/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:14:58,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:14:58,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:14:58,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:14:58,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:14:58,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:14:58,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:14:58,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:14:58,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:14:58,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:14:58,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:14:58,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:14:58,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:14:58,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:14:58,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:14:58,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:14:58,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:14:58,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:14:58,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:14:58,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:14:58,732 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:14:58,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:14:58,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:14:58,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:14:58,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:14:58,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:14:58,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:14:58,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:14:58,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:14:58,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:14:58,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:14:58,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:14:58,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:14:58,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:14:58,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:14:58,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:14:58,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:14:58,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:14:58,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:14:58,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:14:58,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:14:58,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:14:58,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:14:58,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:14:58,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:14:58,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:14:58,762 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:14:58,762 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:14:58,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:14:58,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:14:58,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:14:58,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:14:58,983 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:14:58,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-03-17 23:14:59,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561df6a38/f64e06b1dd484cdf9b6ba8b135543b49/FLAG65b8d84c4 [2022-03-17 23:14:59,454 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:14:59,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-03-17 23:14:59,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561df6a38/f64e06b1dd484cdf9b6ba8b135543b49/FLAG65b8d84c4 [2022-03-17 23:14:59,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/561df6a38/f64e06b1dd484cdf9b6ba8b135543b49 [2022-03-17 23:14:59,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:14:59,481 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:14:59,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:14:59,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:14:59,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:14:59,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562458a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59, skipping insertion in model container [2022-03-17 23:14:59,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:14:59,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:14:59,752 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] [2022-03-17 23:14:59,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:14:59,759 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:14:59,834 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] [2022-03-17 23:14:59,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:14:59,845 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:14:59,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59 WrapperNode [2022-03-17 23:14:59,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:14:59,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:14:59,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:14:59,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:14:59,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:14:59,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:14:59,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:14:59,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:14:59,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (1/1) ... [2022-03-17 23:14:59,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:14:59,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:14:59,996 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) [2022-03-17 23:15:00,054 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 [2022-03-17 23:15:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:15:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:15:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:15:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-17 23:15:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2022-03-17 23:15:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-03-17 23:15:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2022-03-17 23:15:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-03-17 23:15:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-03-17 23:15:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-03-17 23:15:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-17 23:15:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-03-17 23:15:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2022-03-17 23:15:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-17 23:15:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-17 23:15:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-17 23:15:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-03-17 23:15:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:15:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:15:00,265 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:15:00,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:15:00,298 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,321 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,321 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,328 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,353 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,353 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,357 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,506 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-03-17 23:15:00,506 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-03-17 23:15:00,508 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,577 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-03-17 23:15:00,577 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-03-17 23:15:00,584 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,593 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-17 23:15:00,594 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-17 23:15:00,658 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,668 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,668 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,668 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,674 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,674 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,675 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,683 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,683 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,726 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,743 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-03-17 23:15:00,743 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-03-17 23:15:00,746 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,819 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-03-17 23:15:00,819 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-03-17 23:15:00,862 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,868 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,879 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,880 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,880 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:15:00,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 23:15:00,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 23:15:00,899 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:15:00,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:15:00,913 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:15:00,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:15:00 BoogieIcfgContainer [2022-03-17 23:15:00,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:15:00,915 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:15:00,915 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:15:00,918 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:15:00,921 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:15:00" (1/1) ... [2022-03-17 23:15:00,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:15:00 BasicIcfg [2022-03-17 23:15:00,967 