [2021-08-27 07:49:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 891 transitions. [2021-08-27 07:49:26,862 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 891 transitions. Word has length 52 [2021-08-27 07:49:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:26,862 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 891 transitions. [2021-08-27 07:49:26,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:26,863 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 891 transitions. [2021-08-27 07:49:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 07:49:26,864 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:26,864 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:26,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-27 07:49:26,864 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash -665981689, now seen corresponding path program 1 times [2021-08-27 07:49:26,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:26,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382168565] [2021-08-27 07:49:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:26,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:27,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:27,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:27,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382168565] [2021-08-27 07:49:27,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382168565] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:27,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:27,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:27,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057611122] [2021-08-27 07:49:27,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:27,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:27,083 INFO L87 Difference]: Start difference. First operand 708 states and 891 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:49:28,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:28,780 INFO L93 Difference]: Finished difference Result 695 states and 869 transitions. [2021-08-27 07:49:28,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:49:28,780 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 52 [2021-08-27 07:49:28,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:28,782 INFO L225 Difference]: With dead ends: 695 [2021-08-27 07:49:28,782 INFO L226 Difference]: Without dead ends: 695 [2021-08-27 07:49:28,782 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 542.9ms TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2021-08-27 07:49:28,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2021-08-27 07:49:28,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 651. [2021-08-27 07:49:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 519 states have (on average 1.252408477842004) internal successors, (650), 529 states have internal predecessors, (650), 74 states have call successors, (74), 47 states have call predecessors, (74), 57 states have return successors, (91), 75 states have call predecessors, (91), 65 states have call successors, (91) [2021-08-27 07:49:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 815 transitions. [2021-08-27 07:49:28,792 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 815 transitions. Word has length 52 [2021-08-27 07:49:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:28,792 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 815 transitions. [2021-08-27 07:49:28,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:49:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 815 transitions. [2021-08-27 07:49:28,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:49:28,794 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:28,794 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:28,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-27 07:49:28,794 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:28,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1428975009, now seen corresponding path program 1 times [2021-08-27 07:49:28,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:28,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120551086] [2021-08-27 07:49:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:28,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:29,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:29,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120551086] [2021-08-27 07:49:29,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120551086] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:29,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:29,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-27 07:49:29,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095612244] [2021-08-27 07:49:29,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 07:49:29,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 07:49:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:29,020 INFO L87 Difference]: Start difference. First operand 651 states and 815 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:30,611 INFO L93 Difference]: Finished difference Result 693 states and 864 transitions. [2021-08-27 07:49:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-27 07:49:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:30,613 INFO L225 Difference]: With dead ends: 693 [2021-08-27 07:49:30,613 INFO L226 Difference]: Without dead ends: 692 [2021-08-27 07:49:30,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 162.7ms TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2021-08-27 07:49:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 659. [2021-08-27 07:49:30,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 526 states have (on average 1.2490494296577948) internal successors, (657), 536 states have internal predecessors, (657), 74 states have call successors, (74), 47 states have call predecessors, (74), 58 states have return successors, (92), 76 states have call predecessors, (92), 65 states have call successors, (92) [2021-08-27 07:49:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 823 transitions. [2021-08-27 07:49:30,622 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 823 transitions. Word has length 53 [2021-08-27 07:49:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:30,622 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 823 transitions. [2021-08-27 07:49:30,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:30,623 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 823 transitions. [2021-08-27 07:49:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:49:30,624 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:30,624 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:30,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-27 07:49:30,624 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:30,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1428698179, now seen corresponding path program 1 times [2021-08-27 07:49:30,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:30,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802950548] [2021-08-27 07:49:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:30,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:30,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:30,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802950548] [2021-08-27 07:49:30,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802950548] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:30,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:30,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-27 07:49:30,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509019366] [2021-08-27 07:49:30,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 07:49:30,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 07:49:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:30,893 INFO L87 Difference]: Start difference. First operand 659 states and 823 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:32,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:32,386 INFO L93 Difference]: Finished difference Result 734 states and 923 transitions. [2021-08-27 07:49:32,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:32,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-27 07:49:32,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:32,389 INFO L225 Difference]: With dead ends: 734 [2021-08-27 07:49:32,389 INFO L226 Difference]: Without dead ends: 722 [2021-08-27 07:49:32,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 279.0ms TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-08-27 07:49:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 671. [2021-08-27 07:49:32,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 537 states have (on average 1.2513966480446927) internal successors, (672), 548 states have internal predecessors, (672), 74 states have call successors, (74), 47 states have call predecessors, (74), 59 states have return successors, (99), 76 states have call predecessors, (99), 65 states have call successors, (99) [2021-08-27 07:49:32,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 845 transitions. [2021-08-27 07:49:32,397 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 845 transitions. Word has length 53 [2021-08-27 07:49:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:32,397 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 845 transitions. [2021-08-27 07:49:32,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 845 transitions. [2021-08-27 07:49:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:49:32,398 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:32,399 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:32,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-27 07:49:32,399 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:32,399 INFO L82 PathProgramCache]: Analyzing trace with hash -554964738, now seen corresponding path program 1 times [2021-08-27 07:49:32,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:32,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254378694] [2021-08-27 07:49:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:32,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 07:49:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 07:49:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:32,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:32,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254378694] [2021-08-27 07:49:32,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254378694] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:32,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:32,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:49:32,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396860889] [2021-08-27 07:49:32,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:49:32,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:49:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:32,684 INFO L87 Difference]: Start difference. First operand 671 states and 845 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:33,978 INFO L93 Difference]: Finished difference Result 714 states and 894 transitions. [2021-08-27 07:49:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-08-27 07:49:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:33,981 INFO L225 Difference]: With dead ends: 714 [2021-08-27 07:49:33,981 INFO L226 Difference]: Without dead ends: 689 [2021-08-27 07:49:33,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 201.6ms TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2021-08-27 07:49:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 659. [2021-08-27 07:49:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.25) internal successors, (660), 539 states have internal predecessors, (660), 72 states have call successors, (72), 46 states have call predecessors, (72), 58 states have return successors, (97), 74 states have call predecessors, (97), 63 states have call successors, (97) [2021-08-27 07:49:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 829 transitions. [2021-08-27 07:49:33,992 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 829 transitions. Word has length 55 [2021-08-27 07:49:33,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:33,992 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 829 transitions. [2021-08-27 07:49:33,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 829 transitions. [2021-08-27 07:49:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-27 07:49:33,994 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:33,994 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:33,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-27 07:49:33,994 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:33,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2009506008, now seen corresponding path program 1 times [2021-08-27 07:49:33,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:33,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931601304] [2021-08-27 07:49:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:33,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:34,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:34,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931601304] [2021-08-27 07:49:34,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931601304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:34,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:34,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:34,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909511693] [2021-08-27 07:49:34,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:34,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:34,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:34,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:34,251 INFO L87 Difference]: Start difference. First operand 659 states and 829 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:36,114 INFO L93 Difference]: Finished difference Result 838 states and 1074 transitions. [2021-08-27 07:49:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:49:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2021-08-27 07:49:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:36,116 INFO L225 Difference]: With dead ends: 838 [2021-08-27 07:49:36,116 INFO L226 Difference]: Without dead ends: 824 [2021-08-27 07:49:36,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 631.2ms TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-08-27 07:49:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-08-27 07:49:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2021-08-27 07:49:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 515 states have (on average 1.254368932038835) internal successors, (646), 525 states have internal predecessors, (646), 71 states have call successors, (71), 46 states have call predecessors, (71), 56 states have return successors, (88), 72 states have call predecessors, (88), 62 states have call successors, (88) [2021-08-27 07:49:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2021-08-27 07:49:36,126 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 54 [2021-08-27 07:49:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:36,126 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2021-08-27 07:49:36,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:49:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2021-08-27 07:49:36,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 07:49:36,127 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:36,127 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:36,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-27 07:49:36,127 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:36,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:36,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1147913992, now seen corresponding path program 1 times [2021-08-27 07:49:36,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:36,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140344485] [2021-08-27 07:49:36,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:36,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:49:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-08-27 07:49:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:36,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:36,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140344485] [2021-08-27 07:49:36,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140344485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:36,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:36,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:49:36,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848124098] [2021-08-27 07:49:36,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:49:36,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:49:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:49:36,295 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:37,242 INFO L93 Difference]: Finished difference Result 682 states and 853 transitions. [2021-08-27 07:49:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:49:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-08-27 07:49:37,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:37,244 INFO L225 Difference]: With dead ends: 682 [2021-08-27 07:49:37,244 INFO L226 Difference]: Without dead ends: 682 [2021-08-27 07:49:37,244 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.1ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:37,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-08-27 07:49:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 648. [2021-08-27 07:49:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 519 states have (on average 1.2485549132947977) internal successors, (648), 530 states have internal predecessors, (648), 71 states have call successors, (71), 46 states have call predecessors, (71), 57 states have return successors, (92), 72 states have call predecessors, (92), 62 states have call successors, (92) [2021-08-27 07:49:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 811 transitions. [2021-08-27 07:49:37,251 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 811 transitions. Word has length 58 [2021-08-27 07:49:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:37,251 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 811 transitions. [2021-08-27 07:49:37,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 811 transitions. [2021-08-27 07:49:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:37,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:37,252 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:37,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-27 07:49:37,253 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:37,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1720295482, now seen corresponding path program 1 times [2021-08-27 07:49:37,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:37,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245511407] [2021-08-27 07:49:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:37,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:49:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:49:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:37,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:37,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245511407] [2021-08-27 07:49:37,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245511407] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:37,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:37,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:37,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521295449] [2021-08-27 07:49:37,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:37,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:37,525 INFO L87 Difference]: Start difference. First operand 648 states and 811 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:38,504 INFO L93 Difference]: Finished difference Result 631 states and 782 transitions. [2021-08-27 07:49:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:49:38,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2021-08-27 07:49:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:38,506 INFO L225 Difference]: With dead ends: 631 [2021-08-27 07:49:38,506 INFO L226 Difference]: Without dead ends: 631 [2021-08-27 07:49:38,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 131.2ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-08-27 07:49:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 593. [2021-08-27 07:49:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 472 states have (on average 1.2372881355932204) internal successors, (584), 480 states have internal predecessors, (584), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (81), 68 states have call predecessors, (81), 60 states have call successors, (81) [2021-08-27 07:49:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2021-08-27 07:49:38,514 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 64 [2021-08-27 07:49:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:38,514 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2021-08-27 07:49:38,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2021-08-27 07:49:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-27 07:49:38,516 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:38,516 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:38,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-27 07:49:38,516 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:38,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1979839065, now seen corresponding path program 1 times [2021-08-27 07:49:38,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:38,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300190590] [2021-08-27 07:49:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:38,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-08-27 07:49:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:38,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:38,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300190590] [2021-08-27 07:49:38,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300190590] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:38,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:38,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:49:38,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259742474] [2021-08-27 07:49:38,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:49:38,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:49:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:38,769 INFO L87 Difference]: Start difference. First operand 593 states and 733 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:40,250 INFO L93 Difference]: Finished difference Result 635 states and 782 transitions. [2021-08-27 07:49:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:49:40,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2021-08-27 07:49:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:40,253 INFO L225 Difference]: With dead ends: 635 [2021-08-27 07:49:40,253 INFO L226 Difference]: Without dead ends: 617 [2021-08-27 07:49:40,253 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 263.8ms TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-08-27 07:49:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-08-27 07:49:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2021-08-27 07:49:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 469 states have (on average 1.2388059701492538) internal successors, (581), 478 states have internal predecessors, (581), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (80), 67 states have call predecessors, (80), 60 states have call successors, (80) [2021-08-27 07:49:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 729 transitions. [2021-08-27 07:49:40,262 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 729 transitions. Word has length 59 [2021-08-27 07:49:40,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:40,263 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 729 transitions. [2021-08-27 07:49:40,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:40,263 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 729 transitions. [2021-08-27 07:49:40,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 07:49:40,264 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:40,264 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:40,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-27 07:49:40,264 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:40,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:40,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1574122508, now seen corresponding path program 1 times [2021-08-27 07:49:40,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:40,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435169215] [2021-08-27 07:49:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:40,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-08-27 07:49:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:40,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:40,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435169215] [2021-08-27 07:49:40,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435169215] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:40,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:40,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-27 07:49:40,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842889293] [2021-08-27 07:49:40,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 07:49:40,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:40,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 07:49:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:40,476 INFO L87 Difference]: Start difference. First operand 590 states and 729 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:41,745 INFO L93 Difference]: Finished difference Result 628 states and 773 transitions. [2021-08-27 07:49:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:49:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2021-08-27 07:49:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:41,747 INFO L225 Difference]: With dead ends: 628 [2021-08-27 07:49:41,747 INFO L226 Difference]: Without dead ends: 613 [2021-08-27 07:49:41,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-08-27 07:49:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 586. [2021-08-27 07:49:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 466 states have (on average 1.238197424892704) internal successors, (577), 475 states have internal predecessors, (577), 67 states have call successors, (67), 45 states have call predecessors, (67), 52 states have return successors, (79), 66 states have call predecessors, (79), 59 states have call successors, (79) [2021-08-27 07:49:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 723 transitions. [2021-08-27 07:49:41,755 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 723 transitions. Word has length 58 [2021-08-27 07:49:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:41,755 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 723 transitions. [2021-08-27 07:49:41,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 723 transitions. [2021-08-27 07:49:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 07:49:41,756 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:41,756 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:41,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-27 07:49:41,757 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:41,757 INFO L82 PathProgramCache]: Analyzing trace with hash 173553176, now seen corresponding path program 1 times [2021-08-27 07:49:41,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:41,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268527653] [2021-08-27 07:49:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:41,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-08-27 07:49:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-08-27 07:49:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:41,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:41,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268527653] [2021-08-27 07:49:41,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268527653] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:41,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:41,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:41,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46166463] [2021-08-27 07:49:41,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:41,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:41,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:41,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:41,961 INFO L87 Difference]: Start difference. First operand 586 states and 723 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:43,256 INFO L93 Difference]: Finished difference Result 641 states and 785 transitions. [2021-08-27 07:49:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:43,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2021-08-27 07:49:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:43,267 INFO L225 Difference]: With dead ends: 641 [2021-08-27 07:49:43,267 INFO L226 Difference]: Without dead ends: 620 [2021-08-27 07:49:43,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 198.0ms TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-08-27 07:49:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 581. [2021-08-27 07:49:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 463 states have (on average 1.2354211663066954) internal successors, (572), 471 states have internal predecessors, (572), 66 states have call successors, (66), 45 states have call predecessors, (66), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2021-08-27 07:49:43,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 715 transitions. [2021-08-27 07:49:43,283 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 715 transitions. Word has length 60 [2021-08-27 07:49:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:43,284 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 715 transitions. [2021-08-27 07:49:43,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:43,284 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 715 transitions. [2021-08-27 07:49:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-27 07:49:43,285 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:43,285 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:49:43,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-27 07:49:43,286 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:43,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:43,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1503037677, now seen corresponding path program 1 times [2021-08-27 07:49:43,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:43,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303268513] [2021-08-27 07:49:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:43,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:49:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:49:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:49:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:43,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:43,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303268513] [2021-08-27 07:49:43,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303268513] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:43,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:43,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:43,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352175567] [2021-08-27 07:49:43,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:43,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:43,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:43,522 INFO L87 Difference]: Start difference. First operand 581 states and 715 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:49:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:44,769 INFO L93 Difference]: Finished difference Result 614 states and 756 transitions. [2021-08-27 07:49:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:44,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-08-27 07:49:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:44,771 INFO L225 Difference]: With dead ends: 614 [2021-08-27 07:49:44,771 INFO L226 Difference]: Without dead ends: 614 [2021-08-27 07:49:44,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 414.6ms TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:49:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-08-27 07:49:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 581. [2021-08-27 07:49:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 463 states have (on average 1.2311015118790496) internal successors, (570), 471 states have internal predecessors, (570), 66 states have call successors, (66), 45 states have call predecessors, (66), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2021-08-27 07:49:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 713 transitions. [2021-08-27 07:49:44,778 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 713 transitions. Word has length 68 [2021-08-27 07:49:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:44,779 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 713 transitions. [2021-08-27 07:49:44,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:49:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 713 transitions. [2021-08-27 07:49:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:49:44,780 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:44,780 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:44,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-27 07:49:44,780 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:44,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:44,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1251398362, now seen corresponding path program 1 times [2021-08-27 07:49:44,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:44,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426453065] [2021-08-27 07:49:44,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:44,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:45,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:45,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426453065] [2021-08-27 07:49:45,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426453065] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:45,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:45,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:45,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869443509] [2021-08-27 07:49:45,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:45,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:45,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:45,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:45,004 INFO L87 Difference]: Start difference. First operand 581 states and 713 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:46,323 INFO L93 Difference]: Finished difference Result 603 states and 740 transitions. [2021-08-27 07:49:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:49:46,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2021-08-27 07:49:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:46,328 INFO L225 Difference]: With dead ends: 603 [2021-08-27 07:49:46,328 INFO L226 Difference]: Without dead ends: 600 [2021-08-27 07:49:46,328 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 221.4ms TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-08-27 07:49:46,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-08-27 07:49:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2021-08-27 07:49:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 457 states have (on average 1.2341356673960613) internal successors, (564), 466 states have internal predecessors, (564), 65 states have call successors, (65), 45 states have call predecessors, (65), 50 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2021-08-27 07:49:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 703 transitions. [2021-08-27 07:49:46,356 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 703 transitions. Word has length 63 [2021-08-27 07:49:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:46,356 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 703 transitions. [2021-08-27 07:49:46,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 703 transitions. [2021-08-27 07:49:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:49:46,359 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:46,359 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:46,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-27 07:49:46,359 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:46,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:46,360 INFO L82 PathProgramCache]: Analyzing trace with hash -563960348, now seen corresponding path program 1 times [2021-08-27 07:49:46,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:46,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574975256] [2021-08-27 