/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 19:42:39,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 19:42:39,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 19:42:39,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-14 19:42:39,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 19:42:39,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 19:42:39,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 19:42:39,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 19:42:39,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 19:42:39,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 19:42:39,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 19:42:39,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 19:42:39,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 19:42:39,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 19:42:39,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 19:42:39,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 19:42:39,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 19:42:39,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 19:42:39,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 19:42:39,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 19:42:39,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-14 19:42:39,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 19:42:39,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 19:42:39,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-14 19:42:39,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-14 19:42:39,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-14 19:42:39,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-14 19:42:39,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-14 19:42:39,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-14 19:42:39,766 INFO L138 SettingsManager]: * Use SBE=true [2022-02-14 19:42:39,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 19:42:39,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 19:42:39,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 19:42:39,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 19:42:39,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 19:42:39,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 19:42:39,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-14 19:42:39,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-14 19:42:39,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 19:42:39,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-14 19:42:39,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-14 19:42:39,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-14 19:42:39,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-14 19:42:39,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 19:42:39,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 19:42:39,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 19:42:39,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 19:42:39,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 19:42:39,958 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 19:42:39,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-02-14 19:42:40,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc55975/89f572cda4f0406d916bc4446038f14c/FLAG63cb27e3a [2022-02-14 19:42:40,431 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 19:42:40,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-02-14 19:42:40,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc55975/89f572cda4f0406d916bc4446038f14c/FLAG63cb27e3a [2022-02-14 19:42:40,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc55975/89f572cda4f0406d916bc4446038f14c [2022-02-14 19:42:40,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 19:42:40,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-14 19:42:40,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 19:42:40,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 19:42:40,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 19:42:40,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4169715d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40, skipping insertion in model container [2022-02-14 19:42:40,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 19:42:40,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 19:42:40,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-02-14 19:42:40,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 19:42:40,788 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 19:42:40,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-02-14 19:42:40,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 19:42:40,851 INFO L208 MainTranslator]: Completed translation [2022-02-14 19:42:40,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40 WrapperNode [2022-02-14 19:42:40,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 19:42:40,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 19:42:40,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 19:42:40,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 19:42:40,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 19:42:40,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 19:42:40,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 19:42:40,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 19:42:40,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (1/1) ... [2022-02-14 19:42:40,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 19:42:40,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 19:42:40,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-14 19:42:40,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-14 19:42:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-02-14 19:42:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-02-14 19:42:40,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-02-14 19:42:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-14 19:42:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-02-14 19:42:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-02-14 19:42:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 19:42:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 19:42:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 19:42:41,198 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 19:42:41,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 19:42:41,233 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,267 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,267 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,279 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,291 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,291 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,298 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,464 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-02-14 19:42:41,464 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-02-14 19:42:41,466 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-02-14 19:42:41,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-02-14 19:42:41,537 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,548 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-02-14 19:42:41,548 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-02-14 19:42:41,625 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,631 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,632 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,632 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,637 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,638 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,638 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,645 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,645 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,677 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,697 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-02-14 19:42:41,697 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-02-14 19:42:41,701 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,774 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-02-14 19:42:41,774 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-02-14 19:42:41,799 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,802 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,802 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,803 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,806 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,807 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,807 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-14 19:42:41,810 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-14 19:42:41,810 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-14 19:42:41,815 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 19:42:41,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 19:42:41,823 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-14 19:42:41,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 07:42:41 BoogieIcfgContainer [2022-02-14 19:42:41,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 19:42:41,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 19:42:41,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 19:42:41,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 19:42:41,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 07:42:40" (1/3) ... [2022-02-14 19:42:41,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773f1e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 07:42:41, skipping insertion in model container [2022-02-14 19:42:41,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 07:42:40" (2/3) ... [2022-02-14 19:42:41,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773f1e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 07:42:41, skipping insertion in model container [2022-02-14 19:42:41,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 07:42:41" (3/3) ... [2022-02-14 19:42:41,830 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2022-02-14 19:42:41,834 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-14 19:42:41,834 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 19:42:41,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 19:42:41,870 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-02-14 19:42:41,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 19:42:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 390 states, 288 states have (on average 1.46875) internal successors, (423), 315 states have internal predecessors, (423), 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) [2022-02-14 19:42:41,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-14 19:42:41,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:41,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 19:42:41,892 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1441300297, now seen corresponding path program 1 times [2022-02-14 19:42:41,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:41,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279936671] [2022-02-14 19:42:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:42,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:42,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279936671] [2022-02-14 19:42:42,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279936671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:42,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:42,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-14 19:42:42,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634589856] [2022-02-14 19:42:42,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:42,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-14 19:42:42,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:42,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-14 19:42:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-14 19:42:42,348 INFO L87 Difference]: Start difference. First operand has 390 states, 288 states have (on average 1.46875) internal successors, (423), 315 states have internal predecessors, (423), 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 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) [2022-02-14 19:42:43,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:43,387 INFO L93 Difference]: Finished difference Result 667 states and 981 transitions. [2022-02-14 19:42:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-14 19:42:43,389 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 [2022-02-14 19:42:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:43,398 INFO L225 Difference]: With dead ends: 667 [2022-02-14 19:42:43,398 INFO L226 Difference]: Without dead ends: 424 [2022-02-14 19:42:43,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-14 19:42:43,405 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 408 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:43,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 735 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:42:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-02-14 19:42:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2022-02-14 19:42:43,458 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) [2022-02-14 19:42:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2022-02-14 19:42:43,461 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2022-02-14 19:42:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:43,462 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2022-02-14 19:42:43,462 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) [2022-02-14 19:42:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2022-02-14 19:42:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-14 19:42:43,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:43,463 INFO L514 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] [2022-02-14 19:42:43,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-14 19:42:43,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:43,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1593270126, now seen corresponding path program 1 times [2022-02-14 19:42:43,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:43,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668929118] [2022-02-14 19:42:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:43,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:43,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:43,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668929118] [2022-02-14 19:42:43,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668929118] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:43,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:43,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 19:42:43,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873581943] [2022-02-14 19:42:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:43,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 19:42:43,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 19:42:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-14 19:42:43,596 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) [2022-02-14 19:42:44,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:44,801 INFO L93 Difference]: Finished difference Result 753 states and 1031 transitions. [2022-02-14 19:42:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-14 19:42:44,801 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 [2022-02-14 19:42:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:44,805 INFO L225 Difference]: With dead ends: 753 [2022-02-14 19:42:44,805 INFO L226 Difference]: Without dead ends: 588 [2022-02-14 19:42:44,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:44,807 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 825 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:44,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 926 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:42:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-02-14 19:42:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 527. [2022-02-14 19:42:44,841 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) [2022-02-14 19:42:44,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 719 transitions. [2022-02-14 19:42:44,843 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 719 transitions. Word has length 25 [2022-02-14 19:42:44,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:44,843 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 719 transitions. [2022-02-14 19:42:44,843 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) [2022-02-14 19:42:44,844 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 719 transitions. [2022-02-14 19:42:44,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-02-14 19:42:44,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:44,845 INFO L514 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] [2022-02-14 19:42:44,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-14 19:42:44,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:44,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:44,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1172469146, now seen corresponding path program 1 times [2022-02-14 19:42:44,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:44,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603908498] [2022-02-14 19:42:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:44,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:44,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:44,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:44,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603908498] [2022-02-14 19:42:44,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603908498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:44,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:44,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 19:42:44,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555001649] [2022-02-14 19:42:44,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:45,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 19:42:45,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:45,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 19:42:45,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-14 19:42:45,000 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) [2022-02-14 19:42:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:45,646 INFO L93 Difference]: Finished difference Result 699 states and 941 transitions. [2022-02-14 19:42:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-14 19:42:45,647 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 [2022-02-14 19:42:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:45,650 INFO L225 Difference]: With dead ends: 699 [2022-02-14 19:42:45,650 INFO L226 Difference]: Without dead ends: 678 [2022-02-14 19:42:45,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:45,651 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 946 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:45,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 609 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-14 19:42:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-02-14 19:42:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2022-02-14 19:42:45,684 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) [2022-02-14 19:42:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 802 transitions. [2022-02-14 19:42:45,689 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 802 transitions. Word has length 31 [2022-02-14 19:42:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:45,689 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 802 transitions. [2022-02-14 19:42:45,689 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) [2022-02-14 19:42:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 802 transitions. [2022-02-14 19:42:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-14 19:42:45,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:45,694 INFO L514 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] [2022-02-14 19:42:45,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-14 19:42:45,695 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:45,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1382361368, now seen corresponding path program 1 times [2022-02-14 19:42:45,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:45,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247488352] [2022-02-14 19:42:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:45,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:45,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:45,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247488352] [2022-02-14 19:42:45,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247488352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:45,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:45,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 19:42:45,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568394147] [2022-02-14 19:42:45,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:45,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 19:42:45,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 19:42:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-14 19:42:45,853 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) [2022-02-14 19:42:46,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:46,570 INFO L93 Difference]: Finished difference Result 1133 states and 1525 transitions. [2022-02-14 19:42:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-14 19:42:46,571 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 [2022-02-14 19:42:46,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:46,574 INFO L225 Difference]: With dead ends: 1133 [2022-02-14 19:42:46,575 INFO L226 Difference]: Without dead ends: 827 [2022-02-14 19:42:46,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:46,577 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 899 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:46,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 747 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-14 19:42:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-02-14 19:42:46,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 779. [2022-02-14 19:42:46,610 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) [2022-02-14 19:42:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2022-02-14 19:42:46,613 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 33 [2022-02-14 19:42:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:46,613 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2022-02-14 19:42:46,613 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) [2022-02-14 19:42:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2022-02-14 19:42:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-02-14 19:42:46,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:46,615 INFO L514 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] [2022-02-14 19:42:46,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-14 19:42:46,615 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:46,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:46,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1599360794, now seen corresponding path program 1 times [2022-02-14 