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:15:00,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:15:00,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:15:00,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:15:00,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:14:59" (1/4) ... [2022-03-17 23:15:00,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f528b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:15:00, skipping insertion in model container [2022-03-17 23:15:00,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:14:59" (2/4) ... [2022-03-17 23:15:00,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f528b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:15:00, skipping insertion in model container [2022-03-17 23:15:00,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:15:00" (3/4) ... [2022-03-17 23:15:00,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f528b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:15:00, skipping insertion in model container [2022-03-17 23:15:00,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:15:00" (4/4) ... [2022-03-17 23:15:00,983 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.cqvasr [2022-03-17 23:15:00,988 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:15:00,993 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:15:01,027 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:15:01,033 INFO L340 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=FINITE_AUTOMATA, 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 [2022-03-17 23:15:01,034 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:15:01,070 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) [2022-03-17 23:15:01,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-17 23:15:01,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:01,074 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:15:01,075 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:01,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash -408635812, now seen corresponding path program 1 times [2022-03-17 23:15:01,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:01,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785119976] [2022-03-17 23:15:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:01,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:01,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:01,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:01,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785119976] [2022-03-17 23:15:01,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785119976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:01,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:01,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:15:01,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658640828] [2022-03-17 23:15:01,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:01,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:15:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:01,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:15:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:15:01,522 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) [2022-03-17 23:15:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:02,573 INFO L93 Difference]: Finished difference Result 667 states and 981 transitions. [2022-03-17 23:15:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:15:02,575 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 [2022-03-17 23:15:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:02,585 INFO L225 Difference]: With dead ends: 667 [2022-03-17 23:15:02,585 INFO L226 Difference]: Without dead ends: 424 [2022-03-17 23:15:02,590 INFO L911 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 [2022-03-17 23:15:02,592 INFO L912 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 [2022-03-17 23:15:02,593 INFO L913 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] [2022-03-17 23:15:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-17 23:15:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2022-03-17 23:15:02,679 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) [2022-03-17 23:15:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2022-03-17 23:15:02,681 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2022-03-17 23:15:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:02,682 INFO L478 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2022-03-17 23:15:02,682 INFO L479 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) [2022-03-17 23:15:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2022-03-17 23:15:02,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-17 23:15:02,683 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:02,683 INFO L500 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] [2022-03-17 23:15:02,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:15:02,684 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:02,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1414681826, now seen corresponding path program 1 times [2022-03-17 23:15:02,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:02,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930597425] [2022-03-17 23:15:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:02,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:02,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930597425] [2022-03-17 23:15:02,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930597425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:02,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:02,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:15:02,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629248139] [2022-03-17 23:15:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:02,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:15:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:02,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:15:02,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:15:02,827 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) [2022-03-17 23:15:03,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:03,867 INFO L93 Difference]: Finished difference Result 753 states and 1031 transitions. [2022-03-17 23:15:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:15:03,867 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 [2022-03-17 23:15:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:03,871 INFO L225 Difference]: With dead ends: 753 [2022-03-17 23:15:03,871 INFO L226 Difference]: Without dead ends: 588 [2022-03-17 23:15:03,871 INFO L911 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 [2022-03-17 23:15:03,872 INFO L912 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, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:03,873 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 926 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-17 23:15:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 527. [2022-03-17 23:15:03,903 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) [2022-03-17 23:15:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 719 transitions. [2022-03-17 23:15:03,906 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 719 transitions. Word has length 25 [2022-03-17 23:15:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:03,906 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 719 transitions. [2022-03-17 23:15:03,906 INFO L479 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) [2022-03-17 23:15:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 719 transitions. [2022-03-17 23:15:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-17 23:15:03,907 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:03,907 INFO L500 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] [2022-03-17 23:15:03,907 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:15:03,907 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:03,908 INFO L85 PathProgramCache]: Analyzing trace with hash -767012771, now seen corresponding path program 1 times [2022-03-17 23:15:03,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:03,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21263385] [2022-03-17 23:15:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:03,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:04,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:04,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21263385] [2022-03-17 23:15:04,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21263385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:04,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:04,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:15:04,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33082956] [2022-03-17 23:15:04,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:04,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:15:04,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:04,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:15:04,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:15:04,040 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) [2022-03-17 23:15:04,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:04,651 INFO L93 Difference]: Finished difference Result 699 states and 941 transitions. [2022-03-17 23:15:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:15:04,652 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 [2022-03-17 23:15:04,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:04,655 INFO L225 Difference]: With dead ends: 699 [2022-03-17 23:15:04,655 INFO L226 Difference]: Without dead ends: 678 [2022-03-17 23:15:04,655 INFO L911 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 [2022-03-17 23:15:04,656 INFO L912 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 [2022-03-17 23:15:04,656 INFO L913 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] [2022-03-17 23:15:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-03-17 23:15:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2022-03-17 23:15:04,682 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) [2022-03-17 