07:49:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:46,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:49:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:46,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:46,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574975256] [2021-08-27 07:49:46,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574975256] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:46,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:46,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:49:46,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878070060] [2021-08-27 07:49:46,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:49:46,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:46,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:49:46,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:49:46,589 INFO L87 Difference]: Start difference. First operand 573 states and 703 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:47,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:47,768 INFO L93 Difference]: Finished difference Result 603 states and 739 transitions. [2021-08-27 07:49:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:49:47,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2021-08-27 07:49:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:47,770 INFO L225 Difference]: With dead ends: 603 [2021-08-27 07:49:47,770 INFO L226 Difference]: Without dead ends: 603 [2021-08-27 07:49:47,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 265.2ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-08-27 07:49:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 577. [2021-08-27 07:49:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 460 states have (on average 1.232608695652174) internal successors, (567), 469 states have internal predecessors, (567), 65 states have call successors, (65), 45 states have call predecessors, (65), 51 states have return successors, (75), 63 states have call predecessors, (75), 57 states have call successors, (75) [2021-08-27 07:49:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 707 transitions. [2021-08-27 07:49:47,784 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 707 transitions. Word has length 63 [2021-08-27 07:49:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:47,784 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 707 transitions. [2021-08-27 07:49:47,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 707 transitions. [2021-08-27 07:49:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:49:47,785 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:47,786 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:47,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-27 07:49:47,787 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:47,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1715837219, now seen corresponding path program 1 times [2021-08-27 07:49:47,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:47,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920272729] [2021-08-27 07:49:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:47,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:49:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:48,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:49:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:48,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:48,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920272729] [2021-08-27 07:49:48,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920272729] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:48,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:48,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:48,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078663207] [2021-08-27 07:49:48,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:48,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:48,033 INFO L87 Difference]: Start difference. First operand 577 states and 707 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:49,347 INFO L93 Difference]: Finished difference Result 586 states and 717 transitions. [2021-08-27 07:49:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2021-08-27 07:49:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:49,349 INFO L225 Difference]: With dead ends: 586 [2021-08-27 07:49:49,349 INFO L226 Difference]: Without dead ends: 586 [2021-08-27 07:49:49,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 284.1ms TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-08-27 07:49:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2021-08-27 07:49:49,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 563. [2021-08-27 07:49:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 448 states have (on average 1.2276785714285714) internal successors, (550), 456 states have internal predecessors, (550), 64 states have call successors, (64), 45 states have call predecessors, (64), 50 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2021-08-27 07:49:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 688 transitions. [2021-08-27 07:49:49,356 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 688 transitions. Word has length 63 [2021-08-27 07:49:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:49,357 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 688 transitions. [2021-08-27 07:49:49,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:49:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 688 transitions. [2021-08-27 07:49:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:49,358 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:49,358 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:49,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-27 07:49:49,359 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:49,359 INFO L82 PathProgramCache]: Analyzing trace with hash 334675591, now seen corresponding path program 1 times [2021-08-27 07:49:49,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:49,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047701578] [2021-08-27 07:49:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:49,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-08-27 07:49:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:49:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:49,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:49,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047701578] [2021-08-27 07:49:49,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047701578] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:49,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:49,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:49:49,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144682499] [2021-08-27 07:49:49,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:49:49,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:49,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:49:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:49,581 INFO L87 Difference]: Start difference. First operand 563 states and 688 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:51,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:51,229 INFO L93 Difference]: Finished difference Result 852 states and 1008 transitions. [2021-08-27 07:49:51,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-27 07:49:51,230 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-08-27 07:49:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:51,231 INFO L225 Difference]: With dead ends: 852 [2021-08-27 07:49:51,231 INFO L226 Difference]: Without dead ends: 848 [2021-08-27 07:49:51,232 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 435.0ms TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2021-08-27 07:49:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2021-08-27 07:49:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 719. [2021-08-27 07:49:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 580 states have (on average 1.2086206896551723) internal successors, (701), 588 states have internal predecessors, (701), 74 states have call successors, (74), 56 states have call predecessors, (74), 64 states have return successors, (89), 75 states have call predecessors, (89), 67 states have call successors, (89) [2021-08-27 07:49:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 864 transitions. [2021-08-27 07:49:51,239 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 864 transitions. Word has length 64 [2021-08-27 07:49:51,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:51,239 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 864 transitions. [2021-08-27 07:49:51,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:51,239 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 864 transitions. [2021-08-27 07:49:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:51,241 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:51,241 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:51,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-27 07:49:51,241 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1966146999, now seen corresponding path program 1 times [2021-08-27 07:49:51,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:51,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699872693] [2021-08-27 07:49:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:51,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-08-27 07:49:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:49:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:51,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:51,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699872693] [2021-08-27 07:49:51,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699872693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:51,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:51,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:49:51,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181706300] [2021-08-27 07:49:51,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:49:51,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:51,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:49:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:51,460 INFO L87 Difference]: Start difference. First operand 719 states and 864 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:52,473 INFO L93 Difference]: Finished difference Result 754 states and 909 transitions. [2021-08-27 07:49:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:52,474 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-08-27 07:49:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:52,475 INFO L225 Difference]: With dead ends: 754 [2021-08-27 07:49:52,476 INFO L226 Difference]: Without dead ends: 754 [2021-08-27 07:49:52,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 191.0ms TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2021-08-27 07:49:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 692. [2021-08-27 07:49:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 558 states have (on average 1.2114695340501793) internal successors, (676), 566 states have internal predecessors, (676), 72 states have call successors, (72), 54 states have call predecessors, (72), 61 states have return successors, (86), 72 states have call predecessors, (86), 65 states have call successors, (86) [2021-08-27 07:49:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 834 transitions. [2021-08-27 07:49:52,484 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 834 transitions. Word has length 64 [2021-08-27 07:49:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:52,485 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 834 transitions. [2021-08-27 07:49:52,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 07:49:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 834 transitions. [2021-08-27 07:49:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:49:52,486 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:52,486 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:52,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-27 07:49:52,487 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:52,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:52,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1412890612, now seen corresponding path program 1 times [2021-08-27 07:49:52,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:52,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446300564] [2021-08-27 07:49:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:52,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:52,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:52,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446300564] [2021-08-27 07:49:52,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446300564] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:52,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:52,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:49:52,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185840461] [2021-08-27 07:49:52,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:49:52,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:49:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:52,711 INFO L87 Difference]: Start difference. First operand 692 states and 834 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:53,987 INFO L93 Difference]: Finished difference Result 763 states and 917 transitions. [2021-08-27 07:49:53,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:53,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2021-08-27 07:49:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:53,989 INFO L225 Difference]: With dead ends: 763 [2021-08-27 07:49:53,989 INFO L226 Difference]: Without dead ends: 745 [2021-08-27 07:49:53,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 176.3ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-08-27 07:49:53,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 688. [2021-08-27 07:49:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 555 states have (on average 1.2108108108108109) internal successors, (672), 563 states have internal predecessors, (672), 71 states have call successors, (71), 54 states have call predecessors, (71), 61 states have return successors, (85), 71 states have call predecessors, (85), 64 states have call successors, (85) [2021-08-27 07:49:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 828 transitions. [2021-08-27 07:49:53,996 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 828 transitions. Word has length 63 [2021-08-27 07:49:53,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:53,996 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 828 transitions. [2021-08-27 07:49:53,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 828 transitions. [2021-08-27 07:49:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:49:53,997 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:53,998 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:49:53,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-27 07:49:53,998 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:53,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1873715283, now seen corresponding path program 1 times [2021-08-27 07:49:53,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:53,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660246771] [2021-08-27 07:49:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:53,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:49:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:49:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:49:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:54,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:54,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660246771] [2021-08-27 07:49:54,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660246771] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:54,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:54,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-27 07:49:54,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454788716] [2021-08-27 07:49:54,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 07:49:54,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:54,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 07:49:54,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:49:54,209 INFO L87 Difference]: Start difference. First operand 688 states and 828 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:49:55,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:55,027 INFO L93 Difference]: Finished difference Result 787 states and 950 transitions. [2021-08-27 07:49:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:49:55,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-08-27 07:49:55,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:55,029 INFO L225 Difference]: With dead ends: 787 [2021-08-27 07:49:55,030 INFO L226 Difference]: Without dead ends: 787 [2021-08-27 07:49:55,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 221.2ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:49:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-08-27 07:49:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 688. [2021-08-27 07:49:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 555 states have (on average 1.2108108108108109) internal successors, (672), 563 states have internal predecessors, (672), 71 states have call successors, (71), 54 states have call predecessors, (71), 61 states have return successors, (85), 71 states have call predecessors, (85), 64 states have call successors, (85) [2021-08-27 07:49:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 828 transitions. [2021-08-27 07:49:55,038 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 828 transitions. Word has length 71 [2021-08-27 07:49:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:55,038 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 828 transitions. [2021-08-27 07:49:55,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:49:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 828 transitions. [2021-08-27 07:49:55,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:49:55,040 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:55,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:49:55,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-27 07:49:55,040 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:55,041 INFO L82 PathProgramCache]: Analyzing trace with hash -427216749, now seen corresponding path program 1 times [2021-08-27 07:49:55,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:55,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126055258] [2021-08-27 07:49:55,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:55,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:49:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:49:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:49:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:49:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:55,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:55,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126055258] [2021-08-27 07:49:55,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126055258] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:55,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:55,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:49:55,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096803949] [2021-08-27 07:49:55,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:49:55,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:55,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:49:55,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:49:55,273 INFO L87 Difference]: Start difference. First operand 688 states and 828 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:49:56,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:56,489 INFO L93 Difference]: Finished difference Result 788 states and 947 transitions. [2021-08-27 07:49:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 07:49:56,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-08-27 07:49:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:56,492 INFO L225 Difference]: With dead ends: 788 [2021-08-27 07:49:56,492 INFO L226 Difference]: Without dead ends: 788 [2021-08-27 07:49:56,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 258.2ms TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-08-27 07:49:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 688. [2021-08-27 07:49:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 555 states have (on average 1.2072072072072073) internal successors, (670), 563 states have internal predecessors, (670), 71 states have call successors, (71), 54 states have call predecessors, (71), 61 states have return successors, (85), 71 states have call predecessors, (85), 64 states have call successors, (85) [2021-08-27 07:49:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 826 transitions. [2021-08-27 07:49:56,499 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 826 transitions. Word has length 71 [2021-08-27 07:49:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:56,499 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 826 transitions. [2021-08-27 07:49:56,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:49:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 826 transitions. [2021-08-27 07:49:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:56,500 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:56,501 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:56,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-27 07:49:56,501 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:56,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1569130029, now seen corresponding path program 1 times [2021-08-27 07:49:56,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:56,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126991209] [2021-08-27 07:49:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:56,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:49:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-08-27 07:49:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:56,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:56,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126991209] [2021-08-27 07:49:56,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126991209] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:56,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:56,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-27 07:49:56,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328938065] [2021-08-27 07:49:56,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 07:49:56,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 07:49:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:49:56,731 INFO L87 Difference]: Start difference. First operand 688 states and 826 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:57,948 INFO L93 Difference]: Finished difference Result 753 states and 903 transitions. [2021-08-27 07:49:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:57,949 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2021-08-27 07:49:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:57,951 INFO L225 Difference]: With dead ends: 753 [2021-08-27 07:49:57,951 INFO L226 Difference]: Without dead ends: 734 [2021-08-27 07:49:57,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-08-27 07:49:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 644. [2021-08-27 07:49:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 517 states have (on average 1.206963249516441) internal successors, (624), 525 states have internal predecessors, (624), 68 states have call successors, (68), 52 states have call predecessors, (68), 58 states have return successors, (81), 67 states have call predecessors, (81), 61 states have call successors, (81) [2021-08-27 07:49:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 773 transitions. [2021-08-27 07:49:57,959 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 773 transitions. Word has length 64 [2021-08-27 07:49:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:57,959 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 773 transitions. [2021-08-27 07:49:57,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 773 transitions. [2021-08-27 07:49:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:57,961 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:57,961 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:57,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-27 07:49:57,961 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:57,962 INFO L82 PathProgramCache]: Analyzing trace with hash -890337210, now seen corresponding path program 1 times [2021-08-27 07:49:57,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:57,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239479807] [2021-08-27 07:49:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:57,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:49:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:58,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:58,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239479807] [2021-08-27 07:49:58,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239479807] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:58,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:58,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:49:58,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658666607] [2021-08-27 07:49:58,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:49:58,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:49:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:58,188 INFO L87 Difference]: Start difference. First operand 644 states and 773 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:49:59,228 INFO L93 Difference]: Finished difference Result 705 states and 844 transitions. [2021-08-27 07:49:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:49:59,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2021-08-27 07:49:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:49:59,230 INFO L225 Difference]: With dead ends: 705 [2021-08-27 07:49:59,230 INFO L226 Difference]: Without dead ends: 686 [2021-08-27 07:49:59,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 183.9ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:49:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-08-27 07:49:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 639. [2021-08-27 07:49:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 513 states have (on average 1.206627680311891) internal successors, (619), 521 states have internal predecessors, (619), 67 states have call successors, (67), 52 states have call predecessors, (67), 58 states have return successors, (80), 66 states have call predecessors, (80), 60 states have call successors, (80) [2021-08-27 07:49:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 766 transitions. [2021-08-27 07:49:59,237 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 766 transitions. Word has length 64 [2021-08-27 07:49:59,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:49:59,237 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 766 transitions. [2021-08-27 07:49:59,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:49:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 766 transitions. [2021-08-27 07:49:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:49:59,238 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:49:59,239 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:49:59,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-27 07:49:59,239 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:49:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:49:59,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1820448680, now seen corresponding path program 1 times [2021-08-27 07:49:59,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:49:59,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61195972] [2021-08-27 07:49:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:49:59,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:49:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:49:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:49:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:49:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:49:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:49:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:49:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:49:59,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:49:59,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61195972] [2021-08-27 07:49:59,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61195972] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:49:59,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:49:59,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:49:59,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001419101] [2021-08-27 07:49:59,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:49:59,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:49:59,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:49:59,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:49:59,455 INFO L87 Difference]: Start difference. First operand 639 states and 766 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:00,718 INFO L93 Difference]: Finished difference Result 700 states and 837 transitions. [2021-08-27 07:50:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2021-08-27 07:50:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:00,720 INFO L225 Difference]: With dead ends: 700 [2021-08-27 07:50:00,720 INFO L226 Difference]: Without dead ends: 682 [2021-08-27 07:50:00,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 168.3ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-08-27 07:50:00,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 635. [2021-08-27 07:50:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 510 states have (on average 1.2058823529411764) internal successors, (615), 518 states have internal predecessors, (615), 66 states have call successors, (66), 52 states have call predecessors, (66), 58 states have return successors, (79), 65 states have call predecessors, (79), 59 states have call successors, (79) [2021-08-27 07:50:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 760 transitions. [2021-08-27 07:50:00,728 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 760 transitions. Word has length 64 [2021-08-27 07:50:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:00,729 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 760 transitions. [2021-08-27 07:50:00,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:00,729 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 760 transitions. [2021-08-27 07:50:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-27 07:50:00,730 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:00,730 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:00,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-27 07:50:00,731 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:00,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:00,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1348028696, now seen corresponding path program 1 times [2021-08-27 07:50:00,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:00,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824613192] [2021-08-27 07:50:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:00,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-08-27 07:50:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:00,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:00,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824613192] [2021-08-27 07:50:00,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824613192] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:00,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:00,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-27 07:50:00,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069565565] [2021-08-27 07:50:00,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 07:50:00,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:00,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 07:50:00,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:00,905 INFO L87 Difference]: Start difference. First operand 635 states and 760 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:50:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:01,719 INFO L93 Difference]: Finished difference Result 826 states and 989 transitions. [2021-08-27 07:50:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:50:01,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2021-08-27 07:50:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:01,721 INFO L225 Difference]: With dead ends: 826 [2021-08-27 07:50:01,722 INFO L226 Difference]: Without dead ends: 826 [2021-08-27 07:50:01,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 209.0ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:50:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2021-08-27 07:50:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 756. [2021-08-27 07:50:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 603 states have (on average 1.2023217247097844) internal successors, (725), 613 states have internal predecessors, (725), 79 states have call successors, (79), 62 states have call predecessors, (79), 73 states have return successors, (104), 81 states have call predecessors, (104), 73 states have call successors, (104) [2021-08-27 07:50:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 908 transitions. [2021-08-27 07:50:01,730 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 908 transitions. Word has length 70 [2021-08-27 07:50:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:01,730 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 908 transitions. [2021-08-27 07:50:01,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:50:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 908 transitions. [2021-08-27 07:50:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-27 07:50:01,731 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:01,731 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:01,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-27 07:50:01,732 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:01,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:01,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1831590663, now seen corresponding path program 1 times [2021-08-27 07:50:01,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:01,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110763062] [2021-08-27 07:50:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:01,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-08-27 07:50:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:01,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:01,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110763062] [2021-08-27 07:50:01,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110763062] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:01,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:01,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:50:01,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136138204] [2021-08-27 07:50:01,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:01,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:01,950 INFO L87 Difference]: Start difference. First operand 756 states and 908 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:03,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:03,089 INFO L93 Difference]: Finished difference Result 817 states and 980 transitions. [2021-08-27 07:50:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:03,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2021-08-27 07:50:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:03,091 INFO L225 Difference]: With dead ends: 817 [2021-08-27 07:50:03,091 INFO L226 Difference]: Without dead ends: 777 [2021-08-27 07:50:03,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 169.5ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2021-08-27 07:50:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 730. [2021-08-27 07:50:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 582 states have (on average 1.2010309278350515) internal successors, (699), 592 states have internal predecessors, (699), 76 states have call successors, (76), 60 states have call predecessors, (76), 71 states have return successors, (101), 78 states have call predecessors, (101), 70 states have call successors, (101) [2021-08-27 07:50:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 876 transitions. [2021-08-27 07:50:03,099 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 876 transitions. Word has length 68 [2021-08-27 07:50:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:03,099 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 876 transitions. [2021-08-27 07:50:03,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 876 transitions. [2021-08-27 