19:42:46,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:46,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672739596] [2022-02-14 19:42:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:46,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:42:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:42:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:46,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:46,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672739596] [2022-02-14 19:42:46,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672739596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:46,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:46,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:42:46,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639814995] [2022-02-14 19:42:46,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:46,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:42:46,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:46,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:42:46,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:46,739 INFO L87 Difference]: Start difference. First operand 779 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-02-14 19:42:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:47,655 INFO L93 Difference]: Finished difference Result 881 states and 1187 transitions. [2022-02-14 19:42:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:42:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 3 states have internal predecessors, (26), 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 38 [2022-02-14 19:42:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:47,660 INFO L225 Difference]: With dead ends: 881 [2022-02-14 19:42:47,660 INFO L226 Difference]: Without dead ends: 876 [2022-02-14 19:42:47,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:42:47,663 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 893 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:47,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 1007 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:42:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-02-14 19:42:47,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 822. [2022-02-14 19:42:47,702 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) [2022-02-14 19:42:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1111 transitions. [2022-02-14 19:42:47,705 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1111 transitions. Word has length 38 [2022-02-14 19:42:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:47,707 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 1111 transitions. [2022-02-14 19:42:47,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-02-14 19:42:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1111 transitions. [2022-02-14 19:42:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-02-14 19:42:47,708 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:47,708 INFO L514 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] [2022-02-14 19:42:47,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-14 19:42:47,709 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1331372858, now seen corresponding path program 1 times [2022-02-14 19:42:47,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:47,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672453957] [2022-02-14 19:42:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:47,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:47,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:47,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:47,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672453957] [2022-02-14 19:42:47,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672453957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:47,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:47,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 19:42:47,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757871663] [2022-02-14 19:42:47,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:47,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 19:42:47,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:47,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 19:42:47,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-14 19:42:47,855 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) [2022-02-14 19:42:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:48,605 INFO L93 Difference]: Finished difference Result 856 states and 1153 transitions. [2022-02-14 19:42:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-14 19:42:48,605 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 [2022-02-14 19:42:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:48,609 INFO L225 Difference]: With dead ends: 856 [2022-02-14 19:42:48,609 INFO L226 Difference]: Without dead ends: 853 [2022-02-14 19:42:48,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-14 19:42:48,610 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 488 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:48,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 726 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-14 19:42:48,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-02-14 19:42:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 833. [2022-02-14 19:42:48,641 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) [2022-02-14 19:42:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1125 transitions. [2022-02-14 19:42:48,644 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1125 transitions. Word has length 38 [2022-02-14 19:42:48,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:48,644 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1125 transitions. [2022-02-14 19:42:48,644 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) [2022-02-14 19:42:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1125 transitions. [2022-02-14 19:42:48,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-14 19:42:48,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:48,645 INFO L514 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] [2022-02-14 19:42:48,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-14 19:42:48,645 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1882942142, now seen corresponding path program 1 times [2022-02-14 19:42:48,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:48,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075045756] [2022-02-14 19:42:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:48,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:42:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:42:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:48,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:48,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075045756] [2022-02-14 19:42:48,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075045756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:48,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:48,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:42:48,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994304796] [2022-02-14 19:42:48,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:48,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:42:48,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:48,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:42:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:48,890 INFO L87 Difference]: Start difference. First operand 833 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 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) [2022-02-14 19:42:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:50,218 INFO L93 Difference]: Finished difference Result 896 states and 1203 transitions. [2022-02-14 19:42:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:42:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 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 39 [2022-02-14 19:42:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:50,221 INFO L225 Difference]: With dead ends: 896 [2022-02-14 19:42:50,222 INFO L226 Difference]: Without dead ends: 887 [2022-02-14 19:42:50,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-02-14 19:42:50,225 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 1873 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:50,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1888 Valid, 879 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:42:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-02-14 19:42:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-02-14 19:42:50,273 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) [2022-02-14 19:42:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1123 transitions. [2022-02-14 19:42:50,278 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1123 transitions. Word has length 39 [2022-02-14 19:42:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:50,278 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1123 transitions. [2022-02-14 19:42:50,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 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) [2022-02-14 19:42:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1123 transitions. [2022-02-14 19:42:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-14 19:42:50,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:50,280 INFO L514 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] [2022-02-14 19:42:50,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-14 19:42:50,280 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash 124492433, now seen corresponding path program 1 times [2022-02-14 19:42:50,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:50,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334078198] [2022-02-14 19:42:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:50,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-02-14 19:42:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:42:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:50,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:50,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334078198] [2022-02-14 19:42:50,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334078198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:50,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:50,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:42:50,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306448294] [2022-02-14 19:42:50,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:50,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:42:50,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:50,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:42:50,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:50,505 INFO L87 Difference]: Start difference. First operand 833 states and 1123 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 7 states have internal predecessors, (29), 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) [2022-02-14 19:42:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:52,011 INFO L93 Difference]: Finished difference Result 896 states and 1201 transitions. [2022-02-14 19:42:52,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:42:52,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 7 states have internal predecessors, (29), 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 41 [2022-02-14 19:42:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:52,015 INFO L225 Difference]: With dead ends: 896 [2022-02-14 19:42:52,016 INFO L226 Difference]: Without dead ends: 887 [2022-02-14 19:42:52,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-02-14 19:42:52,016 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 959 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:52,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 1004 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:42:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-02-14 19:42:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-02-14 19:42:52,056 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) [2022-02-14 19:42:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1121 transitions. [2022-02-14 19:42:52,059 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1121 transitions. Word has length 41 [2022-02-14 19:42:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:52,060 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1121 transitions. [2022-02-14 19:42:52,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 7 states have internal predecessors, (29), 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) [2022-02-14 19:42:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1121 transitions. [2022-02-14 19:42:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-14 19:42:52,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:52,061 INFO L514 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] [2022-02-14 19:42:52,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-14 19:42:52,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash -380785908, now seen corresponding path program 1 times [2022-02-14 19:42:52,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:52,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351232957] [2022-02-14 19:42:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-02-14 19:42:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:42:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:52,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:52,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351232957] [2022-02-14 19:42:52,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351232957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:52,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:52,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:42:52,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561740833] [2022-02-14 19:42:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:52,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:42:52,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:52,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:42:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:42:52,223 INFO L87 Difference]: Start difference. First operand 833 states and 1121 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) [2022-02-14 19:42:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:53,273 INFO L93 Difference]: Finished difference Result 896 states and 1199 transitions. [2022-02-14 19:42:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 19:42:53,274 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 [2022-02-14 19:42:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:53,277 INFO L225 Difference]: With dead ends: 896 [2022-02-14 19:42:53,277 INFO L226 Difference]: Without dead ends: 881 [2022-02-14 19:42:53,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:53,278 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 539 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:53,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 1467 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:42:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-02-14 19:42:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 831. [2022-02-14 19:42:53,318 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) [2022-02-14 19:42:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1117 transitions. [2022-02-14 19:42:53,321 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1117 transitions. Word has length 42 [2022-02-14 19:42:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:53,321 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1117 transitions. [2022-02-14 19:42:53,321 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) [2022-02-14 19:42:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1117 transitions. [2022-02-14 19:42:53,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-14 19:42:53,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:53,322 INFO L514 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] [2022-02-14 19:42:53,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-14 19:42:53,322 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:53,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:53,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1226727659, now seen corresponding path program 1 times [2022-02-14 19:42:53,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:53,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492946181] [2022-02-14 19:42:53,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:53,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:42:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:42:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:53,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:53,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492946181] [2022-02-14 19:42:53,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492946181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:53,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:53,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:42:53,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854499704] [2022-02-14 19:42:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:53,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:42:53,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:42:53,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:42:53,494 INFO L87 Difference]: Start difference. First operand 831 states and 1117 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) [2022-02-14 19:42:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:54,513 INFO L93 Difference]: Finished difference Result 894 states and 1195 transitions. [2022-02-14 19:42:54,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 19:42:54,513 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 [2022-02-14 19:42:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:54,516 INFO L225 Difference]: With dead ends: 894 [2022-02-14 19:42:54,516 INFO L226 Difference]: Without dead ends: 874 [2022-02-14 19:42:54,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:54,517 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 538 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:54,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 1409 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:42:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-02-14 19:42:54,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 824. [2022-02-14 19:42:54,564 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) [2022-02-14 19:42:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1108 transitions. [2022-02-14 19:42:54,567 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1108 transitions. Word has length 41 [2022-02-14 19:42:54,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:54,568 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1108 transitions. [2022-02-14 19:42:54,568 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) [2022-02-14 19:42:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1108 transitions. [2022-02-14 19:42:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-14 19:42:54,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:54,569 INFO L514 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] [2022-02-14 19:42:54,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-14 19:42:54,569 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1082082785, now seen corresponding path program 1 times [2022-02-14 19:42:54,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:54,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864064157] [2022-02-14 19:42:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:54,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:54,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:42:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:54,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:54,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864064157] [2022-02-14 19:42:54,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864064157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:54,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:54,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:42:54,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299553508] [2022-02-14 19:42:54,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:54,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:42:54,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:54,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:42:54,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:54,714 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) [2022-02-14 19:42:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:56,000 INFO L93 Difference]: Finished difference Result 871 states and 1163 transitions. [2022-02-14 19:42:56,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:42:56,001 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 [2022-02-14 19:42:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:56,004 INFO L225 Difference]: With dead ends: 871 [2022-02-14 19:42:56,004 INFO L226 Difference]: Without dead ends: 849 [2022-02-14 19:42:56,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:56,005 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 235 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:56,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1026 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:42:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-02-14 19:42:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 826. [2022-02-14 19:42:56,044 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) [2022-02-14 19:42:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1110 transitions. [2022-02-14 19:42:56,046 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1110 transitions. Word has length 42 [2022-02-14 19:42:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:56,046 INFO L470 AbstractCegarLoop]: Abstraction has 826 states and 1110 transitions. [2022-02-14 19:42:56,046 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) [2022-02-14 19:42:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1110 transitions. [2022-02-14 19:42:56,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-14 19:42:56,047 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:56,047 INFO L514 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] [2022-02-14 19:42:56,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-14 19:42:56,048 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:56,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1086081538, now seen corresponding path program 1 times [2022-02-14 19:42:56,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:56,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868572826] [2022-02-14 19:42:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:56,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-14 19:42:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:56,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:56,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868572826] [2022-02-14 