23:15:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 802 transitions. [2022-03-17 23:15:04,684 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 802 transitions. Word has length 31 [2022-03-17 23:15:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:04,685 INFO L478 AbstractCegarLoop]: Abstraction has 591 states and 802 transitions. [2022-03-17 23:15:04,685 INFO L479 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) [2022-03-17 23:15:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 802 transitions. [2022-03-17 23:15:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-17 23:15:04,686 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:04,686 INFO L500 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] [2022-03-17 23:15:04,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:15:04,686 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1058216949, now seen corresponding path program 1 times [2022-03-17 23:15:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:04,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039879198] [2022-03-17 23:15:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:04,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:04,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039879198] [2022-03-17 23:15:04,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039879198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:04,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:04,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:15:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273892909] [2022-03-17 23:15:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:04,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:15:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:15:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:15:04,846 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) [2022-03-17 23:15:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:05,531 INFO L93 Difference]: Finished difference Result 1133 states and 1525 transitions. [2022-03-17 23:15:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:15:05,532 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 [2022-03-17 23:15:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:05,535 INFO L225 Difference]: With dead ends: 1133 [2022-03-17 23:15:05,535 INFO L226 Difference]: Without dead ends: 827 [2022-03-17 23:15:05,536 INFO L911 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 [2022-03-17 23:15:05,537 INFO L912 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 [2022-03-17 23:15:05,537 INFO L913 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] [2022-03-17 23:15:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-03-17 23:15:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 779. [2022-03-17 23:15:05,568 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) [2022-03-17 23:15:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2022-03-17 23:15:05,571 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 33 [2022-03-17 23:15:05,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:05,571 INFO L478 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2022-03-17 23:15:05,572 INFO L479 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) [2022-03-17 23:15:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2022-03-17 23:15:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-17 23:15:05,573 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:05,573 INFO L500 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] [2022-03-17 23:15:05,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:15:05,573 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:05,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:05,574 INFO L85 PathProgramCache]: Analyzing trace with hash -998576627, now seen corresponding path program 1 times [2022-03-17 23:15:05,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:05,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717681661] [2022-03-17 23:15:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 23:15:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:05,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:05,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:05,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717681661] [2022-03-17 23:15:05,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717681661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:05,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:05,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:05,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247506505] [2022-03-17 23:15:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:05,705 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:05,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:05,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:05,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:05,706 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) [2022-03-17 23:15:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:06,565 INFO L93 Difference]: Finished difference Result 881 states and 1187 transitions. [2022-03-17 23:15:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:06,565 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 [2022-03-17 23:15:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:06,569 INFO L225 Difference]: With dead ends: 881 [2022-03-17 23:15:06,569 INFO L226 Difference]: Without dead ends: 876 [2022-03-17 23:15:06,570 INFO L911 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 [2022-03-17 23:15:06,570 INFO L912 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:06,571 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 1007 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-03-17 23:15:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 822. [2022-03-17 23:15:06,603 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) [2022-03-17 23:15:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1111 transitions. [2022-03-17 23:15:06,606 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1111 transitions. Word has length 38 [2022-03-17 23:15:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:06,606 INFO L478 AbstractCegarLoop]: Abstraction has 822 states and 1111 transitions. [2022-03-17 23:15:06,606 INFO L479 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) [2022-03-17 23:15:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1111 transitions. [2022-03-17 23:15:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-17 23:15:06,608 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:06,608 INFO L500 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] [2022-03-17 23:15:06,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:15:06,608 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1439135067, now seen corresponding path program 1 times [2022-03-17 23:15:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:06,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080219810] [2022-03-17 23:15:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:06,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:06,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080219810] [2022-03-17 23:15:06,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080219810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:06,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:06,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:15:06,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303476752] [2022-03-17 23:15:06,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:06,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:15:06,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:15:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:15:06,722 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) [2022-03-17 23:15:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:07,399 INFO L93 Difference]: Finished difference Result 856 states and 1153 transitions. [2022-03-17 23:15:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:15:07,399 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 [2022-03-17 23:15:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:07,403 INFO L225 Difference]: With dead ends: 856 [2022-03-17 23:15:07,403 INFO L226 Difference]: Without dead ends: 853 [2022-03-17 23:15:07,403 INFO L911 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 [2022-03-17 23:15:07,404 INFO L912 BasicCegarLoop]: 470 mSDtfsCounter, 488 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-17 23:15:07,404 INFO L913 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] [2022-03-17 23:15:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-17 23:15:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 833. [2022-03-17 23:15:07,435 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) [2022-03-17 23:15:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1125 transitions. [2022-03-17 23:15:07,438 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1125 transitions. Word has length 38 [2022-03-17 23:15:07,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:07,439 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1125 transitions. [2022-03-17 23:15:07,439 INFO L479 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) [2022-03-17 23:15:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1125 transitions. [2022-03-17 23:15:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-17 23:15:07,440 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:07,440 INFO L500 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] [2022-03-17 23:15:07,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:15:07,440 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:07,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1277151967, now seen corresponding path program 1 times [2022-03-17 23:15:07,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:07,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242887901] [2022-03-17 23:15:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-17 