07:50:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:50:03,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:03,101 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:03,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-27 07:50:03,101 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:03,101 INFO L82 PathProgramCache]: Analyzing trace with hash -2093633698, now seen corresponding path program 1 times [2021-08-27 07:50:03,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:03,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576102192] [2021-08-27 07:50:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:03,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:50:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-08-27 07:50:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:50:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-08-27 07:50:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:03,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:03,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576102192] [2021-08-27 07:50:03,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576102192] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:03,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:03,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-27 07:50:03,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447378927] [2021-08-27 07:50:03,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:50:03,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:50:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:03,372 INFO L87 Difference]: Start difference. First operand 730 states and 876 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:50:04,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:04,660 INFO L93 Difference]: Finished difference Result 787 states and 944 transitions. [2021-08-27 07:50:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 07:50:04,661 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-08-27 07:50:04,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:04,662 INFO L225 Difference]: With dead ends: 787 [2021-08-27 07:50:04,662 INFO L226 Difference]: Without dead ends: 732 [2021-08-27 07:50:04,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 298.2ms TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:50:04,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-08-27 07:50:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 682. [2021-08-27 07:50:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 542 states have (on average 1.1974169741697418) internal successors, (649), 552 states have internal predecessors, (649), 72 states have call successors, (72), 56 states have call predecessors, (72), 67 states have return successors, (95), 74 states have call predecessors, (95), 66 states have call successors, (95) [2021-08-27 07:50:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 816 transitions. [2021-08-27 07:50:04,670 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 816 transitions. Word has length 71 [2021-08-27 07:50:04,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:04,670 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 816 transitions. [2021-08-27 07:50:04,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:50:04,670 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 816 transitions. [2021-08-27 07:50:04,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-08-27 07:50:04,672 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:04,672 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:04,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-08-27 07:50:04,672 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:04,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:04,672 INFO L82 PathProgramCache]: Analyzing trace with hash -894709895, now seen corresponding path program 1 times [2021-08-27 07:50:04,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:04,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901176993] [2021-08-27 07:50:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:04,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-08-27 07:50:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-08-27 07:50:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:04,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:04,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901176993] [2021-08-27 07:50:04,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901176993] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:04,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:04,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:50:04,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977882748] [2021-08-27 07:50:04,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:50:04,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:50:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:04,907 INFO L87 Difference]: Start difference. First operand 682 states and 816 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:50:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:06,087 INFO L93 Difference]: Finished difference Result 717 states and 852 transitions. [2021-08-27 07:50:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 07:50:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82 [2021-08-27 07:50:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:06,090 INFO L225 Difference]: With dead ends: 717 [2021-08-27 07:50:06,090 INFO L226 Difference]: Without dead ends: 717 [2021-08-27 07:50:06,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 625.5ms TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2021-08-27 07:50:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-08-27 07:50:06,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 664. [2021-08-27 07:50:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 528 states have (on average 1.196969696969697) internal successors, (632), 537 states have internal predecessors, (632), 70 states have call successors, (70), 56 states have call predecessors, (70), 65 states have return successors, (84), 71 states have call predecessors, (84), 64 states have call successors, (84) [2021-08-27 07:50:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 786 transitions. [2021-08-27 07:50:06,096 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 786 transitions. Word has length 82 [2021-08-27 07:50:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:06,096 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 786 transitions. [2021-08-27 07:50:06,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (12), 10 states have call predecessors, (12), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:50:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 786 transitions. [2021-08-27 07:50:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-27 07:50:06,098 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:06,098 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:06,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-08-27 07:50:06,098 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1594482170, now seen corresponding path program 1 times [2021-08-27 07:50:06,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:06,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978956248] [2021-08-27 07:50:06,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:06,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-08-27 07:50:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-08-27 07:50:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:06,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:06,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978956248] [2021-08-27 07:50:06,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978956248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:06,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:06,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:50:06,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782557802] [2021-08-27 07:50:06,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:06,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:06,370 INFO L87 Difference]: Start difference. First operand 664 states and 786 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:07,283 INFO L93 Difference]: Finished difference Result 815 states and 1003 transitions. [2021-08-27 07:50:07,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 07:50:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2021-08-27 07:50:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:07,285 INFO L225 Difference]: With dead ends: 815 [2021-08-27 07:50:07,285 INFO L226 Difference]: Without dead ends: 815 [2021-08-27 07:50:07,285 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 352.8ms TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-08-27 07:50:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-08-27 07:50:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 628. [2021-08-27 07:50:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 504 states have (on average 1.1964285714285714) internal successors, (603), 511 states have internal predecessors, (603), 63 states have call successors, (63), 50 states have call predecessors, (63), 60 states have return successors, (74), 67 states have call predecessors, (74), 58 states have call successors, (74) [2021-08-27 07:50:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 740 transitions. [2021-08-27 07:50:07,292 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 740 transitions. Word has length 83 [2021-08-27 07:50:07,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:07,292 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 740 transitions. [2021-08-27 07:50:07,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 740 transitions. [2021-08-27 07:50:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-27 07:50:07,293 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:07,294 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:07,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-08-27 07:50:07,294 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1775350014, now seen corresponding path program 1 times [2021-08-27 07:50:07,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:07,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69732520] [2021-08-27 07:50:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:07,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-08-27 07:50:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:07,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:07,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69732520] [2021-08-27 07:50:07,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69732520] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:07,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:07,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-27 07:50:07,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328710348] [2021-08-27 07:50:07,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 07:50:07,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:07,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 07:50:07,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:07,611 INFO L87 Difference]: Start difference. First operand 628 states and 740 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:08,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:08,905 INFO L93 Difference]: Finished difference Result 735 states and 864 transitions. [2021-08-27 07:50:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 07:50:08,906 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2021-08-27 07:50:08,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:08,907 INFO L225 Difference]: With dead ends: 735 [2021-08-27 07:50:08,907 INFO L226 Difference]: Without dead ends: 717 [2021-08-27 07:50:08,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 377.3ms TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-08-27 07:50:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-08-27 07:50:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 636. [2021-08-27 07:50:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 511 states have (on average 1.1937377690802349) internal successors, (610), 518 states have internal predecessors, (610), 63 states have call successors, (63), 50 states have call predecessors, (63), 61 states have return successors, (77), 68 states have call predecessors, (77), 58 states have call successors, (77) [2021-08-27 07:50:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 750 transitions. [2021-08-27 07:50:08,913 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 750 transitions. Word has length 88 [2021-08-27 07:50:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:08,913 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 750 transitions. [2021-08-27 07:50:08,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 750 transitions. [2021-08-27 07:50:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-27 07:50:08,914 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:08,914 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:08,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-08-27 07:50:08,916 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:08,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1427865235, now seen corresponding path program 1 times [2021-08-27 07:50:08,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:08,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670684920] [2021-08-27 07:50:08,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:08,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-08-27 07:50:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-08-27 07:50:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:09,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:09,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670684920] [2021-08-27 07:50:09,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670684920] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:09,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:09,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-27 07:50:09,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918132773] [2021-08-27 07:50:09,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 07:50:09,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:09,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 07:50:09,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:09,196 INFO L87 Difference]: Start difference. First operand 636 states and 750 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:10,091 INFO L93 Difference]: Finished difference Result 735 states and 863 transitions. [2021-08-27 07:50:10,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:50:10,092 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2021-08-27 07:50:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:10,093 INFO L225 Difference]: With dead ends: 735 [2021-08-27 07:50:10,094 INFO L226 Difference]: Without dead ends: 717 [2021-08-27 07:50:10,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 300.2ms TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:50:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-08-27 07:50:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 628. [2021-08-27 07:50:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 504 states have (on average 1.1944444444444444) internal successors, (602), 511 states have internal predecessors, (602), 63 states have call successors, (63), 50 states have call predecessors, (63), 60 states have return successors, (74), 67 states have call predecessors, (74), 58 states have call successors, (74) [2021-08-27 07:50:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 739 transitions. [2021-08-27 07:50:10,114 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 739 transitions. Word has length 89 [2021-08-27 07:50:10,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:10,115 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 739 transitions. [2021-08-27 07:50:10,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2021-08-27 07:50:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 739 transitions. [2021-08-27 07:50:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-27 07:50:10,115 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:10,116 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:10,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-08-27 07:50:10,116 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:10,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:10,116 INFO L82 PathProgramCache]: Analyzing trace with hash -516864991, now seen corresponding path program 1 times [2021-08-27 07:50:10,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:10,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401117736] [2021-08-27 07:50:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:10,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-08-27 07:50:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:50:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-08-27 07:50:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:10,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:10,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401117736] [2021-08-27 07:50:10,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401117736] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:10,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:10,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:50:10,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216649473] [2021-08-27 07:50:10,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:50:10,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:10,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:50:10,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:10,358 INFO L87 Difference]: Start difference. First operand 628 states and 739 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 07:50:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:11,470 INFO L93 Difference]: Finished difference Result 775 states and 895 transitions. [2021-08-27 07:50:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 84 [2021-08-27 07:50:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:11,471 INFO L225 Difference]: With dead ends: 775 [2021-08-27 07:50:11,471 INFO L226 Difference]: Without dead ends: 775 [2021-08-27 07:50:11,472 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 323.2ms TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2021-08-27 07:50:11,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-08-27 07:50:11,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 749. [2021-08-27 07:50:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 601 states have (on average 1.1863560732113145) internal successors, (713), 610 states have internal predecessors, (713), 71 states have call successors, (71), 62 states have call predecessors, (71), 76 states have return successors, (86), 77 states have call predecessors, (86), 66 states have call successors, (86) [2021-08-27 07:50:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 870 transitions. [2021-08-27 07:50:11,478 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 870 transitions. Word has length 84 [2021-08-27 07:50:11,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:11,478 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 870 transitions. [2021-08-27 07:50:11,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 07:50:11,479 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 870 transitions. [2021-08-27 07:50:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-27 07:50:11,480 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:11,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:11,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-08-27 07:50:11,480 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:11,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1881717760, now seen corresponding path program 1 times [2021-08-27 07:50:11,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:11,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102943728] [2021-08-27 07:50:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:11,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:50:11,497 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 07:50:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:50:11,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 07:50:11,561 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 07:50:11,562 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-08-27 07:50:11,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 07:50:11,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-08-27 07:50:11,568 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 07:50:11,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 07:50:11 BoogieIcfgContainer [2021-08-27 07:50:11,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 07:50:11,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 07:50:11,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 07:50:11,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 07:50:11,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:48:47" (3/4) ... [2021-08-27 07:50:11,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 07:50:11,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 07:50:11,665 INFO L168 Benchmark]: Toolchain (without parser) took 85893.84 ms. Allocated memory was 58.7 MB in the beginning and 539.0 MB in the end (delta: 480.2 MB). Free memory was 36.0 MB in the beginning and 385.6 MB in the end (delta: -349.7 MB). Peak memory consumption was 131.3 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:11,665 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:50:11,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.79 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 42.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:11,666 INFO L168 Benchmark]: Boogie Preprocessor took 113.68 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:11,666 INFO L168 Benchmark]: RCFGBuilder took 1093.42 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 38.4 MB in the beginning and 65.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:11,666 INFO L168 Benchmark]: TraceAbstraction took 84133.53 ms. Allocated memory was 88.1 MB in the beginning and 539.0 MB in the end (delta: 450.9 MB). Free memory was 64.4 MB in the beginning and 385.6 MB in the end (delta: -321.2 MB). Peak memory consumption was 129.8 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:11,666 INFO L168 Benchmark]: Witness Printer took 3.17 ms. Allocated memory is still 539.0 MB. Free memory is still 385.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:50:11,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.79 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 42.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.68 ms. Allocated memory is still 71.3 MB. Free memory was 42.7 MB in the beginning and 38.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1093.42 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 38.4 MB in the beginning and 65.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 84133.53 ms. Allocated memory was 88.1 MB in the beginning and 539.0 MB in the end (delta: 450.9 MB). Free memory was 64.4 MB in the beginning and 385.6 MB in the end (delta: -321.2 MB). Peak memory consumption was 129.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.17 ms. Allocated memory is still 539.0 MB. Free memory is still 385.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [\old(compRegistered)=260, \old(customIrp)=265, \old(DC)=288, \old(DiskController)=263, \old(Executive)=286, \old(FlConfigCallBack)=268, \old(FloppyDiskPeripheral)=291, \old(FloppyThread)=261, \old(IPC)=274, \old(KernelMode)=270, \old(lowerDriverReturn)=275, \old(MaximumInterfaceType)=292, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=281, \old(MPR1)=283, \old(MPR3)=293, \old(myStatus)=287, \old(NP)=266, \old(PagingMutex)=284, \old(PagingReferenceCount)=289, \old(pended)=285, \old(s)=271, \old(setEventCalled)=262, \old(SKIP1)=269, \old(SKIP2)=280, \old(Suspended)=282, \old(UNLOADED)=273, 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] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=-2, irp_choice=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, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L705] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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] [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, 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] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, 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] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-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 TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-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 FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=10, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-10, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-9, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=10, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-10, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-9, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=10, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-10, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-9, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=10, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-10, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-9, UNLOADED=0] [L157] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=10, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=-10, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-9, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, 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] [L265] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=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=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, 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] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, 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] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, 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] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-6, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-6, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=11, 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_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, 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] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, 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] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, 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] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-3, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-7, disketteExtension__InterfaceString__Buffer=-8, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=-6, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, 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] [L767] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=-3, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, 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=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-4, tmp_ndt_2=0, tmp_ndt_3=-5, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: 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 31 procedures, 397 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 83999.5ms, OverallIterations: 56, TraceHistogramMax: 1, EmptinessCheckTime: 73.8ms, AutomataDifference: 70365.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23785 SDtfs, 32622 SDslu, 44209 SDs, 0 SdLazy, 84306 SolverSat, 9963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50285.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1227 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 720 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 15551.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=20, InterpolantAutomatonStates: 645, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 776.8ms AutomataMinimizationTime, 55 MinimizatonAttempts, 3339 StatesRemovedByMinimization, 55 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 190.2ms SsaConstructionTime, 539.3ms SatisfiabilityAnalysisTime, 11502.8ms InterpolantComputationTime, 3100 NumberOfCodeBlocks, 3100 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 2960 ConstructedInterpolants, 0 QuantifiedInterpolants, 16219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 55 InterpolantComputations, 55 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 [2021-08-27 07:50:11,707 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 07:50:13,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 07:50:13,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 07:50:13,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 07:50:13,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 07:50:13,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 07:50:13,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 07:50:13,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 07:50:13,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 07:50:13,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 07:50:13,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 07:50:13,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 07:50:13,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 07:50:13,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 07:50:13,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 07:50:13,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 07:50:13,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 07:50:13,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 07:50:13,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 07:50:13,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 07:50:13,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 07:50:13,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 07:50:13,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 07:50:13,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 07:50:13,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 07:50:13,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 07:50:13,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 07:50:13,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 07:50:13,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 07:50:13,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 07:50:13,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 07:50:13,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 07:50:13,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 07:50:13,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 07:50:13,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 07:50:13,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 07:50:13,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 07:50:13,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 07:50:13,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 07:50:13,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 07:50:13,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 07:50:13,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 07:50:13,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 07:50:13,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 07:50:13,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 07:50:13,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 07:50:13,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 07:50:13,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 07:50:13,707 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 07:50:13,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 07:50:13,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 07:50:13,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 07:50:13,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 07:50:13,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 07:50:13,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 07:50:13,709 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 07:50:13,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 07:50:13,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 07:50:13,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 07:50:13,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 07:50:13,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 07:50:13,717 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 07:50:13,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 07:50:13,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 07:50:13,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 07:50:13,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 07:50:13,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 07:50:13,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:13,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 07:50:13,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 07:50:13,719 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 07:50:13,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 07:50:13,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 07:50:13,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 07:50:13,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5e490cdb414af150c1a875602a078da9d38c5d6 [2021-08-27 07:50:14,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 07:50:14,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 07:50:14,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 07:50:14,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 07:50:14,067 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 07:50:14,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-08-27 07:50:14,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652acd18d/163eddfdf74344fab501a7e70b2b21e9/FLAGc2f277876 [2021-08-27 07:50:14,624 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 07:50:14,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-08-27 07:50:14,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652acd18d/163eddfdf74344fab501a7e70b2b21e9/FLAGc2f277876 [2021-08-27 07:50:15,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652acd18d/163eddfdf74344fab501a7e70b2b21e9 [2021-08-27 07:50:15,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 07:50:15,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 07:50:15,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:15,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 07:50:15,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 07:50:15,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fe9efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15, skipping insertion in model container [2021-08-27 07:50:15,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 07:50:15,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 07:50:15,499 WARN L228 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_simpl4.cil-1.c[48581,48594] [2021-08-27 07:50:15,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:15,512 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 07:50:15,609 WARN L228 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_simpl4.cil-1.c[48581,48594] [2021-08-27 07:50:15,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:15,630 INFO L208 MainTranslator]: Completed translation [2021-08-27 07:50:15,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15 WrapperNode [2021-08-27 07:50:15,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:15,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 07:50:15,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 07:50:15,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 07:50:15,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 07:50:15,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 07:50:15,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 07:50:15,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 07:50:15,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (1/1) ... [2021-08-27 07:50:15,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 07:50:15,781 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) [2021-08-27 07:50:15,792 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 [2021-08-27 07:50:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 07:50:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 07:50:15,817 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 07:50:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-27 07:50:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2021-08-27 07:50:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2021-08-27 07:50:15,818 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-27 07:50:15,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-27 07:50:15,820 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2021-08-27 07:50:15,821 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2021-08-27 07:50:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2021-08-27 07:50:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2021-08-27 07:50:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2021-08-27 07:50:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-27 07:50:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 07:50:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-27 