19:42:56,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868572826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:56,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:56,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-14 19:42:56,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980617090] [2022-02-14 19:42:56,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:56,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-14 19:42:56,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:56,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-14 19:42:56,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-02-14 19:42:56,163 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) [2022-02-14 19:42:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:57,222 INFO L93 Difference]: Finished difference Result 922 states and 1228 transitions. [2022-02-14 19:42:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:42:57,222 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 [2022-02-14 19:42:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:57,225 INFO L225 Difference]: With dead ends: 922 [2022-02-14 19:42:57,225 INFO L226 Difference]: Without dead ends: 854 [2022-02-14 19:42:57,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:42:57,226 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 681 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:57,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 926 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:42:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-02-14 19:42:57,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 830. [2022-02-14 19:42:57,264 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) [2022-02-14 19:42:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-02-14 19:42:57,267 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 44 [2022-02-14 19:42:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:57,267 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-02-14 19:42:57,267 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) [2022-02-14 19:42:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-02-14 19:42:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-14 19:42:57,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:57,268 INFO L514 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] [2022-02-14 19:42:57,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-14 19:42:57,268 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 294854863, now seen corresponding path program 1 times [2022-02-14 19:42:57,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:57,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27007246] [2022-02-14 19:42:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:57,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:57,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:57,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:42:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:57,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:57,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27007246] [2022-02-14 19:42:57,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27007246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:57,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:57,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:42:57,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586977184] [2022-02-14 19:42:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:57,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:42:57,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:42:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:57,412 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) [2022-02-14 19:42:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:58,698 INFO L93 Difference]: Finished difference Result 874 states and 1166 transitions. [2022-02-14 19:42:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-14 19:42:58,699 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 [2022-02-14 19:42:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:58,701 INFO L225 Difference]: With dead ends: 874 [2022-02-14 19:42:58,702 INFO L226 Difference]: Without dead ends: 852 [2022-02-14 19:42:58,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:42:58,702 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 233 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:58,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1033 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:42:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-02-14 19:42:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 830. [2022-02-14 19:42:58,740 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) [2022-02-14 19:42:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-02-14 19:42:58,742 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 43 [2022-02-14 19:42:58,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:58,742 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-02-14 19:42:58,742 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) [2022-02-14 19:42:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-02-14 19:42:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-14 19:42:58,743 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:58,743 INFO L514 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] [2022-02-14 19:42:58,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-14 19:42:58,744 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2130865808, now seen corresponding path program 1 times [2022-02-14 19:42:58,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:58,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403726428] [2022-02-14 19:42:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:58,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:42:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-14 19:42:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:58,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:58,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403726428] [2022-02-14 19:42:58,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403726428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:58,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:58,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:42:58,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287849661] [2022-02-14 19:42:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:58,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:42:58,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:42:58,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:42:58,874 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) [2022-02-14 19:42:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:42:59,711 INFO L93 Difference]: Finished difference Result 875 states and 1168 transitions. [2022-02-14 19:42:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:42:59,711 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 [2022-02-14 19:42:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:42:59,714 INFO L225 Difference]: With dead ends: 875 [2022-02-14 19:42:59,714 INFO L226 Difference]: Without dead ends: 857 [2022-02-14 19:42:59,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:42:59,715 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 700 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:42:59,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 1219 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:42:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-02-14 19:42:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 828. [2022-02-14 19:42:59,754 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) [2022-02-14 19:42:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1111 transitions. [2022-02-14 19:42:59,756 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1111 transitions. Word has length 45 [2022-02-14 19:42:59,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:42:59,757 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1111 transitions. [2022-02-14 19:42:59,757 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) [2022-02-14 19:42:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1111 transitions. [2022-02-14 19:42:59,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-14 19:42:59,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:42:59,758 INFO L514 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] [2022-02-14 19:42:59,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-14 19:42:59,759 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:42:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:42:59,759 INFO L85 PathProgramCache]: Analyzing trace with hash -144394818, now seen corresponding path program 1 times [2022-02-14 19:42:59,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:42:59,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687911505] [2022-02-14 19:42:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:42:59,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:42:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:42:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:42:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:42:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:42:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-14 19:42:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:42:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:42:59,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:42:59,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687911505] [2022-02-14 19:42:59,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687911505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:42:59,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:42:59,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:42:59,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267261082] [2022-02-14 19:42:59,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:42:59,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:42:59,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:42:59,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:42:59,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:42:59,895 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) [2022-02-14 19:43:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:00,888 INFO L93 Difference]: Finished difference Result 884 states and 1181 transitions. [2022-02-14 19:43:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-14 19:43:00,889 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 [2022-02-14 19:43:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:00,891 INFO L225 Difference]: With dead ends: 884 [2022-02-14 19:43:00,891 INFO L226 Difference]: Without dead ends: 836 [2022-02-14 19:43:00,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-14 19:43:00,892 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 671 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:00,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 904 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-02-14 19:43:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 806. [2022-02-14 19:43:00,929 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) [2022-02-14 19:43:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1079 transitions. [2022-02-14 19:43:00,931 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1079 transitions. Word has length 46 [2022-02-14 19:43:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:00,932 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 1079 transitions. [2022-02-14 19:43:00,932 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) [2022-02-14 19:43:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1079 transitions. [2022-02-14 19:43:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-14 19:43:00,933 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:00,933 INFO L514 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] [2022-02-14 19:43:00,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-14 19:43:00,933 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:00,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2121731367, now seen corresponding path program 1 times [2022-02-14 19:43:00,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:00,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982811933] [2022-02-14 19:43:00,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:00,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-14 19:43:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:01,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:01,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982811933] [2022-02-14 19:43:01,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982811933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:01,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:01,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-14 19:43:01,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559412390] [2022-02-14 19:43:01,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:01,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-14 19:43:01,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:01,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-14 19:43:01,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-14 19:43:01,041 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) [2022-02-14 19:43:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:02,379 INFO L93 Difference]: Finished difference Result 1165 states and 1573 transitions. [2022-02-14 19:43:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:43:02,379 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 [2022-02-14 19:43:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:02,382 INFO L225 Difference]: With dead ends: 1165 [2022-02-14 19:43:02,383 INFO L226 Difference]: Without dead ends: 1162 [2022-02-14 19:43:02,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:02,383 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 435 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:02,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 793 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-14 19:43:02,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-02-14 19:43:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 919. [2022-02-14 19:43:02,434 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) [2022-02-14 19:43:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1233 transitions. [2022-02-14 19:43:02,437 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1233 transitions. Word has length 47 [2022-02-14 19:43:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:02,437 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1233 transitions. [2022-02-14 19:43:02,437 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) [2022-02-14 19:43:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1233 transitions. [2022-02-14 19:43:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-14 19:43:02,439 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:02,439 INFO L514 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] [2022-02-14 19:43:02,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-14 19:43:02,439 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1847199717, now seen corresponding path program 1 times [2022-02-14 19:43:02,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:02,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411793634] [2022-02-14 19:43:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-14 19:43:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:02,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:02,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411793634] [2022-02-14 19:43:02,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411793634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:02,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:02,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:02,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660903036] [2022-02-14 19:43:02,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:02,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:02,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:02,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:02,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:02,608 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) [2022-02-14 19:43:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:03,715 INFO L93 Difference]: Finished difference Result 964 states and 1286 transitions. [2022-02-14 19:43:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-14 19:43:03,718 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 [2022-02-14 19:43:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:03,721 INFO L225 Difference]: With dead ends: 964 [2022-02-14 19:43:03,721 INFO L226 Difference]: Without dead ends: 946 [2022-02-14 19:43:03,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:03,722 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 256 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:03,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1250 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:03,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-02-14 19:43:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 917. [2022-02-14 19:43:03,769 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) [2022-02-14 19:43:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1229 transitions. [2022-02-14 19:43:03,771 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1229 transitions. Word has length 47 [2022-02-14 19:43:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:03,771 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1229 transitions. [2022-02-14 19:43:03,771 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) [2022-02-14 19:43:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1229 transitions. [2022-02-14 19:43:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-14 19:43:03,772 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:03,772 INFO L514 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] [2022-02-14 19:43:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-14 19:43:03,772 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1587222462, now seen corresponding path program 1 times [2022-02-14 19:43:03,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:03,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436991886] [2022-02-14 19:43:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:03,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-14 19:43:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:03,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:03,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436991886] [2022-02-14 19:43:03,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436991886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:03,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:03,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:03,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796293157] [2022-02-14 19:43:03,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:03,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:03,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:03,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:03,958 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) [2022-02-14 19:43:05,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:05,276 INFO L93 Difference]: Finished difference Result 1517 states and 1994 transitions. [2022-02-14 19:43:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:05,277 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 [2022-02-14 19:43:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:05,287 INFO L225 Difference]: With dead ends: 1517 [2022-02-14 19:43:05,287 INFO L226 Difference]: Without dead ends: 967 [2022-02-14 19:43:05,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2022-02-14 19:43:05,289 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 2033 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:05,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2045 Valid, 851 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:05,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-02-14 19:43:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 908. [2022-02-14 19:43:05,337 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) [2022-02-14 19:43:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1208 transitions. [2022-02-14 19:43:05,339 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1208 transitions. Word has length 48 [2022-02-14 19:43:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:05,339 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1208 transitions. [2022-02-14 19:43:05,340 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) [2022-02-14 19:43:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1208 transitions. [2022-02-14 19:43:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-14 19:43:05,341 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:05,341 INFO L514 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] [2022-02-14 19:43:05,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-14 19:43:05,341 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2120912959, now seen corresponding path program 1 times [2022-02-14 19:43:05,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:05,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753068846] [2022-02-14 19:43:05,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:05,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:05,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:05,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753068846] [2022-02-14 19:43:05,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753068846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:05,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:05,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:05,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451290972] [2022-02-14 19:43:05,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:05,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:05,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:05,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:05,496 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) [2022-02-14 19:43:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:06,906 INFO L93 Difference]: Finished difference Result 1185 states and 1572 transitions. [2022-02-14 19:43:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-14 19:43:06,906 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 [2022-02-14 19:43:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:06,915 INFO L225 Difference]: With dead ends: 1185 [2022-02-14 19:43:06,915 INFO L226 Difference]: Without dead ends: 1106 [2022-02-14 19:43:06,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-02-14 19:43:06,917 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1656 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:06,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1660 Valid, 1319 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-02-14 19:43:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 963. [2022-02-14 19:43:06,974 