07:50:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2021-08-27 07:50:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-27 07:50:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2021-08-27 07:50:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 07:50:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-27 07:50:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 07:50:16,134 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,158 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,165 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,165 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,179 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-08-27 07:50:16,391 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-08-27 07:50:16,394 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,485 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-08-27 07:50:16,485 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-08-27 07:50:16,496 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-27 07:50:16,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-27 07:50:16,561 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,584 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,584 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,585 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,592 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,593 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,594 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,602 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,602 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,635 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:50:16,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:50:16,662 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,793 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-08-27 07:50:16,793 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-08-27 07:50:16,861 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,866 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,866 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,866 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,879 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,879 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,880 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:16,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-08-27 07:50:16,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-08-27 07:50:16,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 07:50:16,907 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 07:50:16,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:16 BoogieIcfgContainer [2021-08-27 07:50:16,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 07:50:16,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 07:50:16,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 07:50:16,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 07:50:16,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 07:50:15" (1/3) ... [2021-08-27 07:50:16,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce3f351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:16, skipping insertion in model container [2021-08-27 07:50:16,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:15" (2/3) ... [2021-08-27 07:50:16,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce3f351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:16, skipping insertion in model container [2021-08-27 07:50:16,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:16" (3/3) ... [2021-08-27 07:50:16,919 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-08-27 07:50:16,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 07:50:16,925 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-27 07:50:16,951 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 07:50:16,956 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 07:50:16,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-27 07:50:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 316 states have internal predecessors, (424), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2021-08-27 07:50:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 07:50:16,980 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:16,981 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:16,981 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:16,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:16,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1731487075, now seen corresponding path program 1 times [2021-08-27 07:50:16,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:16,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76118724] [2021-08-27 07:50:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:16,996 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:16,998 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) [2021-08-27 07:50:17,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 07:50:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:17,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-27 07:50:17,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:17,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:17,537 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:17,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76118724] [2021-08-27 07:50:17,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76118724] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:17,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:17,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-08-27 07:50:17,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140701467] [2021-08-27 07:50:17,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 07:50:17,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 07:50:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 07:50:17,557 INFO L87 Difference]: Start difference. First operand has 391 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 316 states have internal predecessors, (424), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:17,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:17,603 INFO L93 Difference]: Finished difference Result 388 states and 541 transitions. [2021-08-27 07:50:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 07:50:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 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 15 [2021-08-27 07:50:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:17,624 INFO L225 Difference]: With dead ends: 388 [2021-08-27 07:50:17,624 INFO L226 Difference]: Without dead ends: 382 [2021-08-27 07:50:17,625 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 07:50:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-08-27 07:50:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2021-08-27 07:50:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.4346289752650176) internal successors, (406), 308 states have internal predecessors, (406), 72 states have call successors, (72), 28 states have call predecessors, (72), 26 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-08-27 07:50:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 527 transitions. [2021-08-27 07:50:17,694 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 527 transitions. Word has length 15 [2021-08-27 07:50:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:17,695 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 527 transitions. [2021-08-27 07:50:17,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 527 transitions. [2021-08-27 07:50:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 07:50:17,696 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:17,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:17,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:17,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:17,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:17,912 INFO L82 PathProgramCache]: Analyzing trace with hash -856435882, now seen corresponding path program 1 times [2021-08-27 07:50:17,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:17,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571458287] [2021-08-27 07:50:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:17,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:17,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:17,914 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) [2021-08-27 07:50:17,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 07:50:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:18,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:18,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:18,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:18,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:18,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571458287] [2021-08-27 07:50:18,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571458287] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:18,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:18,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 07:50:18,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811531123] [2021-08-27 07:50:18,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:50:18,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:18,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:50:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:18,335 INFO L87 Difference]: Start difference. First operand 382 states and 527 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 07:50:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:18,448 INFO L93 Difference]: Finished difference Result 382 states and 526 transitions. [2021-08-27 07:50:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:50:18,455 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), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2021-08-27 07:50:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:18,458 INFO L225 Difference]: With dead ends: 382 [2021-08-27 07:50:18,458 INFO L226 Difference]: Without dead ends: 382 [2021-08-27 07:50:18,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:18,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-08-27 07:50:18,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2021-08-27 07:50:18,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.431095406360424) internal successors, (405), 308 states have internal predecessors, (405), 72 states have call successors, (72), 28 states have call predecessors, (72), 26 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2021-08-27 07:50:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2021-08-27 07:50:18,490 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2021-08-27 07:50:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:18,491 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2021-08-27 07:50:18,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 07:50:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2021-08-27 07:50:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 07:50:18,492 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:18,492 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:18,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-27 07:50:18,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:18,705 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:18,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:18,706 INFO L82 PathProgramCache]: Analyzing trace with hash 566376368, now seen corresponding path program 1 times [2021-08-27 07:50:18,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:18,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39861550] [2021-08-27 07:50:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:18,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:18,708 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) [2021-08-27 07:50:18,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 07:50:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:18,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 07:50:18,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:19,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:19,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:19,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39861550] [2021-08-27 07:50:19,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39861550] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:19,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:19,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-27 07:50:19,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713530130] [2021-08-27 07:50:19,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:19,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:19,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:19,264 INFO L87 Difference]: Start difference. First operand 382 states and 526 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:19,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:19,821 INFO L93 Difference]: Finished difference Result 541 states and 734 transitions. [2021-08-27 07:50:19,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:19,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2021-08-27 07:50:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:19,833 INFO L225 Difference]: With dead ends: 541 [2021-08-27 07:50:19,833 INFO L226 Difference]: Without dead ends: 540 [2021-08-27 07:50:19,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-08-27 07:50:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 521. [2021-08-27 07:50:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 401 states have (on average 1.3566084788029926) internal successors, (544), 406 states have internal predecessors, (544), 79 states have call successors, (79), 41 states have call predecessors, (79), 40 states have return successors, (86), 75 states have call predecessors, (86), 66 states have call successors, (86) [2021-08-27 07:50:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 709 transitions. [2021-08-27 07:50:19,883 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 709 transitions. Word has length 25 [2021-08-27 07:50:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:19,883 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 709 transitions. [2021-08-27 07:50:19,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 709 transitions. [2021-08-27 07:50:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 07:50:19,884 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:19,884 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:19,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 07:50:20,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:20,093 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:20,094 INFO L82 PathProgramCache]: Analyzing trace with hash 974475484, now seen corresponding path program 1 times [2021-08-27 07:50:20,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:20,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054886509] [2021-08-27 07:50:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:20,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:20,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:20,098 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) [2021-08-27 07:50:20,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 07:50:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:20,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:20,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:20,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:20,597 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:20,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054886509] [2021-08-27 07:50:20,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054886509] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:20,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:20,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:20,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647679371] [2021-08-27 07:50:20,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:20,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:20,600 INFO L87 Difference]: Start difference. First operand 521 states and 709 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:20,638 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2021-08-27 07:50:20,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:20,638 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), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-08-27 07:50:20,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:20,641 INFO L225 Difference]: With dead ends: 625 [2021-08-27 07:50:20,641 INFO L226 Difference]: Without dead ends: 625 [2021-08-27 07:50:20,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-08-27 07:50:20,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 585. [2021-08-27 07:50:20,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 452 states have (on average 1.3539823008849559) internal successors, (612), 465 states have internal predecessors, (612), 83 states have call successors, (83), 46 states have call predecessors, (83), 49 states have return successors, (97), 78 states have call predecessors, (97), 72 states have call successors, (97) [2021-08-27 07:50:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 792 transitions. [2021-08-27 07:50:20,673 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 792 transitions. Word has length 31 [2021-08-27 07:50:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:20,673 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 792 transitions. [2021-08-27 07:50:20,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 792 transitions. [2021-08-27 07:50:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-27 07:50:20,680 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:20,680 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:20,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:20,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:20,881 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:20,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:20,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1211701176, now seen corresponding path program 1 times [2021-08-27 07:50:20,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:20,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778537765] [2021-08-27 07:50:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:20,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:20,883 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) [2021-08-27 07:50:20,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 07:50:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:21,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:21,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:21,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:21,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:21,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778537765] [2021-08-27 07:50:21,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778537765] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:21,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:21,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:21,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017412877] [2021-08-27 07:50:21,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:21,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:21,425 INFO L87 Difference]: Start difference. First operand 585 states and 792 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:21,454 INFO L93 Difference]: Finished difference Result 796 states and 1075 transitions. [2021-08-27 07:50:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-08-27 07:50:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:21,458 INFO L225 Difference]: With dead ends: 796 [2021-08-27 07:50:21,458 INFO L226 Difference]: Without dead ends: 796 [2021-08-27 07:50:21,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2021-08-27 07:50:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 767. [2021-08-27 07:50:21,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 603 states have (on average 1.3449419568822554) internal successors, (811), 612 states have internal predecessors, (811), 100 states have call successors, (100), 61 states have call predecessors, (100), 63 states have return successors, (131), 97 states have call predecessors, (131), 91 states have call successors, (131) [2021-08-27 07:50:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1042 transitions. [2021-08-27 07:50:21,480 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1042 transitions. Word has length 33 [2021-08-27 07:50:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:21,480 INFO L470 AbstractCegarLoop]: Abstraction has 767 states and 1042 transitions. [2021-08-27 07:50:21,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1042 transitions. [2021-08-27 07:50:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 07:50:21,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:21,482 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:21,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:21,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:21,695 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:21,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:21,695 INFO L82 PathProgramCache]: Analyzing trace with hash -367463930, now seen corresponding path program 1 times [2021-08-27 07:50:21,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:21,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838016260] [2021-08-27 07:50:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:21,696 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:21,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:21,738 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) [2021-08-27 07:50:21,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 07:50:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:22,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:22,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:22,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:22,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838016260] [2021-08-27 07:50:22,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838016260] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:22,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:22,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855716034] [2021-08-27 07:50:22,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:22,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:22,285 INFO L87 Difference]: Start difference. First operand 767 states and 1042 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:22,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:22,370 INFO L93 Difference]: Finished difference Result 806 states and 1089 transitions. [2021-08-27 07:50:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:22,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2021-08-27 07:50:22,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:22,374 INFO L225 Difference]: With dead ends: 806 [2021-08-27 07:50:22,375 INFO L226 Difference]: Without dead ends: 806 [2021-08-27 07:50:22,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:22,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-08-27 07:50:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 802. [2021-08-27 07:50:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 635 states have (on average 1.3417322834645669) internal successors, (852), 642 states have internal predecessors, (852), 100 states have call successors, (100), 61 states have call predecessors, (100), 66 states have return successors, (134), 100 states have call predecessors, (134), 91 states have call successors, (134) [2021-08-27 07:50:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1086 transitions. [2021-08-27 07:50:22,395 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1086 transitions. Word has length 39 [2021-08-27 07:50:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:22,396 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1086 transitions. [2021-08-27 07:50:22,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1086 transitions. [2021-08-27 07:50:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 07:50:22,397 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:22,397 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:22,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:22,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:22,611 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:22,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1057168729, now seen corresponding path program 1 times [2021-08-27 07:50:22,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:22,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350584230] [2021-08-27 07:50:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:22,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:22,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:22,613 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) [2021-08-27 07:50:22,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 07:50:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:22,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:23,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:23,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:23,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350584230] [2021-08-27 07:50:23,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350584230] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:23,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:23,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-27 07:50:23,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123484824] [2021-08-27 07:50:23,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:23,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:23,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:23,241 INFO L87 Difference]: Start difference. First operand 802 states and 1086 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:23,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:23,645 INFO L93 Difference]: Finished difference Result 814 states and 1102 transitions. [2021-08-27 07:50:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:23,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2021-08-27 07:50:23,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:23,650 INFO L225 Difference]: With dead ends: 814 [2021-08-27 07:50:23,650 INFO L226 Difference]: Without dead ends: 814 [2021-08-27 07:50:23,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:23,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-08-27 07:50:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 813. [2021-08-27 07:50:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 646 states have (on average 1.3405572755417956) internal successors, (866), 652 states have internal predecessors, (866), 100 states have call successors, (100), 62 states have call predecessors, (100), 66 states have return successors, (134), 100 states have call predecessors, (134), 91 states have call successors, (134) [2021-08-27 07:50:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1100 transitions. [2021-08-27 07:50:23,669 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1100 transitions. Word has length 38 [2021-08-27 07:50:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:23,670 INFO L470 AbstractCegarLoop]: Abstraction has 813 states and 1100 transitions. [2021-08-27 07:50:23,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1100 transitions. [2021-08-27 07:50:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 07:50:23,671 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:23,671 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:23,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:23,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:23,890 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:23,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:23,891 INFO L82 PathProgramCache]: Analyzing trace with hash -849786973, now seen corresponding path program 1 times [2021-08-27 07:50:23,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:23,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341719647] [2021-08-27 07:50:23,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:23,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:23,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:23,893 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) [2021-08-27 07:50:23,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 07:50:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:24,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:24,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:24,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:24,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:24,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341719647] [2021-08-27 07:50:24,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341719647] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:24,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:24,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 07:50:24,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137598039] [2021-08-27 07:50:24,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:50:24,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:50:24,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:50:24,666 INFO L87 Difference]: Start difference. First operand 813 states and 1100 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:25,219 INFO L93 Difference]: Finished difference Result 1077 states and 1466 transitions. [2021-08-27 07:50:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:25,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 39 [2021-08-27 07:50:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:25,225 INFO L225 Difference]: With dead ends: 1077 [2021-08-27 07:50:25,225 INFO L226 Difference]: Without dead ends: 1075 [2021-08-27 07:50:25,226 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-08-27 07:50:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 931. [2021-08-27 07:50:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 745 states have (on average 1.3302013422818793) internal successors, (991), 744 states have internal predecessors, (991), 107 states have call successors, (107), 68 states have call predecessors, (107), 78 states have return successors, (158), 120 states have call predecessors, (158), 98 states have call successors, (158) [2021-08-27 07:50:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1256 transitions. [2021-08-27 07:50:25,251 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1256 transitions. Word has length 39 [2021-08-27 07:50:25,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:25,253 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1256 transitions. [2021-08-27 07:50:25,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:25,253 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1256 transitions. [2021-08-27 07:50:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 07:50:25,254 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:25,255 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:25,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:25,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:25,466 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:25,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:25,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1462844719, now seen corresponding path program 1 times [2021-08-27 07:50:25,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:25,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001606956] [2021-08-27 07:50:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:25,468 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:25,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:25,468 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) [2021-08-27 07:50:25,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 07:50:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:25,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:26,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:26,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:26,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001606956] [2021-08-27 07:50:26,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001606956] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:26,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:26,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:26,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56439298] [2021-08-27 07:50:26,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:26,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:26,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:26,318 INFO L87 Difference]: Start difference. First operand 931 states and 1256 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:26,827 INFO L93 Difference]: Finished difference Result 937 states and 1258 transitions. [2021-08-27 07:50:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:26,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 40 [2021-08-27 07:50:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:26,832 INFO L225 Difference]: With dead ends: 937 [2021-08-27 07:50:26,832 INFO L226 Difference]: Without dead ends: 937 [2021-08-27 07:50:26,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 48.7ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2021-08-27 07:50:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 931. [2021-08-27 07:50:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 745 states have (on average 1.32751677852349) internal successors, (989), 744 states have internal predecessors, (989), 107 states have call successors, (107), 68 states have call predecessors, (107), 78 states have return successors, (158), 120 states have call predecessors, (158), 98 states have call successors, (158) [2021-08-27 07:50:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1254 transitions. [2021-08-27 07:50:26,853 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1254 transitions. Word has length 40 [2021-08-27 07:50:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:26,853 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1254 transitions. [2021-08-27 07:50:26,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1254 transitions. [2021-08-27 07:50:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 07:50:26,855 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:26,855 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:26,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:27,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:27,069 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1951368972, now seen corresponding path program 1 times [2021-08-27 07:50:27,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:27,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241313668] [2021-08-27 07:50:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:27,070 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:27,071 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) [2021-08-27 07:50:27,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 07:50:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:27,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:27,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:27,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:27,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241313668] [2021-08-27 07:50:27,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241313668] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:27,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:27,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:27,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801667113] [2021-08-27 07:50:27,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:27,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:27,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:27,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:27,734 INFO L87 Difference]: Start difference. First operand 931 states and 1254 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:27,779 INFO L93 Difference]: Finished difference Result 941 states and 1263 transitions. [2021-08-27 07:50:27,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:27,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 41 [2021-08-27 07:50:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:27,783 INFO L225 Difference]: With dead ends: 941 [2021-08-27 07:50:27,784 INFO L226 Difference]: Without dead ends: 929 [2021-08-27 07:50:27,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-08-27 07:50:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2021-08-27 07:50:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 744 states have (on average 1.3266129032258065) internal successors, (987), 743 states have internal predecessors, (987), 106 states have call successors, (106), 68 states have call predecessors, (106), 78 states have return successors, (157), 119 states have call predecessors, (157), 97 states have call successors, (157) [2021-08-27 07:50:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1250 transitions. [2021-08-27 07:50:27,804 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1250 transitions. Word has length 41 [2021-08-27 07:50:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:27,804 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1250 transitions. [2021-08-27 07:50:27,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1250 transitions. [2021-08-27 07:50:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 07:50:27,806 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:27,806 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:27,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:28,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:28,018 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 169705483, now seen corresponding path program 1 times [2021-08-27 07:50:28,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:28,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527678993] [2021-08-27 07:50:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:28,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:28,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:28,049 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) [2021-08-27 07:50:28,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 07:50:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:28,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:28,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:28,722 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:28,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527678993] [2021-08-27 07:50:28,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527678993] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:28,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:28,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:28,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984091971] [2021-08-27 07:50:28,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:28,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:28,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:28,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:28,724 INFO L87 Difference]: Start difference. First operand 929 states and 1250 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:28,774 INFO L93 Difference]: Finished difference Result 939 states and 1259 transitions. [2021-08-27 07:50:28,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:28,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 42 [2021-08-27 07:50:28,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:28,778 INFO L225 Difference]: With dead ends: 939 [2021-08-27 07:50:28,778 INFO L226 Difference]: Without dead ends: 922 [2021-08-27 07:50:28,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-08-27 07:50:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2021-08-27 07:50:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 740 states have (on average 1.327027027027027) internal successors, (982), 739 states have internal predecessors, (982), 104 states have call successors, (104), 67 states have call predecessors, (104), 77 states have return successors, (155), 117 states have call predecessors, (155), 95 states have call successors, (155) [2021-08-27 07:50:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1241 transitions. [2021-08-27 07:50:28,802 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1241 transitions. Word has length 42 [2021-08-27 07:50:28,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:28,802 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1241 transitions. [2021-08-27 07:50:28,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1241 transitions. [2021-08-27 07:50:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 07:50:28,804 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:28,804 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:28,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:29,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:29,020 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:29,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1573461952, now seen corresponding path program 1 times [2021-08-27 07:50:29,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:29,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942533032] [2021-08-27 07:50:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:29,021 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:29,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:29,022 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) [2021-08-27 07:50:29,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 07:50:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 07:50:29,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:29,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:29,732 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:29,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942533032] [2021-08-27 07:50:29,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942533032] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:29,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:29,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 07:50:29,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7700778] [2021-08-27 07:50:29,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:50:29,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:29,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:50:29,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:50:29,734 INFO L87 Difference]: Start difference. First operand 922 states and 1241 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:50:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:29,824 INFO L93 Difference]: Finished difference Result 936 states and 1257 transitions. [2021-08-27 07:50:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 07:50:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2021-08-27 07:50:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:29,829 INFO L225 Difference]: With dead ends: 936 [2021-08-27 07:50:29,829 INFO L226 Difference]: Without dead ends: 936 [2021-08-27 07:50:29,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-08-27 07:50:29,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 924. [2021-08-27 07:50:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 742 states have (on average 1.326145552560647) internal successors, (984), 741 states have internal predecessors, (984), 104 states have call successors, (104), 67 states have call predecessors, (104), 77 states have return successors, (155), 117 states have call predecessors, (155), 95 states have call successors, (155) [2021-08-27 07:50:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1243 transitions. [2021-08-27 07:50:29,850 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1243 transitions. Word has length 42 [2021-08-27 07:50:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:29,850 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1243 transitions. [2021-08-27 07:50:29,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 07:50:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1243 transitions. [2021-08-27 07:50:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-08-27 07:50:29,852 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:29,852 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:29,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:30,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:30,065 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:30,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1164590594, now seen corresponding path program 1 times [2021-08-27 07:50:30,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:30,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868098564] [2021-08-27 07:50:30,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:30,067 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:30,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:30,068 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) [2021-08-27 07:50:30,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 07:50:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:30,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:30,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:30,811 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:30,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868098564] [2021-08-27 07:50:30,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868098564] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:30,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:30,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:30,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027914461] [2021-08-27 07:50:30,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:30,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:30,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:30,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:30,812 INFO L87 Difference]: Start difference. First operand 924 states and 1243 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:30,851 INFO L93 Difference]: Finished difference Result 943 states and 1267 transitions. [2021-08-27 07:50:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:50:30,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2021-08-27 07:50:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:30,855 INFO L225 Difference]: With dead ends: 943 [2021-08-27 07:50:30,855 INFO L226 Difference]: Without dead ends: 943 [2021-08-27 07:50:30,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-08-27 07:50:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 928. [2021-08-27 07:50:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 745 states have (on average 1.3248322147651006) internal successors, (987), 744 states have internal predecessors, (987), 104 states have call successors, (104), 67 states have call predecessors, (104), 78 states have return successors, (157), 118 states have call predecessors, (157), 95 states have call successors, (157) [2021-08-27 07:50:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1248 transitions. [2021-08-27 07:50:30,876 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1248 transitions. Word has length 44 [2021-08-27 07:50:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:30,877 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1248 transitions. [2021-08-27 07:50:30,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1248 transitions. [2021-08-27 07:50:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 07:50:30,878 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:30,878 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:30,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:31,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:31,091 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:31,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash -200722415, now seen corresponding path program 1 times [2021-08-27 07:50:31,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:31,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816190083] [2021-08-27 07:50:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:31,092 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:31,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:31,093 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) [2021-08-27 07:50:31,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 07:50:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:31,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:31,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:31,908 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:31,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816190083] [2021-08-27 07:50:31,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816190083] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:31,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:31,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:31,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719974007] [2021-08-27 07:50:31,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:31,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:31,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:31,909 INFO L87 Difference]: Start difference. First operand 928 states and 1248 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:31,976 INFO L93 Difference]: Finished difference Result 941 states and 1260 transitions. [2021-08-27 07:50:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2021-08-27 07:50:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:31,980 INFO L225 Difference]: With dead ends: 941 [2021-08-27 07:50:31,980 INFO L226 Difference]: Without dead ends: 926 [2021-08-27 07:50:31,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-08-27 07:50:31,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 926. [2021-08-27 07:50:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 744 states have (on average 1.3239247311827957) internal successors, (985), 743 states have internal predecessors, (985), 103 states have call successors, (103), 67 states have call predecessors, (103), 78 states have return successors, (156), 117 states have call predecessors, (156), 94 states have call successors, (156) [2021-08-27 07:50:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1244 transitions. [2021-08-27 07:50:31,999 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1244 transitions. Word has length 45 [2021-08-27 07:50:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:32,000 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1244 transitions. [2021-08-27 07:50:32,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1244 transitions. [2021-08-27 07:50:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:32,002 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:32,002 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:32,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:32,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:32,215 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:32,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1876016931, now seen corresponding path program 1 times [2021-08-27 07:50:32,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:32,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954199786] [2021-08-27 07:50:32,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:32,216 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:32,217 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) [2021-08-27 07:50:32,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 07:50:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:32,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:32,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:33,006 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:33,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954199786] [2021-08-27 07:50:33,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954199786] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:33,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:33,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:33,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995051387] [2021-08-27 07:50:33,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:33,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:33,008 INFO L87 Difference]: Start difference. First operand 926 states and 1244 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:33,037 INFO L93 Difference]: Finished difference Result 950 states and 1270 transitions. [2021-08-27 07:50:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2021-08-27 07:50:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:33,044 INFO L225 Difference]: With dead ends: 950 [2021-08-27 07:50:33,044 INFO L226 Difference]: Without dead ends: 949 [2021-08-27 07:50:33,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2021-08-27 07:50:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 914. [2021-08-27 07:50:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 734 states have (on average 1.326975476839237) internal successors, (974), 734 states have internal predecessors, (974), 103 states have call successors, (103), 67 states have call predecessors, (103), 76 states have return successors, (154), 114 states have call predecessors, (154), 94 states have call successors, (154) [2021-08-27 07:50:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1231 transitions. [2021-08-27 07:50:33,064 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1231 transitions. Word has length 46 [2021-08-27 07:50:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:33,065 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 1231 transitions. [2021-08-27 07:50:33,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1231 transitions. [2021-08-27 07:50:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:33,066 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:33,066 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:33,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:33,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:33,279 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:33,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1890361840, now seen corresponding path program 1 times [2021-08-27 07:50:33,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:33,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359405694] [2021-08-27 07:50:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:33,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:33,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:33,281 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) [2021-08-27 07:50:33,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 07:50:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:33,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:33,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:34,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:34,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359405694] [2021-08-27 07:50:34,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359405694] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:34,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:34,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:34,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469839413] [2021-08-27 07:50:34,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:34,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:34,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:34,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:34,102 INFO L87 Difference]: Start difference. First operand 914 states and 1231 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:34,141 INFO L93 Difference]: Finished difference Result 930 states and 1237 transitions. [2021-08-27 07:50:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2021-08-27 07:50:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:34,146 INFO L225 Difference]: With dead ends: 930 [2021-08-27 07:50:34,146 INFO L226 Difference]: Without dead ends: 909 [2021-08-27 07:50:34,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2021-08-27 07:50:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 902. [2021-08-27 07:50:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 724 states have (on average 1.3149171270718232) internal successors, (952), 723 states have internal predecessors, (952), 103 states have call successors, (103), 67 states have call predecessors, (103), 74 states have return successors, (152), 113 states have call predecessors, (152), 94 states have call successors, (152) [2021-08-27 07:50:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1207 transitions. [2021-08-27 07:50:34,164 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1207 transitions. Word has length 46 [2021-08-27 07:50:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:34,165 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1207 transitions. [2021-08-27 07:50:34,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1207 transitions. [2021-08-27 07:50:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:50:34,166 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:34,166 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:34,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:34,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:34,379 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:34,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1323876614, now seen corresponding path program 1 times [2021-08-27 07:50:34,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:34,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487626074] [2021-08-27 07:50:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:34,380 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:34,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:34,381 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) [2021-08-27 07:50:34,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 07:50:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 07:50:34,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:35,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:35,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:35,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487626074] [2021-08-27 07:50:35,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487626074] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:35,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:35,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:35,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305846136] [2021-08-27 07:50:35,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:35,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:35,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:35,455 INFO L87 Difference]: Start difference. First operand 902 states and 1207 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 07:50:36,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:36,043 INFO L93 Difference]: Finished difference Result 1169 states and 1564 transitions. [2021-08-27 07:50:36,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:36,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 47 [2021-08-27 07:50:36,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:36,048 INFO L225 Difference]: With dead ends: 1169 [2021-08-27 07:50:36,048 INFO L226 Difference]: Without dead ends: 1169 [2021-08-27 07:50:36,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 42.9ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:36,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-08-27 07:50:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 964. [2021-08-27 07:50:36,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 773 states have (on average 1.3065976714100906) internal successors, (1010), 774 states have internal predecessors, (1010), 109 states have call successors, (109), 73 states have call predecessors, (109), 81 states have return successors, (168), 118 states have call predecessors, (168), 100 states have call successors, (168) [2021-08-27 07:50:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1287 transitions. [2021-08-27 07:50:36,078 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1287 transitions. Word has length 47 [2021-08-27 07:50:36,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:36,079 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1287 transitions. [2021-08-27 07:50:36,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 6 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 07:50:36,079 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1287 transitions. [2021-08-27 07:50:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:50:36,080 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:36,080 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:36,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:36,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:36,293 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:36,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:36,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1450285211, now seen corresponding path program 1 times [2021-08-27 07:50:36,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:36,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769794454] [2021-08-27 07:50:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:36,294 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:36,295 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) [2021-08-27 07:50:36,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 07:50:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:36,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:37,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:37,201 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:37,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769794454] [2021-08-27 07:50:37,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769794454] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:37,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:37,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:37,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719626675] [2021-08-27 07:50:37,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:37,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:37,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:37,204 INFO L87 Difference]: Start difference. First operand 964 states and 1287 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:37,273 INFO L93 Difference]: Finished difference Result 977 states and 1299 transitions. [2021-08-27 07:50:37,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:37,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 47 [2021-08-27 07:50:37,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:37,277 INFO L225 Difference]: With dead ends: 977 [2021-08-27 07:50:37,277 INFO L226 Difference]: Without dead ends: 962 [2021-08-27 07:50:37,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 37.3ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:37,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-08-27 07:50:37,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2021-08-27 07:50:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 772 states have (on average 1.305699481865285) internal successors, (1008), 773 states have internal predecessors, (1008), 108 states have call successors, (108), 73 states have call predecessors, (108), 81 states have return successors, (167), 117 states have call predecessors, (167), 99 states have call successors, (167) [2021-08-27 07:50:37,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1283 transitions. [2021-08-27 07:50:37,295 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1283 transitions. Word has length 47 [2021-08-27 07:50:37,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:37,295 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1283 transitions. [2021-08-27 07:50:37,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:37,296 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1283 transitions. [2021-08-27 07:50:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 07:50:37,297 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:37,297 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:37,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:37,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:37,510 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:37,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:37,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1584755808, now seen corresponding path program 1 times [2021-08-27 07:50:37,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:37,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023908664] [2021-08-27 07:50:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:37,512 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:37,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:37,513 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) [2021-08-27 07:50:37,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 07:50:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:38,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:38,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:38,848 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:38,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023908664] [2021-08-27 07:50:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023908664] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:38,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:38,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-27 07:50:38,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700028394] [2021-08-27 07:50:38,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:38,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:38,850 INFO L87 Difference]: Start difference. First operand 962 states and 1283 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:39,791 INFO L93 Difference]: Finished difference Result 1187 states and 1577 transitions. [2021-08-27 07:50:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 07:50:39,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 50 [2021-08-27 07:50:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:39,799 INFO L225 Difference]: With dead ends: 1187 [2021-08-27 07:50:39,799 INFO L226 Difference]: Without dead ends: 1187 [2021-08-27 07:50:39,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-08-27 07:50:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1048. [2021-08-27 07:50:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 838 states have (on average 1.2971360381861574) internal successors, (1087), 847 states have internal predecessors, (1087), 113 states have call successors, (113), 76 states have call predecessors, (113), 96 states have return successors, (197), 125 states have call predecessors, (197), 104 states have call successors, (197) [2021-08-27 07:50:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1397 transitions. [2021-08-27 07:50:39,821 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1397 transitions. Word has length 50 [2021-08-27 07:50:39,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:39,821 INFO L470 AbstractCegarLoop]: Abstraction has 1048 states and 1397 transitions. [2021-08-27 07:50:39,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:39,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1397 transitions. [2021-08-27 07:50:39,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 07:50:39,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:39,823 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:39,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:40,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:40,037 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:40,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:40,037 INFO L82 PathProgramCache]: Analyzing trace with hash 78678395, now seen corresponding path program 1 times [2021-08-27 07:50:40,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:40,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687751897] [2021-08-27 07:50:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:40,038 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:40,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:40,039 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) [2021-08-27 07:50:40,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 07:50:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:40,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:40,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:40,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:41,090 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:41,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687751897] [2021-08-27 07:50:41,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687751897] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:41,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:41,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-27 07:50:41,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970066685] [2021-08-27 07:50:41,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:50:41,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:50:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:50:41,092 INFO L87 Difference]: Start difference. First operand 1048 states and 1397 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 07:50:41,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:41,228 INFO L93 Difference]: Finished difference Result 1080 states and 1429 transitions. [2021-08-27 07:50:41,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:50:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 50 [2021-08-27 07:50:41,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:41,245 INFO L225 Difference]: With dead ends: 1080 [2021-08-27 07:50:41,245 INFO L226 Difference]: Without dead ends: 1038 [2021-08-27 07:50:41,245 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 77.2ms TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2021-08-27 07:50:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2021-08-27 07:50:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 828 states have (on average 1.2801932367149758) internal successors, (1060), 837 states have internal predecessors, (1060), 113 states have call successors, (113), 76 states have call predecessors, (113), 96 states have return successors, (197), 125 states have call predecessors, (197), 104 states have call successors, (197) [2021-08-27 07:50:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1370 transitions. [2021-08-27 07:50:41,264 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1370 transitions. Word has length 50 [2021-08-27 07:50:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 1370 transitions. [2021-08-27 07:50:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 07:50:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1370 transitions. [2021-08-27 07:50:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 07:50:41,270 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:41,270 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:41,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:41,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:41,489 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1587211608, now seen corresponding path program 1 times [2021-08-27 07:50:41,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:41,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055272837] [2021-08-27 07:50:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:41,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:41,491 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) [2021-08-27 07:50:41,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-27 07:50:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:42,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:42,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:42,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:42,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:42,452 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:42,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055272837] [2021-08-27 07:50:42,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055272837] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:42,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:42,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-08-27 07:50:42,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708343353] [2021-08-27 07:50:42,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:42,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:42,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:42,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:42,454 INFO L87 Difference]: Start difference. First operand 1038 states and 1370 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:42,648 INFO L93 Difference]: Finished difference Result 757 states and 955 transitions. [2021-08-27 07:50:42,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:50:42,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 52 [2021-08-27 07:50:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:42,651 INFO L225 Difference]: With dead ends: 757 [2021-08-27 07:50:42,652 INFO L226 Difference]: Without dead ends: 757 [2021-08-27 07:50:42,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2021-08-27 07:50:42,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 720. [2021-08-27 07:50:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 577 states have (on average 1.2530329289428077) internal successors, (723), 580 states have internal predecessors, (723), 78 states have call successors, (78), 51 states have call predecessors, (78), 64 states have return successors, (107), 89 states have call predecessors, (107), 69 states have call successors, (107) [2021-08-27 07:50:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 908 transitions. [2021-08-27 07:50:42,663 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 908 transitions. Word has length 52 [2021-08-27 07:50:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:42,664 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 908 transitions. [2021-08-27 07:50:42,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 908 transitions. [2021-08-27 07:50:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 07:50:42,665 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:42,665 