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) [2022-02-14 19:43:06,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1281 transitions. [2022-02-14 19:43:06,976 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1281 transitions. Word has length 50 [2022-02-14 19:43:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:06,976 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1281 transitions. [2022-02-14 19:43:06,976 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) [2022-02-14 19:43:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1281 transitions. [2022-02-14 19:43:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-14 19:43:06,979 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:06,980 INFO L514 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] [2022-02-14 19:43:06,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-14 19:43:06,980 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1876216893, now seen corresponding path program 1 times [2022-02-14 19:43:06,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:06,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496031149] [2022-02-14 19:43:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:06,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-14 19:43:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:07,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:07,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496031149] [2022-02-14 19:43:07,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496031149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:07,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:07,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:07,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828045154] [2022-02-14 19:43:07,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:07,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:07,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:07,135 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) [2022-02-14 19:43:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:08,109 INFO L93 Difference]: Finished difference Result 1010 states and 1334 transitions. [2022-02-14 19:43:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:08,109 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 [2022-02-14 19:43:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:08,112 INFO L225 Difference]: With dead ends: 1010 [2022-02-14 19:43:08,113 INFO L226 Difference]: Without dead ends: 990 [2022-02-14 19:43:08,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:08,113 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 843 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:08,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 1382 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-02-14 19:43:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 963. [2022-02-14 19:43:08,168 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) [2022-02-14 19:43:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1269 transitions. [2022-02-14 19:43:08,170 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1269 transitions. Word has length 50 [2022-02-14 19:43:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:08,170 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1269 transitions. [2022-02-14 19:43:08,170 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) [2022-02-14 19:43:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1269 transitions. [2022-02-14 19:43:08,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-14 19:43:08,171 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:08,171 INFO L514 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] [2022-02-14 19:43:08,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-14 19:43:08,171 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash -993977049, now seen corresponding path program 1 times [2022-02-14 19:43:08,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:08,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029418936] [2022-02-14 19:43:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-14 19:43:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:08,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:08,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029418936] [2022-02-14 19:43:08,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029418936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:08,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:08,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:43:08,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248429693] [2022-02-14 19:43:08,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:08,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:43:08,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:43:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:43:08,306 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) [2022-02-14 19:43:09,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:09,188 INFO L93 Difference]: Finished difference Result 1072 states and 1383 transitions. [2022-02-14 19:43:09,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 19:43:09,189 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 [2022-02-14 19:43:09,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:09,191 INFO L225 Difference]: With dead ends: 1072 [2022-02-14 19:43:09,191 INFO L226 Difference]: Without dead ends: 716 [2022-02-14 19:43:09,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:09,193 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 923 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:09,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 879 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-14 19:43:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-02-14 19:43:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 654. [2022-02-14 19:43:09,237 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) [2022-02-14 19:43:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2022-02-14 19:43:09,238 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 52 [2022-02-14 19:43:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:09,238 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2022-02-14 19:43:09,239 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) [2022-02-14 19:43:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2022-02-14 19:43:09,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-14 19:43:09,239 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:09,239 INFO L514 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] [2022-02-14 19:43:09,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-14 19:43:09,240 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:09,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:09,240 INFO L85 PathProgramCache]: Analyzing trace with hash -752682980, now seen corresponding path program 1 times [2022-02-14 19:43:09,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:09,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45976893] [2022-02-14 19:43:09,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:09,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:09,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:09,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45976893] [2022-02-14 19:43:09,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45976893] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:09,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:09,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:09,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72304401] [2022-02-14 19:43:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:09,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:09,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:09,426 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), 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) [2022-02-14 19:43:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:10,992 INFO L93 Difference]: Finished difference Result 712 states and 898 transitions. [2022-02-14 19:43:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:10,994 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 [2022-02-14 19:43:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:10,996 INFO L225 Difference]: With dead ends: 712 [2022-02-14 19:43:10,996 INFO L226 Difference]: Without dead ends: 690 [2022-02-14 19:43:10,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-14 19:43:10,997 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 297 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:10,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1103 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-14 19:43:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-02-14 19:43:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 655. [2022-02-14 19:43:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 524 states have (on average 1.2709923664122138) internal successors, (666), 534 states have internal predecessors, (666), 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) [2022-02-14 19:43:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 830 transitions. [2022-02-14 19:43:11,040 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 830 transitions. Word has length 51 [2022-02-14 19:43:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:11,041 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 830 transitions. [2022-02-14 19:43:11,041 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) [2022-02-14 19:43:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 830 transitions. [2022-02-14 19:43:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-14 19:43:11,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:11,043 INFO L514 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] [2022-02-14 19:43:11,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-14 19:43:11,043 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:11,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:11,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1676814037, now seen corresponding path program 1 times [2022-02-14 19:43:11,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:11,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435770537] [2022-02-14 19:43:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:11,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:11,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435770537] [2022-02-14 19:43:11,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435770537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:11,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:11,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:11,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915268838] [2022-02-14 19:43:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:11,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:11,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:11,223 INFO L87 Difference]: Start difference. First operand 655 states and 830 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) [2022-02-14 19:43:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:12,419 INFO L93 Difference]: Finished difference Result 707 states and 889 transitions. [2022-02-14 19:43:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:12,420 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 [2022-02-14 19:43:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:12,422 INFO L225 Difference]: With dead ends: 707 [2022-02-14 19:43:12,422 INFO L226 Difference]: Without dead ends: 679 [2022-02-14 19:43:12,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-02-14 19:43:12,423 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 531 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:12,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 1555 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-02-14 19:43:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 647. [2022-02-14 19:43:12,469 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) [2022-02-14 19:43:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 817 transitions. [2022-02-14 19:43:12,470 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 817 transitions. Word has length 51 [2022-02-14 19:43:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:12,471 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 817 transitions. [2022-02-14 19:43:12,471 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) [2022-02-14 19:43:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 817 transitions. [2022-02-14 19:43:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-14 19:43:12,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:12,472 INFO L514 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] [2022-02-14 19:43:12,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-14 19:43:12,472 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1294250438, now seen corresponding path program 1 times [2022-02-14 19:43:12,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:12,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3338386] [2022-02-14 19:43:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:12,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:12,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:12,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3338386] [2022-02-14 19:43:12,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3338386] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:12,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:12,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:43:12,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775442989] [2022-02-14 19:43:12,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:12,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:43:12,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:12,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:43:12,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:43:12,613 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) [2022-02-14 19:43:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:13,559 INFO L93 Difference]: Finished difference Result 902 states and 1158 transitions. [2022-02-14 19:43:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:43:13,559 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 [2022-02-14 19:43:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:13,562 INFO L225 Difference]: With dead ends: 902 [2022-02-14 19:43:13,562 INFO L226 Difference]: Without dead ends: 884 [2022-02-14 19:43:13,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:13,563 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 720 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:13,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 1012 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:13,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-02-14 19:43:13,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 708. [2022-02-14 19:43:13,611 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) [2022-02-14 19:43:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 891 transitions. [2022-02-14 19:43:13,613 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 891 transitions. Word has length 52 [2022-02-14 19:43:13,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:13,613 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 891 transitions. [2022-02-14 19:43:13,613 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) [2022-02-14 19:43:13,613 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 891 transitions. [2022-02-14 19:43:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-14 19:43:13,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:13,614 INFO L514 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] [2022-02-14 19:43:13,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-14 19:43:13,614 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:13,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1555648314, now seen corresponding path program 1 times [2022-02-14 19:43:13,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:13,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271785584] [2022-02-14 19:43:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:13,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:13,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:13,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:13,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271785584] [2022-02-14 19:43:13,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271785584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:13,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:13,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:13,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294342531] [2022-02-14 19:43:13,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:13,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:13,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:13,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:13,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:13,785 INFO L87 Difference]: Start difference. First operand 708 states and 891 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-14 19:43:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:14,689 INFO L93 Difference]: Finished difference Result 1148 states and 1477 transitions. [2022-02-14 19:43:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 19:43:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-02-14 19:43:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:14,692 INFO L225 Difference]: With dead ends: 1148 [2022-02-14 19:43:14,692 INFO L226 Difference]: Without dead ends: 771 [2022-02-14 19:43:14,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:14,694 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1096 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:14,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 817 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-14 19:43:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-02-14 19:43:14,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 719. [2022-02-14 19:43:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 579 states have (on average 1.2556131260794474) internal successors, (727), 582 states have internal predecessors, (727), 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) [2022-02-14 19:43:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 907 transitions. [2022-02-14 19:43:14,746 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 907 transitions. Word has length 52 [2022-02-14 19:43:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:14,746 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 907 transitions. [2022-02-14 19:43:14,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-14 19:43:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 907 transitions. [2022-02-14 19:43:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-14 19:43:14,747 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:14,747 INFO L514 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] [2022-02-14 19:43:14,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-14 19:43:14,747 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:14,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1150971080, now seen corresponding path program 1 times [2022-02-14 19:43:14,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:14,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198743330] [2022-02-14 19:43:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:14,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:14,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198743330] [2022-02-14 19:43:14,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198743330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:14,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:14,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-14 19:43:14,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577665425] [2022-02-14 19:43:14,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:14,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-14 19:43:14,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-14 19:43:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:14,912 INFO L87 Difference]: Start difference. First operand 719 states and 907 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 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) [2022-02-14 19:43:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:16,123 INFO L93 Difference]: Finished difference Result 787 states and 988 transitions. [2022-02-14 19:43:16,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-14 19:43:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 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 [2022-02-14 19:43:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:16,126 INFO L225 Difference]: With dead ends: 787 [2022-02-14 19:43:16,126 INFO L226 Difference]: Without dead ends: 705 [2022-02-14 19:43:16,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-02-14 19:43:16,127 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1202 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:16,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 1068 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-02-14 19:43:16,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 657. [2022-02-14 19:43:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 525 states have (on average 1.2571428571428571) internal successors, (660), 535 states have internal predecessors, (660), 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) [2022-02-14 19:43:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2022-02-14 19:43:16,183 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 52 [2022-02-14 19:43:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:16,183 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2022-02-14 19:43:16,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 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) [2022-02-14 19:43:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2022-02-14 19:43:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-14 19:43:16,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:16,184 INFO L514 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] [2022-02-14 19:43:16,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-14 19:43:16,184 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:16,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1919936960, now seen corresponding path program 1 times [2022-02-14 19:43:16,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:16,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114351214] [2022-02-14 19:43:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:16,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:16,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114351214] [2022-02-14 19:43:16,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114351214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:16,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:16,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-14 19:43:16,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213236818] [2022-02-14 19:43:16,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:16,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-14 19:43:16,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:16,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-14 19:43:16,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:16,375 INFO L87 Difference]: Start difference. First operand 657 states and 825 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) [2022-02-14 19:43:17,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:17,459 INFO L93 Difference]: Finished difference Result 702 states and 877 transitions. [2022-02-14 19:43:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:17,459 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 [2022-02-14 19:43:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:17,461 INFO L225 Difference]: With dead ends: 702 [2022-02-14 19:43:17,461 INFO L226 Difference]: Without dead ends: 698 [2022-02-14 19:43:17,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:17,462 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 642 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:17,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 1736 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-02-14 19:43:17,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 665. [2022-02-14 19:43:17,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 532 states have (on average 1.2537593984962405) internal successors, (667), 542 states have internal predecessors, (667), 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) [2022-02-14 19:43:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 833 transitions. [2022-02-14 19:43:17,510 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 833 transitions. Word has length 53 [2022-02-14 19:43:17,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:17,510 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 833 transitions. [2022-02-14 19:43:17,510 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) [2022-02-14 19:43:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 833 transitions. [2022-02-14 19:43:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-14 19:43:17,511 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:17,511 INFO L514 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] [2022-02-14 19:43:17,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-14 19:43:17,512 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:17,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:17,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1919660130, now seen corresponding path program 1 times [2022-02-14 19:43:17,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:17,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773104609] [2022-02-14 19:43:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:17,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:17,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:17,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773104609] [2022-02-14 19:43:17,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773104609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:17,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:17,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-14 19:43:17,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687041608] [2022-02-14 19:43:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:17,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-14 19:43:17,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-14 19:43:17,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:17,694 INFO L87 Difference]: Start difference. First operand 665 states and 833 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) [2022-02-14 19:43:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:18,771 INFO L93 Difference]: Finished difference Result 743 states and 936 transitions. [2022-02-14 19:43:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:18,771 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 [2022-02-14 19:43:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:18,774 INFO L225 Difference]: With dead ends: 743 [2022-02-14 19:43:18,774 INFO L226 Difference]: Without dead ends: 728 [2022-02-14 19:43:18,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:18,775 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 530 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:18,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 1800 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-02-14 19:43:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 671. [2022-02-14 19:43:18,823 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) [2022-02-14 19:43:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 845 transitions. [2022-02-14 19:43:18,825 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 845 transitions. Word has length 53 [2022-02-14 19:43:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:18,825 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 845 transitions. [2022-02-14 19:43:18,825 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) [2022-02-14 19:43:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 845 transitions. [2022-02-14 19:43:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-14 19:43:18,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:18,826 INFO L514 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] [2022-02-14 19:43:18,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-14 19:43:18,826 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash 196330826, now seen corresponding path program 1 times [2022-02-14 19:43:18,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:18,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235268688] [2022-02-14 19:43:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:18,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:18,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235268688] [2022-02-14 19:43:18,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235268688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:18,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:18,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:18,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470188403] [2022-02-14 19:43:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:18,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:18,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:18,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:18,972 INFO L87 Difference]: Start difference. First operand 671 states and 845 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) [2022-02-14 19:43:20,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:20,550 INFO L93 Difference]: Finished difference Result 854 states and 1095 transitions. [2022-02-14 19:43:20,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-14 19:43:20,550 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 [2022-02-14 19:43:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:20,553 INFO L225 Difference]: With dead ends: 854 [2022-02-14 19:43:20,553 INFO L226 Difference]: Without dead ends: 836 [2022-02-14 19:43:20,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-02-14 19:43:20,554 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 1054 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:20,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1069 Valid, 979 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:43:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-02-14 19:43:20,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 655. [2022-02-14 19:43:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 524 states have (on average 1.2557251908396947) internal successors, (658), 534 states have internal predecessors, (658), 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) [2022-02-14 19:43:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 821 transitions. [2022-02-14 19:43:20,615 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 821 transitions. Word has length 54 [2022-02-14 19:43:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:20,615 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 821 transitions. [2022-02-14 19:43:20,615 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) [2022-02-14 19:43:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 821 transitions. [2022-02-14 19:43:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-14 19:43:20,616 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:20,616 INFO L514 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] [2022-02-14 19:43:20,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-14 19:43:20,617 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:20,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1186901667, now seen corresponding path program 1 times [2022-02-14 19:43:20,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:20,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908844146] [2022-02-14 19:43:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-14 19:43:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-14 19:43:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:20,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:20,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:20,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908844146] [2022-02-14 19:43:20,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908844146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:20,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:20,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:20,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154609623] [2022-02-14 19:43:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:20,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:20,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:20,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:20,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:20,776 INFO L87 Difference]: Start difference. First operand 655 states and 821 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) [2022-02-14 19:43:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:21,988 INFO L93 Difference]: Finished difference Result 701 states and 873 transitions. [2022-02-14 19:43:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:21,988 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 [2022-02-14 19:43:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:21,996 INFO L225 Difference]: With dead ends: 701 [2022-02-14 19:43:21,996 INFO L226 Difference]: Without dead ends: 673 [2022-02-14 19:43:21,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:21,997 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 501 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:21,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 1764 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:43:21,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-02-14 19:43:22,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 643. [2022-02-14 19:43:22,045 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) [2022-02-14 19:43:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2022-02-14 19:43:22,046 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 55 [2022-02-14 19:43:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:22,047 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2022-02-14 19:43:22,047 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) [2022-02-14 19:43:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2022-02-14 19:43:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-14 19:43:22,048 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:22,048 INFO L514 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] [2022-02-14 19:43:22,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-14 19:43:22,048 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:22,048 INFO L85 PathProgramCache]: Analyzing trace with hash -345883252, now seen corresponding path program 1 times [2022-02-14 19:43:22,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:22,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247656745] [2022-02-14 19:43:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:22,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-14 19:43:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-02-14 19:43:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:22,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:22,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247656745] [2022-02-14 19:43:22,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247656745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:22,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:22,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 19:43:22,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14750564] [2022-02-14 19:43:22,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:22,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 19:43:22,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 19:43:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-14 19:43:22,159 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-02-14 19:43:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:22,937 INFO L93 Difference]: Finished difference Result 991 states and 1256 transitions. [2022-02-14 19:43:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-14 19:43:22,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-02-14 19:43:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:22,939 INFO L225 Difference]: With dead ends: 991 [2022-02-14 19:43:22,940 INFO L226 Difference]: Without dead ends: 682 [2022-02-14 19:43:22,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:22,941 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 594 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:22,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [600 Valid, 860 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-14 19:43:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-02-14 19:43:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 648. [2022-02-14 19:43:22,993 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) [2022-02-14 19:43:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 811 transitions. [2022-02-14 19:43:22,994 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 811 transitions. Word has length 61 [2022-02-14 19:43:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:22,994 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 811 transitions. [2022-02-14 19:43:22,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-02-14 19:43:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 811 transitions. [2022-02-14 19:43:22,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:22,995 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:22,995 INFO L514 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] [2022-02-14 19:43:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-14 19:43:22,995 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 643685188, now seen corresponding path program 1 times [2022-02-14 19:43:22,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:22,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362960589] [2022-02-14 19:43:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:22,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-02-14 19:43:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:23,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:23,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362960589] [2022-02-14 19:43:23,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362960589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:23,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:23,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:23,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377438298] [2022-02-14 19:43:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:23,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:23,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:23,206 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) [2022-02-14 19:43:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:24,339 INFO L93 Difference]: Finished difference Result 945 states and 1195 transitions. [2022-02-14 19:43:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 19:43:24,339 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 [2022-02-14 19:43:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:24,341 INFO L225 Difference]: With dead ends: 945 [2022-02-14 19:43:24,341 INFO L226 Difference]: Without dead ends: 631 [2022-02-14 19:43:24,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:24,343 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 281 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:24,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1176 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-02-14 19:43:24,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 593. [2022-02-14 19:43:24,391 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) [2022-02-14 19:43:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2022-02-14 19:43:24,392 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 64 [2022-02-14 19:43:24,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:24,393 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2022-02-14 19:43:24,393 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) [2022-02-14 19:43:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2022-02-14 19:43:24,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-14 19:43:24,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:24,394 INFO L514 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] [2022-02-14 19:43:24,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-14 19:43:24,394 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:24,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1886131064, now seen corresponding path program 1 times [2022-02-14 19:43:24,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:24,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172379781] [2022-02-14 19:43:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:24,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-14 19:43:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:24,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:24,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172379781] [2022-02-14 19:43:24,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172379781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:24,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:24,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:24,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747141525] [2022-02-14 19:43:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:24,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:24,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:24,589 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) [2022-02-14 19:43:25,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:25,821 INFO L93 Difference]: Finished difference Result 638 states and 785 transitions. [2022-02-14 19:43:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-14 19:43:25,822 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 [2022-02-14 19:43:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:25,824 INFO L225 Difference]: With dead ends: 638 [2022-02-14 19:43:25,824 INFO L226 Difference]: Without dead ends: 617 [2022-02-14 19:43:25,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-02-14 19:43:25,825 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 838 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:25,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 1249 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-02-14 19:43:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2022-02-14 19:43:25,870 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) [2022-02-14 19:43:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 729 transitions. [2022-02-14 19:43:25,871 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 729 transitions. Word has length 59 [2022-02-14 19:43:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:25,871 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 729 transitions. [2022-02-14 19:43:25,871 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) [2022-02-14 19:43:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 729 transitions. [2022-02-14 19:43:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-14 19:43:25,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:25,872 INFO L514 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] [2022-02-14 19:43:25,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-14 19:43:25,872 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1134993715, now seen corresponding path program 1 times [2022-02-14 19:43:25,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:25,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901585696] [2022-02-14 19:43:25,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-02-14 19:43:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:26,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:26,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901585696] [2022-02-14 19:43:26,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901585696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:26,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:26,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-14 19:43:26,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280350247] [2022-02-14 19:43:26,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:26,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-14 19:43:26,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:26,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-14 19:43:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:26,032 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) [2022-02-14 19:43:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:27,254 INFO L93 Difference]: Finished difference Result 631 states and 776 transitions. [2022-02-14 19:43:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-14 19:43:27,254 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 [2022-02-14 19:43:27,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:27,256 INFO L225 Difference]: With dead ends: 631 [2022-02-14 19:43:27,256 INFO L226 Difference]: Without dead ends: 613 [2022-02-14 19:43:27,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:27,257 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 260 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:27,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 1682 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-14 19:43:27,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-02-14 19:43:27,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 586. [2022-02-14 19:43:27,308 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) [2022-02-14 19:43:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 723 transitions. [2022-02-14 19:43:27,309 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 723 transitions. Word has length 58 [2022-02-14 19:43:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:27,310 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 723 transitions. [2022-02-14 