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:42,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-08-27 07:50:42,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:42,879 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:42,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:42,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1186334494, now seen corresponding path program 1 times [2021-08-27 07:50:42,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:42,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144958770] [2021-08-27 07:50:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:42,880 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:42,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:42,881 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) [2021-08-27 07:50:42,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-27 07:50:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:43,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:43,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:43,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:43,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:43,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144958770] [2021-08-27 07:50:43,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144958770] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:43,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:43,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-27 07:50:43,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218610518] [2021-08-27 07:50:43,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:50:43,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:43,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:50:43,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:50:43,976 INFO L87 Difference]: Start difference. First operand 720 states and 908 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:44,076 INFO L93 Difference]: Finished difference Result 738 states and 929 transitions. [2021-08-27 07:50:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:50:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 51 [2021-08-27 07:50:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:44,079 INFO L225 Difference]: With dead ends: 738 [2021-08-27 07:50:44,080 INFO L226 Difference]: Without dead ends: 738 [2021-08-27 07:50:44,081 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.9ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:44,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2021-08-27 07:50:44,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 723. [2021-08-27 07:50:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 580 states have (on average 1.2517241379310344) internal successors, (726), 582 states have internal predecessors, (726), 78 states have call successors, (78), 51 states have call predecessors, (78), 64 states have return successors, (107), 90 states have call predecessors, (107), 69 states have call successors, (107) [2021-08-27 07:50:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 911 transitions. [2021-08-27 07:50:44,092 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 911 transitions. Word has length 51 [2021-08-27 07:50:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:44,092 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 911 transitions. [2021-08-27 07:50:44,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 911 transitions. [2021-08-27 07:50:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 07:50:44,094 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:44,094 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:44,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:44,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:44,307 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:44,307 INFO L82 PathProgramCache]: Analyzing trace with hash -665981689, now seen corresponding path program 1 times [2021-08-27 07:50:44,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:44,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920197964] [2021-08-27 07:50:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:44,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:44,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:44,308 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) [2021-08-27 07:50:44,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 07:50:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:45,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:45,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:45,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:45,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:45,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920197964] [2021-08-27 07:50:45,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920197964] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:45,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:45,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-27 07:50:45,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127194389] [2021-08-27 07:50:45,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:45,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:45,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:45,697 INFO L87 Difference]: Start difference. First operand 723 states and 911 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:46,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:46,345 INFO L93 Difference]: Finished difference Result 713 states and 891 transitions. [2021-08-27 07:50:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:46,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 52 [2021-08-27 07:50:46,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:46,348 INFO L225 Difference]: With dead ends: 713 [2021-08-27 07:50:46,348 INFO L226 Difference]: Without dead ends: 713 [2021-08-27 07:50:46,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 116.7ms TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-08-27 07:50:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 653. [2021-08-27 07:50:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 521 states have (on average 1.2533589251439539) internal successors, (653), 531 states have internal predecessors, (653), 74 states have call successors, (74), 47 states have call predecessors, (74), 57 states have return successors, (91), 75 states have call predecessors, (91), 65 states have call successors, (91) [2021-08-27 07:50:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 818 transitions. [2021-08-27 07:50:46,358 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 818 transitions. Word has length 52 [2021-08-27 07:50:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:46,359 INFO L470 AbstractCegarLoop]: Abstraction has 653 states and 818 transitions. [2021-08-27 07:50:46,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 818 transitions. [2021-08-27 07:50:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:46,360 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:46,360 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:46,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-08-27 07:50:46,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:46,574 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:46,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1428975009, now seen corresponding path program 1 times [2021-08-27 07:50:46,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:46,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550098236] [2021-08-27 07:50:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:46,575 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:46,575 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) [2021-08-27 07:50:46,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-08-27 07:50:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:47,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:50:47,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:47,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:47,905 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:47,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550098236] [2021-08-27 07:50:47,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550098236] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:47,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:47,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-08-27 07:50:47,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157687854] [2021-08-27 07:50:47,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:50:47,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:50:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:47,907 INFO L87 Difference]: Start difference. First operand 653 states and 818 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:48,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:48,195 INFO L93 Difference]: Finished difference Result 710 states and 892 transitions. [2021-08-27 07:50:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:48,196 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2021-08-27 07:50:48,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:48,199 INFO L225 Difference]: With dead ends: 710 [2021-08-27 07:50:48,199 INFO L226 Difference]: Without dead ends: 683 [2021-08-27 07:50:48,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:48,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2021-08-27 07:50:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 655. [2021-08-27 07:50:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 524 states have (on average 1.2576335877862594) internal successors, (659), 534 states have internal predecessors, (659), 73 states have call successors, (73), 47 states have call predecessors, (73), 57 states have return successors, (90), 74 states have call predecessors, (90), 64 states have call successors, (90) [2021-08-27 07:50:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 822 transitions. [2021-08-27 07:50:48,224 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 822 transitions. Word has length 53 [2021-08-27 07:50:48,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:48,225 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 822 transitions. [2021-08-27 07:50:48,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 822 transitions. [2021-08-27 07:50:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:50:48,227 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:48,227 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:48,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:48,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:48,441 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:48,441 INFO L82 PathProgramCache]: Analyzing trace with hash -554964738, now seen corresponding path program 1 times [2021-08-27 07:50:48,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:48,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535755716] [2021-08-27 07:50:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:48,442 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:48,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:48,443 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) [2021-08-27 07:50:48,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-08-27 07:50:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:49,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 07:50:49,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:49,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:49,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:49,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535755716] [2021-08-27 07:50:49,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535755716] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:49,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:49,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-08-27 07:50:49,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786784624] [2021-08-27 07:50:49,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:49,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:49,709 INFO L87 Difference]: Start difference. First operand 655 states and 822 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 1 states have call successors, (8) [2021-08-27 07:50:49,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:49,773 INFO L93 Difference]: Finished difference Result 668 states and 834 transitions. [2021-08-27 07:50:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:50:49,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2021-08-27 07:50:49,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:49,775 INFO L225 Difference]: With dead ends: 668 [2021-08-27 07:50:49,775 INFO L226 Difference]: Without dead ends: 643 [2021-08-27 07:50:49,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 91.2ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-08-27 07:50:49,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2021-08-27 07:50:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 515 states have (on average 1.2563106796116505) internal successors, (647), 525 states have internal predecessors, (647), 71 states have call successors, (71), 46 states have call predecessors, (71), 56 states have return successors, (88), 72 states have call predecessors, (88), 62 states have call successors, (88) [2021-08-27 07:50:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 806 transitions. [2021-08-27 07:50:49,783 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 806 transitions. Word has length 55 [2021-08-27 07:50:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:49,783 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 806 transitions. [2021-08-27 07:50:49,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 1 states have call successors, (8) [2021-08-27 07:50:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 806 transitions. [2021-08-27 07:50:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 07:50:49,784 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:49,785 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:49,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-08-27 07:50:49,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:49,997 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:49,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:49,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1147913992, now seen corresponding path program 1 times [2021-08-27 07:50:49,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:49,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984499740] [2021-08-27 07:50:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:49,998 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:49,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:50,009 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) [2021-08-27 07:50:50,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-08-27 07:50:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:50,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:50,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:51,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:51,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:51,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984499740] [2021-08-27 07:50:51,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984499740] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:51,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:51,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:51,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589661061] [2021-08-27 07:50:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:51,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:51,158 INFO L87 Difference]: Start difference. First operand 643 states and 806 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:51,207 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2021-08-27 07:50:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:51,212 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-08-27 07:50:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:51,214 INFO L225 Difference]: With dead ends: 642 [2021-08-27 07:50:51,214 INFO L226 Difference]: Without dead ends: 642 [2021-08-27 07:50:51,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-08-27 07:50:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2021-08-27 07:50:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 514 states have (on average 1.2509727626459144) internal successors, (643), 524 states have internal predecessors, (643), 71 states have call successors, (71), 46 states have call predecessors, (71), 56 states have return successors, (88), 72 states have call predecessors, (88), 62 states have call successors, (88) [2021-08-27 07:50:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 802 transitions. [2021-08-27 07:50:51,223 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 802 transitions. Word has length 58 [2021-08-27 07:50:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:51,223 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 802 transitions. [2021-08-27 07:50:51,223 INFO L471 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 802 transitions. [2021-08-27 07:50:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:50:51,225 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:51,225 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:51,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:51,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:51,438 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:51,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:51,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1720295482, now seen corresponding path program 1 times [2021-08-27 07:50:51,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:51,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604039302] [2021-08-27 07:50:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:51,439 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:51,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:51,440 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) [2021-08-27 07:50:51,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-08-27 07:50:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:52,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:52,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:52,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:52,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:52,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604039302] [2021-08-27 07:50:52,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604039302] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:52,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:52,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 07:50:52,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898071575] [2021-08-27 07:50:52,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:52,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:52,681 INFO L87 Difference]: Start difference. First operand 642 states and 802 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:52,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:52,699 INFO L93 Difference]: Finished difference Result 593 states and 734 transitions. [2021-08-27 07:50:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:52,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2021-08-27 07:50:52,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:52,702 INFO L225 Difference]: With dead ends: 593 [2021-08-27 07:50:52,702 INFO L226 Difference]: Without dead ends: 593 [2021-08-27 07:50:52,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-08-27 07:50:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-08-27 07:50:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 472 states have (on average 1.2394067796610169) internal successors, (585), 480 states have internal predecessors, (585), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (81), 68 states have call predecessors, (81), 60 states have call successors, (81) [2021-08-27 07:50:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 734 transitions. [2021-08-27 07:50:52,709 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 734 transitions. Word has length 64 [2021-08-27 07:50:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:52,709 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 734 transitions. [2021-08-27 07:50:52,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 734 transitions. [2021-08-27 07:50:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-27 07:50:52,711 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:52,711 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:52,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:52,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:52,924 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:52,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1979839065, now seen corresponding path program 1 times [2021-08-27 07:50:52,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:52,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168021206] [2021-08-27 07:50:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:52,925 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:52,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:52,926 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) [2021-08-27 07:50:52,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-08-27 07:50:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:53,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 07:50:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:54,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:54,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:54,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168021206] [2021-08-27 07:50:54,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168021206] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:54,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:54,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-08-27 07:50:54,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425637480] [2021-08-27 07:50:54,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:54,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:54,276 INFO L87 Difference]: Start difference. First operand 593 states and 734 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 10 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:54,449 INFO L93 Difference]: Finished difference Result 628 states and 770 transitions. [2021-08-27 07:50:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 07:50:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 10 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 59 [2021-08-27 07:50:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:54,452 INFO L225 Difference]: With dead ends: 628 [2021-08-27 07:50:54,452 INFO L226 Difference]: Without dead ends: 592 [2021-08-27 07:50:54,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 116.0ms TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-08-27 07:50:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-08-27 07:50:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 590. [2021-08-27 07:50:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 469 states have (on average 1.2409381663113006) internal successors, (582), 478 states have internal predecessors, (582), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (80), 67 states have call predecessors, (80), 60 states have call successors, (80) [2021-08-27 07:50:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 730 transitions. [2021-08-27 07:50:54,461 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 730 transitions. Word has length 59 [2021-08-27 07:50:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:54,462 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 730 transitions. [2021-08-27 07:50:54,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 10 states have internal predecessors, (63), 4 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 730 transitions. [2021-08-27 07:50:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 07:50:54,464 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:54,464 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:54,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:54,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:54,678 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:54,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:54,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1574122508, now seen corresponding path program 1 times [2021-08-27 07:50:54,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:54,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25815921] [2021-08-27 07:50:54,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:54,679 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:54,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:54,681 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) [2021-08-27 07:50:54,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-08-27 07:50:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:55,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:50:55,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:55,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:56,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:56,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25815921] [2021-08-27 07:50:56,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25815921] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:56,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:56,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-08-27 07:50:56,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011591594] [2021-08-27 07:50:56,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:50:56,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:56,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:50:56,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:56,212 INFO L87 Difference]: Start difference. First operand 590 states and 730 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:56,481 INFO L93 Difference]: Finished difference Result 631 states and 781 transitions. [2021-08-27 07:50:56,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:56,482 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 58 [2021-08-27 07:50:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:56,484 INFO L225 Difference]: With dead ends: 631 [2021-08-27 07:50:56,484 INFO L226 Difference]: Without dead ends: 604 [2021-08-27 07:50:56,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-08-27 07:50:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 586. [2021-08-27 07:50:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 466 states have (on average 1.240343347639485) internal successors, (578), 475 states have internal predecessors, (578), 67 states have call successors, (67), 45 states have call predecessors, (67), 52 states have return successors, (79), 66 states have call predecessors, (79), 59 states have call successors, (79) [2021-08-27 07:50:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 724 transitions. [2021-08-27 07:50:56,493 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 724 transitions. Word has length 58 [2021-08-27 07:50:56,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:56,493 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 724 transitions. [2021-08-27 07:50:56,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:56,493 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 724 transitions. [2021-08-27 07:50:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 07:50:56,494 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:56,494 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:56,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:56,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:56,695 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:56,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:56,695 INFO L82 PathProgramCache]: Analyzing trace with hash 173553176, now seen corresponding path program 1 times [2021-08-27 07:50:56,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:56,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758875949] [2021-08-27 07:50:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:56,695 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:56,696 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) [2021-08-27 07:50:56,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-08-27 07:50:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:57,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 07:50:57,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:57,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:58,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:58,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758875949] [2021-08-27 07:50:58,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758875949] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:58,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:58,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 10 [2021-08-27 07:50:58,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616711165] [2021-08-27 07:50:58,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:50:58,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:58,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:50:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:50:58,277 INFO L87 Difference]: Start difference. First operand 586 states and 724 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 07:50:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:59,364 INFO L93 Difference]: Finished difference Result 911 states and 1120 transitions. [2021-08-27 07:50:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:59,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 60 [2021-08-27 07:50:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:59,367 INFO L225 Difference]: With dead ends: 911 [2021-08-27 07:50:59,367 INFO L226 Difference]: Without dead ends: 751 [2021-08-27 07:50:59,368 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-08-27 07:50:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 682. [2021-08-27 07:50:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 542 states have (on average 1.2232472324723247) internal successors, (663), 555 states have internal predecessors, (663), 79 states have call successors, (79), 49 states have call predecessors, (79), 60 states have return successors, (92), 78 states have call predecessors, (92), 69 states have call successors, (92) [2021-08-27 07:50:59,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 834 transitions. [2021-08-27 07:50:59,378 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 834 transitions. Word has length 60 [2021-08-27 07:50:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:59,378 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 834 transitions. [2021-08-27 07:50:59,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 07:50:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 834 transitions. [2021-08-27 07:50:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 07:50:59,380 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:59,380 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:59,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:59,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:59,594 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:59,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:59,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1761901078, now seen corresponding path program 1 times [2021-08-27 07:50:59,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:59,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278499125] [2021-08-27 07:50:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:59,595 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:59,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:59,596 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) [2021-08-27 07:50:59,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-08-27 07:51:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:00,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:51:00,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:00,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:01,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:01,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278499125] [2021-08-27 07:51:01,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278499125] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:01,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:01,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-27 07:51:01,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579372240] [2021-08-27 07:51:01,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:51:01,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:01,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:51:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:51:01,036 INFO L87 Difference]: Start difference. First operand 682 states and 834 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:51:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:01,142 INFO L93 Difference]: Finished difference Result 710 states and 862 transitions. [2021-08-27 07:51:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:51:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2021-08-27 07:51:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:01,145 INFO L225 Difference]: With dead ends: 710 [2021-08-27 07:51:01,145 INFO L226 Difference]: Without dead ends: 678 [2021-08-27 07:51:01,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:51:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-08-27 07:51:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 666. [2021-08-27 07:51:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 531 states have (on average 1.2203389830508475) internal successors, (648), 543 states have internal predecessors, (648), 77 states have call successors, (77), 48 states have call predecessors, (77), 57 states have return successors, (88), 75 states have call predecessors, (88), 67 states have call successors, (88) [2021-08-27 07:51:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 813 transitions. [2021-08-27 07:51:01,155 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 813 transitions. Word has length 60 [2021-08-27 07:51:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:01,155 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 813 transitions. [2021-08-27 07:51:01,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:51:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 813 transitions. [2021-08-27 07:51:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-27 07:51:01,157 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:01,157 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:01,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:01,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:01,371 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:01,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:01,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1588849571, now seen corresponding path program 1 times [2021-08-27 07:51:01,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:01,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533213149] [2021-08-27 07:51:01,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:01,372 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:01,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:01,373 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) [2021-08-27 07:51:01,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-08-27 07:51:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:02,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:51:02,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:02,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:02,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:02,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533213149] [2021-08-27 07:51:02,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533213149] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:02,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:02,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-27 07:51:02,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117036075] [2021-08-27 07:51:02,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:51:02,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:02,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:51:02,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:51:02,762 INFO L87 Difference]: Start difference. First operand 666 states and 813 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:51:02,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:02,789 INFO L93 Difference]: Finished difference Result 656 states and 800 transitions. [2021-08-27 07:51:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 07:51:02,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2021-08-27 07:51:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:02,799 INFO L225 Difference]: With dead ends: 656 [2021-08-27 07:51:02,799 INFO L226 Difference]: Without dead ends: 637 [2021-08-27 