19:43:27,310 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) [2022-02-14 19:43:27,310 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 723 transitions. [2022-02-14 19:43:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-14 19:43:27,311 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:27,311 INFO L514 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] [2022-02-14 19:43:27,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-14 19:43:27,311 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:27,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1265645689, now seen corresponding path program 1 times [2022-02-14 19:43:27,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:27,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367173400] [2022-02-14 19:43:27,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:27,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-14 19:43:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-14 19:43:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:27,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:27,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367173400] [2022-02-14 19:43:27,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367173400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:27,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:27,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:27,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295790836] [2022-02-14 19:43:27,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:27,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:27,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:27,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:27,472 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) [2022-02-14 19:43:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:28,487 INFO L93 Difference]: Finished difference Result 644 states and 788 transitions. [2022-02-14 19:43:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:28,487 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 [2022-02-14 19:43:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:28,489 INFO L225 Difference]: With dead ends: 644 [2022-02-14 19:43:28,489 INFO L226 Difference]: Without dead ends: 620 [2022-02-14 19:43:28,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:28,490 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 475 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:28,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 979 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-14 19:43:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 581. [2022-02-14 19:43:28,534 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) [2022-02-14 19:43:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 715 transitions. [2022-02-14 19:43:28,535 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 715 transitions. Word has length 60 [2022-02-14 19:43:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:28,535 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 715 transitions. [2022-02-14 19:43:28,535 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) [2022-02-14 19:43:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 715 transitions. [2022-02-14 19:43:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-14 19:43:28,536 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:28,536 INFO L514 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] [2022-02-14 19:43:28,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-14 19:43:28,537 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash -187427669, now seen corresponding path program 1 times [2022-02-14 19:43:28,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:28,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839745254] [2022-02-14 19:43:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:28,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-02-14 19:43:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:28,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:28,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839745254] [2022-02-14 19:43:28,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839745254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:28,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:28,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:28,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601447664] [2022-02-14 19:43:28,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:28,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:28,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:28,699 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) [2022-02-14 19:43:29,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:29,955 INFO L93 Difference]: Finished difference Result 873 states and 1087 transitions. [2022-02-14 19:43:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:29,956 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 [2022-02-14 19:43:29,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:29,970 INFO L225 Difference]: With dead ends: 873 [2022-02-14 19:43:29,970 INFO L226 Difference]: Without dead ends: 614 [2022-02-14 19:43:29,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2022-02-14 19:43:29,972 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 692 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:29,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 1073 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-02-14 19:43:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 581. [2022-02-14 19:43:30,017 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) [2022-02-14 19:43:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 713 transitions. [2022-02-14 19:43:30,018 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 713 transitions. Word has length 68 [2022-02-14 19:43:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:30,020 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 713 transitions. [2022-02-14 19:43:30,020 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) [2022-02-14 19:43:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 713 transitions. [2022-02-14 19:43:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-14 19:43:30,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:30,021 INFO L514 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] [2022-02-14 19:43:30,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-14 19:43:30,021 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:30,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:30,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1214846552, now seen corresponding path program 1 times [2022-02-14 19:43:30,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:30,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19156349] [2022-02-14 19:43:30,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:30,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:30,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:30,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19156349] [2022-02-14 19:43:30,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19156349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:30,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:30,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:30,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026017] [2022-02-14 19:43:30,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:30,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:30,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:30,190 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) [2022-02-14 19:43:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:31,345 INFO L93 Difference]: Finished difference Result 626 states and 763 transitions. [2022-02-14 19:43:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 19:43:31,345 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 [2022-02-14 19:43:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:31,347 INFO L225 Difference]: With dead ends: 626 [2022-02-14 19:43:31,347 INFO L226 Difference]: Without dead ends: 600 [2022-02-14 19:43:31,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-02-14 19:43:31,348 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 520 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:31,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 1034 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-14 19:43:31,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-02-14 19:43:31,393 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) [2022-02-14 19:43:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 703 transitions. [2022-02-14 19:43:31,394 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 703 transitions. Word has length 63 [2022-02-14 19:43:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:31,394 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 703 transitions. [2022-02-14 19:43:31,395 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) [2022-02-14 19:43:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 703 transitions. [2022-02-14 19:43:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-14 19:43:31,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:31,395 INFO L514 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] [2022-02-14 19:43:31,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-14 19:43:31,396 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1866318114, now seen corresponding path program 1 times [2022-02-14 19:43:31,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:31,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638346727] [2022-02-14 19:43:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:31,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-14 19:43:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:31,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:31,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638346727] [2022-02-14 19:43:31,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638346727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:31,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:31,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-14 19:43:31,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793295759] [2022-02-14 19:43:31,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:31,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-14 19:43:31,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-14 19:43:31,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-14 19:43:31,539 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) [2022-02-14 19:43:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:32,569 INFO L93 Difference]: Finished difference Result 695 states and 844 transitions. [2022-02-14 19:43:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 19:43:32,569 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 [2022-02-14 19:43:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:32,571 INFO L225 Difference]: With dead ends: 695 [2022-02-14 19:43:32,571 INFO L226 Difference]: Without dead ends: 603 [2022-02-14 19:43:32,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:32,572 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 507 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:32,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 898 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-02-14 19:43:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 577. [2022-02-14 19:43:32,629 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) [2022-02-14 19:43:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 707 transitions. [2022-02-14 19:43:32,631 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 707 transitions. Word has length 63 [2022-02-14 19:43:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:32,632 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 707 transitions. [2022-02-14 19:43:32,632 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) [2022-02-14 19:43:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 707 transitions. [2022-02-14 19:43:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-14 19:43:32,633 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:32,633 INFO L514 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] [2022-02-14 19:43:32,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-14 19:43:32,633 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:32,633 INFO L85 PathProgramCache]: Analyzing trace with hash -148851615, now seen corresponding path program 1 times [2022-02-14 19:43:32,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:32,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989914681] [2022-02-14 19:43:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-14 19:43:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:32,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:32,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989914681] [2022-02-14 19:43:32,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989914681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:32,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:32,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:32,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238640244] [2022-02-14 19:43:32,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:32,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:32,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:32,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:32,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:32,793 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) [2022-02-14 19:43:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:33,867 INFO L93 Difference]: Finished difference Result 610 states and 745 transitions. [2022-02-14 19:43:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:33,868 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 [2022-02-14 19:43:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:33,869 INFO L225 Difference]: With dead ends: 610 [2022-02-14 19:43:33,869 INFO L226 Difference]: Without dead ends: 586 [2022-02-14 19:43:33,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-02-14 19:43:33,870 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 560 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:33,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 1028 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-02-14 19:43:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 563. [2022-02-14 19:43:33,913 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) [2022-02-14 19:43:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 688 transitions. [2022-02-14 19:43:33,914 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 688 transitions. Word has length 63 [2022-02-14 19:43:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:33,914 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 688 transitions. [2022-02-14 19:43:33,915 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) [2022-02-14 19:43:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 688 transitions. [2022-02-14 19:43:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:33,915 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:33,915 INFO L514 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] [2022-02-14 19:43:33,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-14 19:43:33,916 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2009973241, now seen corresponding path program 1 times [2022-02-14 19:43:33,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:33,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341250398] [2022-02-14 19:43:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-14 19:43:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:43:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:34,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:34,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341250398] [2022-02-14 19:43:34,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341250398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:34,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:34,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:34,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385971171] [2022-02-14 19:43:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:34,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:34,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:34,059 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) [2022-02-14 19:43:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:35,402 INFO L93 Difference]: Finished difference Result 1351 states and 1624 transitions. [2022-02-14 19:43:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-14 19:43:35,402 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 [2022-02-14 19:43:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:35,405 INFO L225 Difference]: With dead ends: 1351 [2022-02-14 19:43:35,405 INFO L226 Difference]: Without dead ends: 848 [2022-02-14 19:43:35,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2022-02-14 19:43:35,406 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1301 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:35,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1314 Valid, 780 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-14 19:43:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-02-14 19:43:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 719. [2022-02-14 19:43:35,467 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) [2022-02-14 19:43:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 864 transitions. [2022-02-14 19:43:35,468 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 864 transitions. Word has length 64 [2022-02-14 19:43:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:35,468 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 864 transitions. [2022-02-14 19:43:35,468 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) [2022-02-14 19:43:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 864 transitions. [2022-02-14 19:43:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:35,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:35,469 INFO L514 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] [2022-02-14 19:43:35,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-14 19:43:35,469 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:35,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash -15828535, now seen corresponding path program 1 times [2022-02-14 19:43:35,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:35,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335627542] [2022-02-14 19:43:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-14 19:43:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:43:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:35,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:35,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335627542] [2022-02-14 19:43:35,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335627542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:35,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:35,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:35,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336464179] [2022-02-14 19:43:35,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:35,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:35,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:35,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:35,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:35,615 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) [2022-02-14 19:43:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:36,578 INFO L93 Difference]: Finished difference Result 786 states and 943 transitions. [2022-02-14 19:43:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:36,579 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 [2022-02-14 19:43:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:36,580 INFO L225 Difference]: With dead ends: 786 [2022-02-14 19:43:36,581 INFO L226 Difference]: Without dead ends: 754 [2022-02-14 19:43:36,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:36,581 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 412 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:36,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 848 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:36,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-02-14 19:43:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 692. [2022-02-14 19:43:36,649 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) [2022-02-14 19:43:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 834 transitions. [2022-02-14 19:43:36,650 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 834 transitions. Word has length 64 [2022-02-14 19:43:36,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:36,650 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 834 transitions. [2022-02-14 19:43:36,650 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) [2022-02-14 19:43:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 834 transitions. [2022-02-14 19:43:36,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-14 19:43:36,651 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:36,651 INFO L514 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] [2022-02-14 19:43:36,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-14 19:43:36,651 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:36,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash 289333813, now seen corresponding path program 1 times [2022-02-14 19:43:36,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:36,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606363813] [2022-02-14 19:43:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:36,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:36,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:36,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606363813] [2022-02-14 19:43:36,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606363813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:36,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:36,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:36,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109524966] [2022-02-14 19:43:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:36,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:36,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:36,795 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) [2022-02-14 19:43:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:37,807 INFO L93 Difference]: Finished difference Result 766 states and 920 transitions. [2022-02-14 19:43:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:37,808 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 [2022-02-14 19:43:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:37,809 INFO L225 Difference]: With dead ends: 766 [2022-02-14 19:43:37,809 INFO L226 Difference]: Without dead ends: 745 [2022-02-14 19:43:37,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:37,814 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 610 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:37,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 1729 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:37,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-02-14 19:43:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 688. [2022-02-14 19:43:37,874 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) [2022-02-14 19:43:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 828 transitions. [2022-02-14 19:43:37,875 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 828 transitions. Word has length 63 [2022-02-14 19:43:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:37,875 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 828 transitions. [2022-02-14 19:43:37,875 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) [2022-02-14 19:43:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 828 transitions. [2022-02-14 19:43:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-14 19:43:37,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:37,876 INFO L514 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] [2022-02-14 19:43:37,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-14 19:43:37,876 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -423899630, now seen corresponding path program 1 times [2022-02-14 19:43:37,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:37,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282790854] [2022-02-14 19:43:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-02-14 19:43:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:38,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:38,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282790854] [2022-02-14 19:43:38,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282790854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:38,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:38,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:38,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967625047] [2022-02-14 19:43:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:38,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:38,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:38,052 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) [2022-02-14 19:43:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:39,015 INFO L93 Difference]: Finished difference Result 1014 states and 1230 transitions. [2022-02-14 19:43:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-14 19:43:39,015 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 [2022-02-14 19:43:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:39,017 INFO L225 Difference]: With dead ends: 1014 [2022-02-14 19:43:39,017 INFO L226 Difference]: Without dead ends: 788 [2022-02-14 19:43:39,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:39,018 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 416 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:39,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1554 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-02-14 19:43:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 688. [2022-02-14 19:43:39,079 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) [2022-02-14 19:43:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 826 transitions. [2022-02-14 19:43:39,080 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 826 transitions. Word has length 71 [2022-02-14 19:43:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:39,080 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 826 transitions. [2022-02-14 19:43:39,080 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) [2022-02-14 19:43:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 826 transitions. [2022-02-14 19:43:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:39,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:39,081 INFO L514 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] [2022-02-14 19:43:39,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-14 19:43:39,081 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash 755059221, now seen corresponding path program 1 times [2022-02-14 19:43:39,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:39,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401686564] [2022-02-14 19:43:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-14 19:43:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:39,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:39,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401686564] [2022-02-14 19:43:39,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401686564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:39,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:39,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-14 19:43:39,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376988938] [2022-02-14 19:43:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:39,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-14 19:43:39,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:39,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-14 19:43:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:39,254 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) [2022-02-14 19:43:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:40,133 INFO L93 Difference]: Finished difference Result 756 states and 906 transitions. [2022-02-14 19:43:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:40,134 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 [2022-02-14 19:43:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:40,136 INFO L225 Difference]: With dead ends: 756 [2022-02-14 19:43:40,136 INFO L226 Difference]: Without dead ends: 734 [2022-02-14 19:43:40,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:40,137 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 488 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:40,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1477 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-02-14 19:43:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 644. [2022-02-14 19:43:40,195 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) [2022-02-14 19:43:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 773 transitions. [2022-02-14 19:43:40,196 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 773 transitions. Word has length 64 [2022-02-14 19:43:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:40,196 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 773 transitions. [2022-02-14 19:43:40,196 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) [2022-02-14 19:43:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 773 transitions. [2022-02-14 19:43:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:40,197 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:40,197 INFO L514 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] [2022-02-14 19:43:40,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-14 19:43:40,197 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash -774955897, now seen corresponding path program 1 times [2022-02-14 19:43:40,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:40,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159385470] [2022-02-14 19:43:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:40,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:40,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:40,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159385470] [2022-02-14 19:43:40,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159385470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:40,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:40,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:40,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651253511] [2022-02-14 19:43:40,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:40,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:40,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:40,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:40,385 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) [2022-02-14 19:43:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:41,405 INFO L93 Difference]: Finished difference Result 708 states and 847 transitions. [2022-02-14 19:43:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:41,406 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 [2022-02-14 19:43:41,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:41,407 INFO L225 Difference]: With dead ends: 708 [2022-02-14 19:43:41,408 INFO L226 Difference]: Without dead ends: 686 [2022-02-14 19:43:41,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:41,408 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 458 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:41,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1662 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-02-14 19:43:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 639. [2022-02-14 19:43:41,473 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) [2022-02-14 19:43:41,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 766 transitions. [2022-02-14 19:43:41,474 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 766 transitions. Word has length 64 [2022-02-14 19:43:41,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:41,475 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 766 transitions. [2022-02-14 19:43:41,475 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) [2022-02-14 19:43:41,475 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 766 transitions. [2022-02-14 19:43:41,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-14 19:43:41,475 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:41,475 INFO L514 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] [2022-02-14 19:43:41,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-14 19:43:41,476 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1705067367, now seen corresponding path program 1 times [2022-02-14 19:43:41,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:41,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158434935] [2022-02-14 19:43:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:41,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:41,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158434935] [2022-02-14 19:43:41,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158434935] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:41,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:41,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:41,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2577431] [2022-02-14 19:43:41,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:41,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:41,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:41,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:41,633 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) [2022-02-14 19:43:42,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:42,517 INFO L93 Difference]: Finished difference Result 703 states and 840 transitions. [2022-02-14 19:43:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:42,517 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 [2022-02-14 19:43:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:42,519 INFO L225 Difference]: With dead ends: 703 [2022-02-14 19:43:42,519 INFO L226 Difference]: Without dead ends: 682 [2022-02-14 19:43:42,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:42,520 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 500 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:42,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 1596 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:42,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-02-14 19:43:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 635. [2022-02-14 19:43:42,576 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) [2022-02-14 19:43:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 760 transitions. [2022-02-14 19:43:42,577 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 760 transitions. Word has length 64 [2022-02-14 19:43:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:42,577 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 760 transitions. [2022-02-14 19:43:42,577 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) [2022-02-14 19:43:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 760 transitions. [2022-02-14 19:43:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-14 19:43:42,578 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:42,578 INFO L514 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] [2022-02-14 19:43:42,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-14 19:43:42,578 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:42,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:42,579 INFO L85 PathProgramCache]: Analyzing trace with hash -234049940, now seen corresponding path program 1 times [2022-02-14 19:43:42,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:42,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827192660] [2022-02-14 19:43:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:42,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-02-14 19:43:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:42,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:42,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827192660] [2022-02-14 19:43:42,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827192660] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:42,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:42,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-14 19:43:42,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097913014] [2022-02-14 19:43:42,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:42,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-14 19:43:42,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-14 19:43:42,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-14 19:43:42,707 INFO L87 Difference]: Start difference. First operand 635 states and 760 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-02-14 19:43:43,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:43,486 INFO L93 Difference]: Finished difference Result 1079 states and 1309 transitions. [2022-02-14 19:43:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-14 19:43:43,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-02-14 19:43:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:43,495 INFO L225 Difference]: With dead ends: 1079 [2022-02-14 19:43:43,495 INFO L226 Difference]: Without dead ends: 826 [2022-02-14 19:43:43,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-02-14 19:43:43,498 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 579 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:43,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 1016 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-14 19:43:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-02-14 19:43:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 756. [2022-02-14 19:43:43,566 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) [2022-02-14 19:43:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 908 transitions. [2022-02-14 19:43:43,567 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 908 transitions. Word has length 73 [2022-02-14 19:43:43,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:43,567 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 908 transitions. [2022-02-14 19:43:43,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-02-14 19:43:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 908 transitions. [2022-02-14 19:43:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-14 19:43:43,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:43,568 INFO L514 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] [2022-02-14 19:43:43,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-14 19:43:43,568 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2048415176, now seen corresponding path program 1 times [2022-02-14 19:43:43,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:43,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206848174] [2022-02-14 19:43:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:43,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-14 19:43:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:43,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:43,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206848174] [2022-02-14 19:43:43,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206848174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:43,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:43,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:43,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593197296] [2022-02-14 19:43:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:43,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:43,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:43,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:43,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:43,735 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) [2022-02-14 19:43:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:44,704 INFO L93 Difference]: Finished difference Result 820 states and 983 transitions. [2022-02-14 19:43:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 19:43:44,704 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 [2022-02-14 19:43:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:44,706 INFO L225 Difference]: With dead ends: 820 [2022-02-14 19:43:44,706 INFO L226 Difference]: Without dead ends: 777 [2022-02-14 19:43:44,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:44,707 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 344 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:44,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1583 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:44,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-02-14 19:43:44,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 730. [2022-02-14 19:43:44,783 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) [2022-02-14 19:43:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 876 transitions. [2022-02-14 19:43:44,784 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 876 transitions. Word has length 68 [2022-02-14 19:43:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:44,784 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 876 transitions. [2022-02-14 19:43:44,784 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) [2022-02-14 19:43:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 876 transitions. [2022-02-14 19:43:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-14 19:43:44,785 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:44,785 INFO L514 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] [2022-02-14 19:43:44,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-14 19:43:44,786 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:44,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:44,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2136980157, now seen corresponding path program 1 times [2022-02-14 19:43:44,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:44,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462986236] [2022-02-14 19:43:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:44,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-14 19:43:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-14 19:43:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-14 19:43:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-02-14 19:43:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:44,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:44,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462986236] [2022-02-14 19:43:44,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462986236] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:44,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:44,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-14 19:43:44,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916039664] [2022-02-14 19:43:44,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:44,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-14 19:43:44,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:44,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-14 19:43:44,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-02-14 19:43:44,976 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) [2022-02-14 19:43:46,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:46,142 INFO L93 Difference]: Finished difference Result 790 states and 947 transitions. [2022-02-14 19:43:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-14 19:43:46,143 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 [2022-02-14 19:43:46,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:46,144 INFO L225 Difference]: With dead ends: 790 [2022-02-14 19:43:46,144 INFO L226 Difference]: Without dead ends: 732 [2022-02-14 19:43:46,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-02-14 19:43:46,145 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 488 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:46,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [500 Valid, 972 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-14 19:43:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-02-14 19:43:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 682. [2022-02-14 19:43:46,207 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) [2022-02-14 19:43:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 816 transitions. [2022-02-14 19:43:46,208 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 816 transitions. Word has length 71 [2022-02-14 19:43:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:46,208 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 816 transitions. [2022-02-14 19:43:46,208 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) [2022-02-14 19:43:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 816 transitions. [2022-02-14 19:43:46,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-14 19:43:46,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:46,209 INFO L514 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] [2022-02-14 19:43:46,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-14 19:43:46,209 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:46,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash 79294232, now seen corresponding path program 1 times [2022-02-14 19:43:46,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:46,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775142455] [2022-02-14 19:43:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:46,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-02-14 19:43:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-02-14 19:43:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:46,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:46,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775142455] [2022-02-14 19:43:46,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775142455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:46,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:46,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-14 