07:51:02,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:51:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-08-27 07:51:02,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2021-08-27 07:51:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 510 states have (on average 1.2254901960784315) internal successors, (625), 521 states have internal predecessors, (625), 73 states have call successors, (73), 47 states have call predecessors, (73), 53 states have return successors, (81), 69 states have call predecessors, (81), 63 states have call successors, (81) [2021-08-27 07:51:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 779 transitions. [2021-08-27 07:51:02,808 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 779 transitions. Word has length 61 [2021-08-27 07:51:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:02,809 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 779 transitions. [2021-08-27 07:51:02,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:51:02,809 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 779 transitions. [2021-08-27 07:51:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-27 07:51:02,810 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:02,810 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:02,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:03,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:03,024 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:03,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1503037677, now seen corresponding path program 1 times [2021-08-27 07:51:03,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:03,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584345044] [2021-08-27 07:51:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:03,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:03,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:03,027 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) [2021-08-27 07:51:03,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-08-27 07:51:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:04,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:51:04,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:04,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:04,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:04,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584345044] [2021-08-27 07:51:04,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584345044] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:04,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:04,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-08-27 07:51:04,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236765472] [2021-08-27 07:51:04,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 07:51:04,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 07:51:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:51:04,853 INFO L87 Difference]: Start difference. First operand 637 states and 779 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 07:51:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:05,163 INFO L93 Difference]: Finished difference Result 639 states and 778 transitions. [2021-08-27 07:51:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:51:05,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 68 [2021-08-27 07:51:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:05,166 INFO L225 Difference]: With dead ends: 639 [2021-08-27 07:51:05,166 INFO L226 Difference]: Without dead ends: 639 [2021-08-27 07:51:05,167 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:51:05,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-08-27 07:51:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 637. [2021-08-27 07:51:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 510 states have (on average 1.2215686274509805) internal successors, (623), 521 states have internal predecessors, (623), 73 states have call successors, (73), 47 states have call predecessors, (73), 53 states have return successors, (81), 69 states have call predecessors, (81), 63 states have call successors, (81) [2021-08-27 07:51:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 777 transitions. [2021-08-27 07:51:05,175 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 777 transitions. Word has length 68 [2021-08-27 07:51:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:05,175 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 777 transitions. [2021-08-27 07:51:05,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 07:51:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 777 transitions. [2021-08-27 07:51:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-08-27 07:51:05,177 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:05,177 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:05,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:05,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:05,391 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:05,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1683825362, now seen corresponding path program 1 times [2021-08-27 07:51:05,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:05,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277389243] [2021-08-27 07:51:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:05,392 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:05,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:05,393 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) [2021-08-27 07:51:05,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-08-27 07:51:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:06,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:51:06,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:06,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:06,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:06,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277389243] [2021-08-27 07:51:06,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277389243] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:06,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:06,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 07:51:06,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431111605] [2021-08-27 07:51:06,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:51:06,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:06,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:51:06,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:51:06,887 INFO L87 Difference]: Start difference. First operand 637 states and 777 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:51:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:06,899 INFO L93 Difference]: Finished difference Result 619 states and 754 transitions. [2021-08-27 07:51:06,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:51:06,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2021-08-27 07:51:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:06,901 INFO L225 Difference]: With dead ends: 619 [2021-08-27 07:51:06,901 INFO L226 Difference]: Without dead ends: 619 [2021-08-27 07:51:06,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:51:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-08-27 07:51:06,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 614. [2021-08-27 07:51:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 491 states have (on average 1.2219959266802445) internal successors, (600), 502 states have internal predecessors, (600), 71 states have call successors, (71), 46 states have call predecessors, (71), 51 states have return successors, (78), 66 states have call predecessors, (78), 61 states have call successors, (78) [2021-08-27 07:51:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 749 transitions. [2021-08-27 07:51:06,909 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 749 transitions. Word has length 62 [2021-08-27 07:51:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:06,910 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 749 transitions. [2021-08-27 07:51:06,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 07:51:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 749 transitions. [2021-08-27 07:51:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:51:06,911 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:06,911 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:06,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:07,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:07,125 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash -563960348, now seen corresponding path program 1 times [2021-08-27 07:51:07,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:07,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813630264] [2021-08-27 07:51:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:07,126 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:07,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:07,127 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) [2021-08-27 07:51:07,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-08-27 07:51:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:08,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:51:08,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:08,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:08,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:08,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813630264] [2021-08-27 07:51:08,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813630264] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:08,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:08,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:51:08,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052681342] [2021-08-27 07:51:08,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:51:08,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:08,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:51:08,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:51:08,727 INFO L87 Difference]: Start difference. First operand 614 states and 749 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:08,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:08,746 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2021-08-27 07:51:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:51:08,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2021-08-27 07:51:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:08,748 INFO L225 Difference]: With dead ends: 622 [2021-08-27 07:51:08,749 INFO L226 Difference]: Without dead ends: 620 [2021-08-27 07:51:08,749 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:51:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-08-27 07:51:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 618. [2021-08-27 07:51:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 494 states have (on average 1.2206477732793521) internal successors, (603), 505 states have internal predecessors, (603), 71 states have call successors, (71), 46 states have call predecessors, (71), 52 states have return successors, (79), 67 states have call predecessors, (79), 61 states have call successors, (79) [2021-08-27 07:51:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 753 transitions. [2021-08-27 07:51:08,760 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 753 transitions. Word has length 63 [2021-08-27 07:51:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:08,761 INFO L470 AbstractCegarLoop]: Abstraction has 618 states and 753 transitions. [2021-08-27 07:51:08,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 753 transitions. [2021-08-27 07:51:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:51:08,762 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:08,762 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:08,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:08,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:08,977 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:08,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:08,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1715837219, now seen corresponding path program 1 times [2021-08-27 07:51:08,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:08,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114934011] [2021-08-27 07:51:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:08,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:08,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:08,979 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) [2021-08-27 07:51:08,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-08-27 07:51:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:10,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 07:51:10,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:10,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:10,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:10,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114934011] [2021-08-27 07:51:10,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114934011] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:10,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:10,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-08-27 07:51:10,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121004166] [2021-08-27 07:51:10,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 07:51:10,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:10,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 07:51:10,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:51:10,759 INFO L87 Difference]: Start difference. First operand 618 states and 753 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) [2021-08-27 07:51:10,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:10,839 INFO L93 Difference]: Finished difference Result 604 states and 733 transitions. [2021-08-27 07:51:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:51:10,846 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) Word has length 63 [2021-08-27 07:51:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:10,848 INFO L225 Difference]: With dead ends: 604 [2021-08-27 07:51:10,848 INFO L226 Difference]: Without dead ends: 604 [2021-08-27 07:51:10,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-27 07:51:10,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-08-27 07:51:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-08-27 07:51:10,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 482 states have (on average 1.2136929460580912) internal successors, (585), 492 states have internal predecessors, (585), 70 states have call successors, (70), 46 states have call predecessors, (70), 51 states have return successors, (78), 66 states have call predecessors, (78), 61 states have call successors, (78) [2021-08-27 07:51:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 733 transitions. [2021-08-27 07:51:10,856 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 733 transitions. Word has length 63 [2021-08-27 07:51:10,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:10,856 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 733 transitions. [2021-08-27 07:51:10,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) [2021-08-27 07:51:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 733 transitions. [2021-08-27 07:51:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 07:51:10,857 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:10,858 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:10,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:11,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:11,072 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:11,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1412890612, now seen corresponding path program 1 times [2021-08-27 07:51:11,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:11,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274033877] [2021-08-27 07:51:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:11,073 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:11,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:11,074 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) [2021-08-27 07:51:11,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-08-27 07:51:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:12,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:12,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:13,001 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:13,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274033877] [2021-08-27 07:51:13,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274033877] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:13,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:13,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:13,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217413306] [2021-08-27 07:51:13,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:13,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:13,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:13,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:13,004 INFO L87 Difference]: Start difference. First operand 604 states and 733 transitions. Second operand has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:13,298 INFO L93 Difference]: Finished difference Result 654 states and 789 transitions. [2021-08-27 07:51:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:13,298 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2021-08-27 07:51:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:13,300 INFO L225 Difference]: With dead ends: 654 [2021-08-27 07:51:13,300 INFO L226 Difference]: Without dead ends: 621 [2021-08-27 07:51:13,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 196.2ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-08-27 07:51:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 600. [2021-08-27 07:51:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 479 states have (on average 1.2129436325678498) internal successors, (581), 489 states have internal predecessors, (581), 69 states have call successors, (69), 46 states have call predecessors, (69), 51 states have return successors, (77), 65 states have call predecessors, (77), 60 states have call successors, (77) [2021-08-27 07:51:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 727 transitions. [2021-08-27 07:51:13,308 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 727 transitions. Word has length 63 [2021-08-27 07:51:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:13,309 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 727 transitions. [2021-08-27 07:51:13,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 13 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 727 transitions. [2021-08-27 07:51:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:51:13,310 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:13,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:13,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:13,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:13,522 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:13,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1873715283, now seen corresponding path program 1 times [2021-08-27 07:51:13,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:13,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507073911] [2021-08-27 07:51:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:13,523 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:13,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:13,523 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) [2021-08-27 07:51:13,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-08-27 07:51:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:14,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:51:14,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:15,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:15,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:15,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507073911] [2021-08-27 07:51:15,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507073911] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:15,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:15,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 07:51:15,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439702994] [2021-08-27 07:51:15,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:51:15,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:15,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:51:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:15,268 INFO L87 Difference]: Start difference. First operand 600 states and 727 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:15,288 INFO L93 Difference]: Finished difference Result 642 states and 780 transitions. [2021-08-27 07:51:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:51:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-08-27 07:51:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:15,290 INFO L225 Difference]: With dead ends: 642 [2021-08-27 07:51:15,290 INFO L226 Difference]: Without dead ends: 642 [2021-08-27 07:51:15,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-08-27 07:51:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 600. [2021-08-27 07:51:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 479 states have (on average 1.2129436325678498) internal successors, (581), 489 states have internal predecessors, (581), 69 states have call successors, (69), 46 states have call predecessors, (69), 51 states have return successors, (77), 65 states have call predecessors, (77), 60 states have call successors, (77) [2021-08-27 07:51:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 727 transitions. [2021-08-27 07:51:15,299 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 727 transitions. Word has length 71 [2021-08-27 07:51:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:15,299 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 727 transitions. [2021-08-27 07:51:15,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 727 transitions. [2021-08-27 07:51:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:51:15,301 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:15,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:15,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:15,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:15,511 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:15,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:15,511 INFO L82 PathProgramCache]: Analyzing trace with hash -427216749, now seen corresponding path program 1 times [2021-08-27 07:51:15,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:15,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708089679] [2021-08-27 07:51:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:15,512 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:15,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:15,513 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) [2021-08-27 07:51:15,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-08-27 07:51:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:16,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:51:16,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:17,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:17,270 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:17,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708089679] [2021-08-27 07:51:17,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708089679] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:17,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:17,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-27 07:51:17,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512896619] [2021-08-27 07:51:17,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:51:17,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:51:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:51:17,271 INFO L87 Difference]: Start difference. First operand 600 states and 727 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:17,304 INFO L93 Difference]: Finished difference Result 625 states and 754 transitions. [2021-08-27 07:51:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:51:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2021-08-27 07:51:17,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:17,306 INFO L225 Difference]: With dead ends: 625 [2021-08-27 07:51:17,306 INFO L226 Difference]: Without dead ends: 625 [2021-08-27 07:51:17,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:51:17,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-08-27 07:51:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 600. [2021-08-27 07:51:17,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 479 states have (on average 1.2066805845511481) internal successors, (578), 489 states have internal predecessors, (578), 69 states have call successors, (69), 46 states have call predecessors, (69), 51 states have return successors, (77), 65 states have call predecessors, (77), 60 states have call successors, (77) [2021-08-27 07:51:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 724 transitions. [2021-08-27 07:51:17,313 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 724 transitions. Word has length 71 [2021-08-27 07:51:17,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:17,314 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 724 transitions. [2021-08-27 07:51:17,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 724 transitions. [2021-08-27 07:51:17,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:51:17,315 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:17,315 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:17,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-08-27 07:51:17,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:17,525 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:17,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1569130029, now seen corresponding path program 1 times [2021-08-27 07:51:17,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:17,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975701212] [2021-08-27 07:51:17,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:17,526 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:17,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:17,526 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) [2021-08-27 07:51:17,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-08-27 07:51:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:18,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:18,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:19,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:19,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:19,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975701212] [2021-08-27 07:51:19,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975701212] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:19,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:19,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-08-27 07:51:19,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560622888] [2021-08-27 07:51:19,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:51:19,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:51:19,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:51:19,467 INFO L87 Difference]: Start difference. First operand 600 states and 724 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:19,647 INFO L93 Difference]: Finished difference Result 644 states and 773 transitions. [2021-08-27 07:51:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:51:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2021-08-27 07:51:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:19,649 INFO L225 Difference]: With dead ends: 644 [2021-08-27 07:51:19,649 INFO L226 Difference]: Without dead ends: 593 [2021-08-27 07:51:19,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-08-27 07:51:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 575. [2021-08-27 07:51:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 457 states have (on average 1.2056892778993435) internal successors, (551), 467 states have internal predecessors, (551), 68 states have call successors, (68), 45 states have call predecessors, (68), 49 states have return successors, (75), 63 states have call predecessors, (75), 59 states have call successors, (75) [2021-08-27 07:51:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 694 transitions. [2021-08-27 07:51:19,655 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 694 transitions. Word has length 64 [2021-08-27 07:51:19,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:19,656 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 694 transitions. [2021-08-27 07:51:19,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 11 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:19,656 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 694 transitions. [2021-08-27 07:51:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:51:19,657 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:19,657 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:19,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:19,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:19,861 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:19,861 INFO L82 PathProgramCache]: Analyzing trace with hash -890337210, now seen corresponding path program 1 times [2021-08-27 07:51:19,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:19,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182648666] [2021-08-27 07:51:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:19,862 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:19,863 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) [2021-08-27 07:51:19,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-08-27 07:51:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:21,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:21,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:21,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:21,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:21,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182648666] [2021-08-27 07:51:21,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182648666] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:21,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:21,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:21,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475901267] [2021-08-27 07:51:21,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:21,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:21,857 INFO L87 Difference]: Start difference. First operand 575 states and 694 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:22,169 INFO L93 Difference]: Finished difference Result 622 states and 746 transitions. [2021-08-27 07:51:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2021-08-27 07:51:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:22,171 INFO L225 Difference]: With dead ends: 622 [2021-08-27 07:51:22,171 INFO L226 Difference]: Without dead ends: 588 [2021-08-27 07:51:22,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 178.2ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:22,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-08-27 07:51:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 570. [2021-08-27 07:51:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 453 states have (on average 1.205298013245033) internal successors, (546), 463 states have internal predecessors, (546), 67 states have call successors, (67), 45 states have call predecessors, (67), 49 states have return successors, (74), 62 states have call predecessors, (74), 58 states have call successors, (74) [2021-08-27 07:51:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 687 transitions. [2021-08-27 07:51:22,179 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 687 transitions. Word has length 64 [2021-08-27 07:51:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:22,179 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 687 transitions. [2021-08-27 07:51:22,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 687 transitions. [2021-08-27 07:51:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 07:51:22,180 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:22,180 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:51:22,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:22,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:22,399 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:22,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1820448680, now seen corresponding path program 1 times [2021-08-27 07:51:22,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:22,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115197627] [2021-08-27 07:51:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:22,399 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:22,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:22,400 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) [2021-08-27 07:51:22,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-08-27 07:51:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:23,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:23,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:24,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:24,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:24,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:24,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:24,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115197627] [2021-08-27 07:51:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115197627] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:24,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:24,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:24,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143110849] [2021-08-27 07:51:24,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:24,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:24,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:24,433 INFO L87 Difference]: Start difference. First operand 570 states and 687 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:24,706 INFO L93 Difference]: Finished difference Result 617 states and 738 transitions. [2021-08-27 07:51:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2021-08-27 07:51:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:24,708 INFO L225 Difference]: With dead ends: 617 [2021-08-27 07:51:24,708 INFO L226 Difference]: Without dead ends: 584 [2021-08-27 07:51:24,708 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 179.3ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2021-08-27 07:51:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 566. [2021-08-27 07:51:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 450 states have (on average 1.2044444444444444) internal successors, (542), 460 states have internal predecessors, (542), 66 states have call successors, (66), 45 states have call predecessors, (66), 49 states have return successors, (73), 61 states have call predecessors, (73), 57 states have call successors, (73) [2021-08-27 07:51:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 681 transitions. [2021-08-27 07:51:24,714 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 681 transitions. Word has length 64 [2021-08-27 07:51:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:24,714 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 681 transitions. [2021-08-27 07:51:24,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 681 transitions. [2021-08-27 07:51:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-08-27 07:51:24,716 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:24,716 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:24,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-08-27 07:51:24,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:24,921 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:24,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:24,921 INFO L82 PathProgramCache]: Analyzing trace with hash 2134896106, now seen corresponding path program 1 times [2021-08-27 07:51:24,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:24,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074374757] [2021-08-27 07:51:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:24,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:24,922 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) [2021-08-27 07:51:24,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-08-27 07:51:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:26,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 07:51:26,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:26,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:26,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:26,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074374757] [2021-08-27 07:51:26,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074374757] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:26,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:26,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 