19:43:46,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925530889] [2022-02-14 19:43:46,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:46,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-14 19:43:46,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:46,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-14 19:43:46,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-02-14 19:43:46,403 INFO L87 Difference]: Start difference. First operand 682 states and 816 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-02-14 19:43:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:47,156 INFO L93 Difference]: Finished difference Result 1034 states and 1248 transitions. [2022-02-14 19:43:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-14 19:43:47,156 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-02-14 19:43:47,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:47,158 INFO L225 Difference]: With dead ends: 1034 [2022-02-14 19:43:47,158 INFO L226 Difference]: Without dead ends: 717 [2022-02-14 19:43:47,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-02-14 19:43:47,169 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 489 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:47,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 1165 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-14 19:43:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-02-14 19:43:47,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 664. [2022-02-14 19:43:47,231 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) [2022-02-14 19:43:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 786 transitions. [2022-02-14 19:43:47,232 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 786 transitions. Word has length 82 [2022-02-14 19:43:47,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:47,232 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 786 transitions. [2022-02-14 19:43:47,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-02-14 19:43:47,232 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 786 transitions. [2022-02-14 19:43:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-14 19:43:47,234 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:47,234 INFO L514 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] [2022-02-14 19:43:47,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-14 19:43:47,234 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash -46962823, now seen corresponding path program 1 times [2022-02-14 19:43:47,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:47,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607527135] [2022-02-14 19:43:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:47,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-14 19:43:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-14 19:43:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:47,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:47,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607527135] [2022-02-14 19:43:47,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607527135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:47,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:47,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-14 19:43:47,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84735185] [2022-02-14 19:43:47,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:47,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 19:43:47,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:47,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 19:43:47,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-02-14 19:43:47,437 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) [2022-02-14 19:43:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:48,510 INFO L93 Difference]: Finished difference Result 1069 states and 1308 transitions. [2022-02-14 19:43:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-14 19:43:48,510 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 [2022-02-14 19:43:48,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:48,512 INFO L225 Difference]: With dead ends: 1069 [2022-02-14 19:43:48,512 INFO L226 Difference]: Without dead ends: 815 [2022-02-14 19:43:48,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-02-14 19:43:48,513 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 335 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:48,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1507 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-02-14 19:43:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 628. [2022-02-14 19:43:48,579 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) [2022-02-14 19:43:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 740 transitions. [2022-02-14 19:43:48,580 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 740 transitions. Word has length 83 [2022-02-14 19:43:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:48,580 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 740 transitions. [2022-02-14 19:43:48,580 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) [2022-02-14 19:43:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 740 transitions. [2022-02-14 19:43:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-14 19:43:48,581 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:48,581 INFO L514 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] [2022-02-14 19:43:48,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-14 19:43:48,582 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1453609377, now seen corresponding path program 1 times [2022-02-14 19:43:48,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:48,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752823606] [2022-02-14 19:43:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-02-14 19:43:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:48,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:48,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752823606] [2022-02-14 19:43:48,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752823606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:48,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:48,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-14 19:43:48,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901686787] [2022-02-14 19:43:48,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:48,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-14 19:43:48,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:48,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-14 19:43:48,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:48,786 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) [2022-02-14 19:43:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:49,840 INFO L93 Difference]: Finished difference Result 738 states and 867 transitions. [2022-02-14 19:43:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-14 19:43:49,841 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 [2022-02-14 19:43:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:49,842 INFO L225 Difference]: With dead ends: 738 [2022-02-14 19:43:49,842 INFO L226 Difference]: Without dead ends: 717 [2022-02-14 19:43:49,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-02-14 19:43:49,843 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 281 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:49,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 1693 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-14 19:43:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-02-14 19:43:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 636. [2022-02-14 19:43:49,901 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) [2022-02-14 19:43:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 750 transitions. [2022-02-14 19:43:49,902 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 750 transitions. Word has length 88 [2022-02-14 19:43:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 750 transitions. [2022-02-14 19:43:49,903 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) [2022-02-14 19:43:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 750 transitions. [2022-02-14 19:43:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-14 19:43:49,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:49,904 INFO L514 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] [2022-02-14 19:43:49,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-14 19:43:49,904 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:49,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:49,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1714590573, now seen corresponding path program 1 times [2022-02-14 19:43:49,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:49,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007868939] [2022-02-14 19:43:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-14 19:43:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-14 19:43:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-14 19:43:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-14 19:43:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:50,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:50,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007868939] [2022-02-14 19:43:50,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007868939] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:50,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:50,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-14 19:43:50,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185117469] [2022-02-14 19:43:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:50,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-14 19:43:50,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:50,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-14 19:43:50,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-02-14 19:43:50,108 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) [2022-02-14 19:43:51,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:51,028 INFO L93 Difference]: Finished difference Result 738 states and 866 transitions. [2022-02-14 19:43:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-14 19:43:51,029 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 [2022-02-14 19:43:51,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:51,030 INFO L225 Difference]: With dead ends: 738 [2022-02-14 19:43:51,030 INFO L226 Difference]: Without dead ends: 717 [2022-02-14 19:43:51,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-02-14 19:43:51,031 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 305 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:51,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1946 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-14 19:43:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-02-14 19:43:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 628. [2022-02-14 19:43:51,090 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) [2022-02-14 19:43:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 739 transitions. [2022-02-14 19:43:51,091 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 739 transitions. Word has length 89 [2022-02-14 19:43:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:51,091 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 739 transitions. [2022-02-14 19:43:51,091 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) [2022-02-14 19:43:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 739 transitions. [2022-02-14 19:43:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-14 19:43:51,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:51,092 INFO L514 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] [2022-02-14 19:43:51,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-14 19:43:51,092 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash -559319967, now seen corresponding path program 1 times [2022-02-14 19:43:51,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:51,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707952602] [2022-02-14 19:43:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:51,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 19:43:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-14 19:43:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-14 19:43:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-02-14 19:43:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-14 19:43:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-14 19:43:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-14 19:43:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 19:43:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 19:43:51,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 19:43:51,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707952602] [2022-02-14 19:43:51,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707952602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 19:43:51,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 19:43:51,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-14 19:43:51,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982378820] [2022-02-14 19:43:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 19:43:51,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-14 19:43:51,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 19:43:51,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-14 19:43:51,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-02-14 19:43:51,266 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) [2022-02-14 19:43:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 19:43:52,193 INFO L93 Difference]: Finished difference Result 1175 states and 1370 transitions. [2022-02-14 19:43:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-14 19:43:52,193 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 [2022-02-14 19:43:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 19:43:52,195 INFO L225 Difference]: With dead ends: 1175 [2022-02-14 19:43:52,195 INFO L226 Difference]: Without dead ends: 775 [2022-02-14 19:43:52,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-02-14 19:43:52,196 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 827 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-14 19:43:52,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 592 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-14 19:43:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-02-14 19:43:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 749. [2022-02-14 19:43:52,276 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) [2022-02-14 19:43:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 870 transitions. [2022-02-14 19:43:52,277 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 870 transitions. Word has length 84 [2022-02-14 19:43:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 19:43:52,277 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 870 transitions. [2022-02-14 19:43:52,277 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) [2022-02-14 19:43:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 870 transitions. [2022-02-14 19:43:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-14 19:43:52,278 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 19:43:52,278 INFO L514 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] [2022-02-14 19:43:52,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-14 19:43:52,278 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 19:43:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 19:43:52,278 INFO L85 PathProgramCache]: Analyzing trace with hash -401569601, now seen corresponding path program 1 times [2022-02-14 19:43:52,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 19:43:52,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045702009] [2022-02-14 19:43:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 19:43:52,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 19:43:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-14 19:43:52,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-14 19:43:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-14 19:43:52,363 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-14 19:43:52,364 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-14 19:43:52,364 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-14 19:43:52,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-14 19:43:52,369 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 19:43:52,372 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-14 19:43:52,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 07:43:52 BoogieIcfgContainer [2022-02-14 19:43:52,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-14 19:43:52,470 INFO L158 Benchmark]: Toolchain (without parser) took 72017.29ms. Allocated memory was 165.7MB in the beginning and 345.0MB in the end (delta: 179.3MB). Free memory was 108.7MB in the beginning and 236.6MB in the end (delta: -127.9MB). Peak memory consumption was 52.3MB. Max. memory is 8.0GB. [2022-02-14 19:43:52,470 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-14 19:43:52,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.27ms. Allocated memory was 165.7MB in the beginning and 227.5MB in the end (delta: 61.9MB). Free memory was 108.5MB in the beginning and 186.6MB in the end (delta: -78.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-02-14 19:43:52,470 INFO L158 Benchmark]: Boogie Preprocessor took 61.71ms. Allocated memory is still 227.5MB. Free memory was 186.6MB in the beginning and 182.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-02-14 19:43:52,470 INFO L158 Benchmark]: RCFGBuilder took 909.64ms. Allocated memory is still 227.5MB. Free memory was 182.4MB in the beginning and 129.4MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-02-14 19:43:52,475 INFO L158 Benchmark]: TraceAbstraction took 70644.04ms. Allocated memory was 227.5MB in the beginning and 345.0MB in the end (delta: 117.4MB). Free memory was 128.9MB in the beginning and 236.6MB in the end (delta: -107.7MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-02-14 19:43:52,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.27ms. Allocated memory was 165.7MB in the beginning and 227.5MB in the end (delta: 61.9MB). Free memory was 108.5MB in the beginning and 186.6MB in the end (delta: -78.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.71ms. Allocated memory is still 227.5MB. Free memory was 186.6MB in the beginning and 182.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 909.64ms. Allocated memory is still 227.5MB. Free memory was 182.4MB in the beginning and 129.4MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * TraceAbstraction took 70644.04ms. Allocated memory was 227.5MB in the beginning and 345.0MB in the end (delta: 117.4MB). Free memory was 128.9MB in the beginning and 236.6MB in the end (delta: -107.7MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1627]: a call to reach_error is reachable a call to reach_error is reachable We found a 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)=270, \old(customIrp)=262, \old(DC)=274, \old(DiskController)=286, \old(Executive)=276, \old(FlConfigCallBack)=263, \old(FloppyDiskPeripheral)=282, \old(FloppyThread)=260, \old(IPC)=267, \old(KernelMode)=264, \old(lowerDriverReturn)=275, \old(MaximumInterfaceType)=284, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=272, \old(MPR1)=269, \old(MPR3)=287, \old(myStatus)=283, \old(NP)=277, \old(PagingMutex)=273, \old(PagingReferenceCount)=279, \old(pended)=278, \old(s)=265, \old(setEventCalled)=261, \old(SKIP1)=266, \old(SKIP2)=271, \old(Suspended)=280, \old(UNLOADED)=285, 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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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=1, 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)=0, \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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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=0, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, 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=0, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, 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=0, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, 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=0, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, 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=0, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=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] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=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] [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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=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, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, 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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, 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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, 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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, 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)=0, \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=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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)=0, \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=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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=0, 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=1, 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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.5s, OverallIterations: 55, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 58.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36644 SdHoareTripleChecker+Valid, 47.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36167 mSDsluCounter, 63024 SdHoareTripleChecker+Invalid, 39.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39639 mSDsCounter, 11065 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83558 IncrementalHoareTripleChecker+Invalid, 94623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11065 mSolverCounterUnsat, 23385 mSDtfsCounter, 83558 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1216 GetRequests, 491 SyntacticMatches, 7 SemanticMatches, 718 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=19, InterpolantAutomatonStates: 639, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 54 MinimizatonAttempts, 3264 StatesRemovedByMinimization, 54 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 3071 NumberOfCodeBlocks, 3071 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 2932 ConstructedInterpolants, 0 QuantifiedInterpolants, 14816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 54 InterpolantComputations, 54 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 proved your program to be incorrect! [2022-02-14 19:43:52,503 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...