07:51:26,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439501170] [2021-08-27 07:51:26,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:51:26,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:26,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:51:26,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:26,846 INFO L87 Difference]: Start difference. First operand 566 states and 681 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 07:51:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:27,014 INFO L93 Difference]: Finished difference Result 612 states and 720 transitions. [2021-08-27 07:51:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:51:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 73 [2021-08-27 07:51:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:27,016 INFO L225 Difference]: With dead ends: 612 [2021-08-27 07:51:27,017 INFO L226 Difference]: Without dead ends: 609 [2021-08-27 07:51:27,017 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-08-27 07:51:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 589. [2021-08-27 07:51:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 473 states have (on average 1.1966173361522199) internal successors, (566), 481 states have internal predecessors, (566), 62 states have call successors, (62), 49 states have call predecessors, (62), 53 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2021-08-27 07:51:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 699 transitions. [2021-08-27 07:51:27,024 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 699 transitions. Word has length 73 [2021-08-27 07:51:27,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:27,027 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 699 transitions. [2021-08-27 07:51:27,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 07:51:27,027 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 699 transitions. [2021-08-27 07:51:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-08-27 07:51:27,028 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:27,028 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:27,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:27,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:27,244 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:27,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1678990932, now seen corresponding path program 1 times [2021-08-27 07:51:27,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:27,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248904585] [2021-08-27 07:51:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:27,245 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:27,246 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) [2021-08-27 07:51:27,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-08-27 07:51:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:28,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:51:28,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:29,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:29,231 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:29,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248904585] [2021-08-27 07:51:29,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248904585] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:29,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:29,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:51:29,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505766960] [2021-08-27 07:51:29,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:51:29,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:51:29,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:51:29,233 INFO L87 Difference]: Start difference. First operand 589 states and 699 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-27 07:51:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:29,254 INFO L93 Difference]: Finished difference Result 693 states and 826 transitions. [2021-08-27 07:51:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:51:29,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2021-08-27 07:51:29,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:29,256 INFO L225 Difference]: With dead ends: 693 [2021-08-27 07:51:29,256 INFO L226 Difference]: Without dead ends: 693 [2021-08-27 07:51:29,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:51:29,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-08-27 07:51:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 663. [2021-08-27 07:51:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 531 states have (on average 1.1996233521657251) internal successors, (637), 539 states have internal predecessors, (637), 69 states have call successors, (69), 56 states have call predecessors, (69), 62 states have return successors, (87), 68 states have call predecessors, (87), 63 states have call successors, (87) [2021-08-27 07:51:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 793 transitions. [2021-08-27 07:51:29,264 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 793 transitions. Word has length 73 [2021-08-27 07:51:29,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:29,264 INFO L470 AbstractCegarLoop]: Abstraction has 663 states and 793 transitions. [2021-08-27 07:51:29,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-27 07:51:29,264 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 793 transitions. [2021-08-27 07:51:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-27 07:51:29,265 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:29,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:29,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-08-27 07:51:29,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:29,481 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1831590663, now seen corresponding path program 1 times [2021-08-27 07:51:29,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:29,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670066769] [2021-08-27 07:51:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:29,482 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:29,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:29,483 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) [2021-08-27 07:51:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-08-27 07:51:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:31,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:31,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:31,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:31,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:31,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670066769] [2021-08-27 07:51:31,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670066769] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:31,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:31,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:31,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890770333] [2021-08-27 07:51:31,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:31,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:31,731 INFO L87 Difference]: Start difference. First operand 663 states and 793 transitions. Second operand has 17 states, 17 states have (on average 4.647058823529412) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:32,042 INFO L93 Difference]: Finished difference Result 729 states and 864 transitions. [2021-08-27 07:51:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.647058823529412) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-08-27 07:51:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:32,044 INFO L225 Difference]: With dead ends: 729 [2021-08-27 07:51:32,044 INFO L226 Difference]: Without dead ends: 647 [2021-08-27 07:51:32,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 173.9ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-08-27 07:51:32,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 623. [2021-08-27 07:51:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 497 states have (on average 1.199195171026157) internal successors, (596), 505 states have internal predecessors, (596), 66 states have call successors, (66), 53 states have call predecessors, (66), 59 states have return successors, (84), 65 states have call predecessors, (84), 60 states have call successors, (84) [2021-08-27 07:51:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 746 transitions. [2021-08-27 07:51:32,049 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 746 transitions. Word has length 68 [2021-08-27 07:51:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:32,049 INFO L470 AbstractCegarLoop]: Abstraction has 623 states and 746 transitions. [2021-08-27 07:51:32,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.647058823529412) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:32,049 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 746 transitions. [2021-08-27 07:51:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-27 07:51:32,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:32,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:32,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:32,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:32,251 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash -2093633698, now seen corresponding path program 1 times [2021-08-27 07:51:32,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:32,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851020176] [2021-08-27 07:51:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:32,251 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:32,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:32,252 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) [2021-08-27 07:51:32,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-08-27 07:51:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:33,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 07:51:33,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:34,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:34,561 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:34,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851020176] [2021-08-27 07:51:34,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851020176] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:34,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:34,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-08-27 07:51:34,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863951271] [2021-08-27 07:51:34,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 07:51:34,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 07:51:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-08-27 07:51:34,562 INFO L87 Difference]: Start difference. First operand 623 states and 746 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 14 states have internal predecessors, (78), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-08-27 07:51:34,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:34,691 INFO L93 Difference]: Finished difference Result 633 states and 755 transitions. [2021-08-27 07:51:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:51:34,692 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 14 states have internal predecessors, (78), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2021-08-27 07:51:34,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:34,693 INFO L225 Difference]: With dead ends: 633 [2021-08-27 07:51:34,693 INFO L226 Difference]: Without dead ends: 566 [2021-08-27 07:51:34,693 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 188.8ms TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-08-27 07:51:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-08-27 07:51:34,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2021-08-27 07:51:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 450 states have (on average 1.1955555555555555) internal successors, (538), 458 states have internal predecessors, (538), 61 states have call successors, (61), 48 states have call predecessors, (61), 54 states have return successors, (79), 60 states have call predecessors, (79), 55 states have call successors, (79) [2021-08-27 07:51:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 678 transitions. [2021-08-27 07:51:34,700 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 678 transitions. Word has length 71 [2021-08-27 07:51:34,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:34,700 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 678 transitions. [2021-08-27 07:51:34,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 14 states have internal predecessors, (78), 4 states have call successors, (10), 2 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 3 states have call successors, (11) [2021-08-27 07:51:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 678 transitions. [2021-08-27 07:51:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-08-27 07:51:34,701 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:34,701 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:34,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-08-27 07:51:34,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:34,917 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:34,917 INFO L82 PathProgramCache]: Analyzing trace with hash -894709895, now seen corresponding path program 1 times [2021-08-27 07:51:34,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:34,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761289500] [2021-08-27 07:51:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:34,917 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:34,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:34,918 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) [2021-08-27 07:51:34,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-08-27 07:51:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:36,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:51:36,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:36,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:37,203 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:37,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761289500] [2021-08-27 07:51:37,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761289500] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:37,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:37,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-08-27 07:51:37,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804233237] [2021-08-27 07:51:37,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 07:51:37,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 07:51:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:51:37,204 INFO L87 Difference]: Start difference. First operand 566 states and 678 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 07:51:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:37,795 INFO L93 Difference]: Finished difference Result 591 states and 703 transitions. [2021-08-27 07:51:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:51:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 82 [2021-08-27 07:51:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:37,797 INFO L225 Difference]: With dead ends: 591 [2021-08-27 07:51:37,797 INFO L226 Difference]: Without dead ends: 591 [2021-08-27 07:51:37,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:51:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-08-27 07:51:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 550. [2021-08-27 07:51:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 437 states have (on average 1.194508009153318) internal successors, (522), 444 states have internal predecessors, (522), 60 states have call successors, (60), 48 states have call predecessors, (60), 52 states have return successors, (71), 58 states have call predecessors, (71), 54 states have call successors, (71) [2021-08-27 07:51:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 653 transitions. [2021-08-27 07:51:37,802 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 653 transitions. Word has length 82 [2021-08-27 07:51:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:37,803 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 653 transitions. [2021-08-27 07:51:37,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 07:51:37,803 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 653 transitions. [2021-08-27 07:51:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-27 07:51:37,804 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:37,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:37,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-08-27 07:51:38,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:38,004 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1594482170, now seen corresponding path program 1 times [2021-08-27 07:51:38,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:38,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079344328] [2021-08-27 07:51:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:38,005 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:38,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:38,006 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) [2021-08-27 07:51:38,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-08-27 07:51:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:39,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:51:39,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:40,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:40,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:40,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079344328] [2021-08-27 07:51:40,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079344328] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:40,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:40,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-27 07:51:40,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896993406] [2021-08-27 07:51:40,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:51:40,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:40,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:51:40,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:51:40,234 INFO L87 Difference]: Start difference. First operand 550 states and 653 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-08-27 07:51:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:40,267 INFO L93 Difference]: Finished difference Result 611 states and 753 transitions. [2021-08-27 07:51:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:51:40,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2021-08-27 07:51:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:40,269 INFO L225 Difference]: With dead ends: 611 [2021-08-27 07:51:40,269 INFO L226 Difference]: Without dead ends: 611 [2021-08-27 07:51:40,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:51:40,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-08-27 07:51:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 516. [2021-08-27 07:51:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 414 states have (on average 1.1932367149758454) internal successors, (494), 420 states have internal predecessors, (494), 53 states have call successors, (53), 42 states have call predecessors, (53), 48 states have return successors, (62), 54 states have call predecessors, (62), 48 states have call successors, (62) [2021-08-27 07:51:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 609 transitions. [2021-08-27 07:51:40,275 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 609 transitions. Word has length 83 [2021-08-27 07:51:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:40,275 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 609 transitions. [2021-08-27 07:51:40,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-08-27 07:51:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 609 transitions. [2021-08-27 07:51:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-27 07:51:40,276 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:40,276 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:40,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:40,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:40,480 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1775350014, now seen corresponding path program 1 times [2021-08-27 07:51:40,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:40,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833237315] [2021-08-27 07:51:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:40,482 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:40,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:40,483 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:40,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-08-27 07:51:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:42,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 07:51:42,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:42,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:42,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:42,904 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:42,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833237315] [2021-08-27 07:51:42,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833237315] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:42,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:42,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-08-27 07:51:42,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067591163] [2021-08-27 07:51:42,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 07:51:42,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 07:51:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:51:42,905 INFO L87 Difference]: Start difference. First operand 516 states and 609 transitions. Second operand has 16 states, 16 states have (on average 5.75) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) [2021-08-27 07:51:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:43,141 INFO L93 Difference]: Finished difference Result 598 states and 695 transitions. [2021-08-27 07:51:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 07:51:43,142 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.75) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) Word has length 88 [2021-08-27 07:51:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:43,143 INFO L225 Difference]: With dead ends: 598 [2021-08-27 07:51:43,143 INFO L226 Difference]: Without dead ends: 562 [2021-08-27 07:51:43,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 195.6ms TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2021-08-27 07:51:43,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-08-27 07:51:43,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 516. [2021-08-27 07:51:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 414 states have (on average 1.1908212560386473) internal successors, (493), 420 states have internal predecessors, (493), 53 states have call successors, (53), 42 states have call predecessors, (53), 48 states have return successors, (62), 54 states have call predecessors, (62), 48 states have call successors, (62) [2021-08-27 07:51:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 608 transitions. [2021-08-27 07:51:43,149 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 608 transitions. Word has length 88 [2021-08-27 07:51:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:43,150 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 608 transitions. [2021-08-27 07:51:43,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.75) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 3 states have call successors, (12) [2021-08-27 07:51:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 608 transitions. [2021-08-27 07:51:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-27 07:51:43,151 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:43,151 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:43,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:43,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:43,361 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:43,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:43,362 INFO L82 PathProgramCache]: Analyzing trace with hash -516864991, now seen corresponding path program 1 times [2021-08-27 07:51:43,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:43,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292555037] [2021-08-27 07:51:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:43,362 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:43,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:43,364 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:43,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-08-27 07:51:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:45,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:51:45,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:45,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:45,948 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:45,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292555037] [2021-08-27 07:51:45,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292555037] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:45,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:45,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-08-27 07:51:45,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592175157] [2021-08-27 07:51:45,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 07:51:45,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 07:51:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:51:45,953 INFO L87 Difference]: Start difference. First operand 516 states and 608 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-08-27 07:51:46,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:46,504 INFO L93 Difference]: Finished difference Result 731 states and 846 transitions. [2021-08-27 07:51:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:51:46,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) Word has length 84 [2021-08-27 07:51:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:46,506 INFO L225 Difference]: With dead ends: 731 [2021-08-27 07:51:46,506 INFO L226 Difference]: Without dead ends: 731 [2021-08-27 07:51:46,507 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 42.2ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:51:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-08-27 07:51:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 632. [2021-08-27 07:51:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 507 states have (on average 1.1854043392504932) internal successors, (601), 516 states have internal predecessors, (601), 61 states have call successors, (61), 54 states have call predecessors, (61), 63 states have return successors, (73), 62 states have call predecessors, (73), 56 states have call successors, (73) [2021-08-27 07:51:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 735 transitions. [2021-08-27 07:51:46,513 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 735 transitions. Word has length 84 [2021-08-27 07:51:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:46,514 INFO L470 AbstractCegarLoop]: Abstraction has 632 states and 735 transitions. [2021-08-27 07:51:46,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 7 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-08-27 07:51:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 735 transitions. [2021-08-27 07:51:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-27 07:51:46,514 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:46,514 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:46,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:46,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:46,715 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:46,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:46,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1881717760, now seen corresponding path program 1 times [2021-08-27 07:51:46,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:46,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232166585] [2021-08-27 07:51:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:46,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:46,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:46,717 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:46,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-08-27 07:51:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:51:48,689 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 07:51:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:51:49,018 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 07:51:49,019 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 07:51:49,019 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-08-27 07:51:49,021 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 07:51:49,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:49,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:49,243 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 07:51:49,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 07:51:49 BoogieIcfgContainer [2021-08-27 07:51:49,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 07:51:49,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 07:51:49,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 07:51:49,382 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 07:51:49,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:16" (3/4) ... [2021-08-27 07:51:49,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 07:51:49,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 07:51:49,386 INFO L168 Benchmark]: Toolchain (without parser) took 94234.35 ms. Allocated memory was 52.4 MB in the beginning and 497.0 MB in the end (delta: 444.6 MB). Free memory was 28.0 MB in the beginning and 423.8 MB in the end (delta: -395.8 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,386 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:51:49,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.28 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 34.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,387 INFO L168 Benchmark]: Boogie Preprocessor took 118.47 ms. Allocated memory is still 62.9 MB. Free memory was 34.6 MB in the beginning and 30.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,387 INFO L168 Benchmark]: RCFGBuilder took 1159.31 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 40.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,387 INFO L168 Benchmark]: TraceAbstraction took 92469.17 ms. Allocated memory was 75.5 MB in the beginning and 497.0 MB in the end (delta: 421.5 MB). Free memory was 40.3 MB in the beginning and 424.8 MB in the end (delta: -384.5 MB). Peak memory consumption was 308.1 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,387 INFO L168 Benchmark]: Witness Printer took 3.34 ms. Allocated memory is still 497.0 MB. Free memory was 424.8 MB in the beginning and 423.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:49,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.28 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 34.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.47 ms. Allocated memory is still 62.9 MB. Free memory was 34.6 MB in the beginning and 30.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1159.31 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 40.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92469.17 ms. Allocated memory was 75.5 MB in the beginning and 497.0 MB in the end (delta: 421.5 MB). Free memory was 40.3 MB in the beginning and 424.8 MB in the end (delta: -384.5 MB). Peak memory consumption was 308.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.34 ms. Allocated memory is still 497.0 MB. Free memory was 424.8 MB in the beginning and 423.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [\old(compRegistered)=11, \old(customIrp)=41, \old(DC)=20, \old(DiskController)=21, \old(Executive)=25, \old(FlConfigCallBack)=15, \old(FloppyDiskPeripheral)=29, \old(FloppyThread)=28, \old(IPC)=39, \old(KernelMode)=19, \old(lowerDriverReturn)=24, \old(MaximumInterfaceType)=36, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=23, \old(MPR1)=42, \old(MPR3)=37, \old(myStatus)=8, \old(NP)=40, \old(PagingMutex)=10, \old(PagingReferenceCount)=31, \old(pended)=38, \old(s)=26, \old(setEventCalled)=34, \old(SKIP1)=18, \old(SKIP2)=32, \old(Suspended)=9, \old(UNLOADED)=16, 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] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=45, irp_choice=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, pirp=45, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L705] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, 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] [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=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] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=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] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=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 TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=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 FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L157] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=50, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=50, DisketteExtension__FloppyThread=56, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=57, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=55, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(Object)=2147483648, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=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_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=0, 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] [L265] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=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=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=0, 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] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=0, 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] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=1, 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] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=47, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=47, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=45, KernelMode=0, lcontext=58, 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_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=1, 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] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=1, 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] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=1, 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] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=44, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=45, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=44, DeviceObject__DeviceExtension=50, DiskController=0, disketteExtension=50, disketteExtension__ArcName=49, disketteExtension__ArcName__Length=52, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=51, disketteExtension__InterfaceString__Buffer=46, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2147483648, disketteExtension__TargetObject=47, doneEvent=53, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=54, IPC=7, Irp=45, Irp__CurrentLocation=1, 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] [L767] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=44, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=45, 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=45, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=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=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: 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 31 procedures, 397 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 92291.7ms, OverallIterations: 51, TraceHistogramMax: 1, EmptinessCheckTime: 75.6ms, AutomataDifference: 11314.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 22879 SDtfs, 12571 SDslu, 89181 SDs, 0 SdLazy, 8797 SolverSat, 2095 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7524.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5515 GetRequests, 5098 SyntacticMatches, 0 SemanticMatches, 417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 3014.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1048occurred in iteration=19, InterpolantAutomatonStates: 413, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 750.9ms AutomataMinimizationTime, 50 MinimizatonAttempts, 1403 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1670.6ms SsaConstructionTime, 4516.8ms SatisfiabilityAnalysisTime, 20314.2ms InterpolantComputationTime, 2823 NumberOfCodeBlocks, 2823 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 5376 ConstructedInterpolants, 0 QuantifiedInterpolants, 11233 SizeOfPredicates, 71 NumberOfNonLiveVariables, 19304 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 100 InterpolantComputations, 100 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 [2021-08-27 07:51:49,442 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...