23:15:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:07,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:07,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242887901] [2022-03-17 23:15:07,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242887901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:07,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:07,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:07,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524033867] [2022-03-17 23:15:07,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:07,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:07,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:07,636 INFO L87 Difference]: Start difference. First operand 833 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:08,937 INFO L93 Difference]: Finished difference Result 896 states and 1203 transitions. [2022-03-17 23:15:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:08,952 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-03-17 23:15:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:08,958 INFO L225 Difference]: With dead ends: 896 [2022-03-17 23:15:08,958 INFO L226 Difference]: Without dead ends: 887 [2022-03-17 23:15:08,959 INFO L911 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 [2022-03-17 23:15:08,964 INFO L912 BasicCegarLoop]: 461 mSDtfsCounter, 1872 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 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 [2022-03-17 23:15:08,965 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1887 Valid, 879 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-17 23:15:09,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-03-17 23:15:09,023 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) [2022-03-17 23:15:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1123 transitions. [2022-03-17 23:15:09,032 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1123 transitions. Word has length 40 [2022-03-17 23:15:09,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:09,032 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1123 transitions. [2022-03-17 23:15:09,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1123 transitions. [2022-03-17 23:15:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-17 23:15:09,043 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:09,043 INFO L500 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] [2022-03-17 23:15:09,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:15:09,043 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:09,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:09,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1831552671, now seen corresponding path program 1 times [2022-03-17 23:15:09,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:09,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440564603] [2022-03-17 23:15:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 23:15:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:09,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440564603] [2022-03-17 23:15:09,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440564603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:09,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:09,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993905306] [2022-03-17 23:15:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:09,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:09,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:09,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:09,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:09,213 INFO L87 Difference]: Start difference. First operand 833 states and 1123 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:10,698 INFO L93 Difference]: Finished difference Result 896 states and 1201 transitions. [2022-03-17 23:15:10,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:10,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-03-17 23:15:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:10,702 INFO L225 Difference]: With dead ends: 896 [2022-03-17 23:15:10,702 INFO L226 Difference]: Without dead ends: 887 [2022-03-17 23:15:10,702 INFO L911 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 [2022-03-17 23:15:10,703 INFO L912 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 [2022-03-17 23:15:10,703 INFO L913 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] [2022-03-17 23:15:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-17 23:15:10,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-03-17 23:15:10,740 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) [2022-03-17 23:15:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1121 transitions. [2022-03-17 23:15:10,743 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1121 transitions. Word has length 40 [2022-03-17 23:15:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:10,743 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1121 transitions. [2022-03-17 23:15:10,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1121 transitions. [2022-03-17 23:15:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 23:15:10,744 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:10,744 INFO L500 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] [2022-03-17 23:15:10,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:15:10,745 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash 802238392, now seen corresponding path program 1 times [2022-03-17 23:15:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:10,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089215506] [2022-03-17 23:15:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-17 23:15:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:10,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:10,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089215506] [2022-03-17 23:15:10,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089215506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:10,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:10,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230741105] [2022-03-17 23:15:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:10,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:10,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:10,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:10,882 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) [2022-03-17 23:15:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:11,921 INFO L93 Difference]: Finished difference Result 896 states and 1199 transitions. [2022-03-17 23:15:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 23:15:11,922 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 [2022-03-17 23:15:11,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:11,925 INFO L225 Difference]: With dead ends: 896 [2022-03-17 23:15:11,925 INFO L226 Difference]: Without dead ends: 881 [2022-03-17 23:15:11,926 INFO L911 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 [2022-03-17 23:15:11,926 INFO L912 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 [2022-03-17 23:15:11,926 INFO L913 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] [2022-03-17 23:15:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-03-17 23:15:11,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 831. [2022-03-17 23:15:11,961 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) [2022-03-17 23:15:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1117 transitions. [2022-03-17 23:15:11,964 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1117 transitions. Word has length 42 [2022-03-17 23:15:11,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:11,964 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1117 transitions. [2022-03-17 23:15:11,964 INFO L479 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) [2022-03-17 23:15:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1117 transitions. [2022-03-17 23:15:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-17 23:15:11,965 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:11,965 INFO L500 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] [2022-03-17 23:15:11,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:15:11,965 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:11,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1640201888, now seen corresponding path program 1 times [2022-03-17 23:15:11,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:11,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443404566] [2022-03-17 23:15:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:11,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 23:15:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:12,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:12,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443404566] [2022-03-17 23:15:12,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443404566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:12,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:12,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:12,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782380058] [2022-03-17 23:15:12,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:12,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:12,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:12,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:12,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:12,132 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) [2022-03-17 23:15:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:13,159 INFO L93 Difference]: Finished difference Result 894 states and 1195 transitions. [2022-03-17 23:15:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 23:15:13,159 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 [2022-03-17 23:15:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:13,163 INFO L225 Difference]: With dead ends: 894 [2022-03-17 23:15:13,163 INFO L226 Difference]: Without dead ends: 874 [2022-03-17 23:15:13,163 INFO L911 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 [2022-03-17 23:15:13,164 INFO L912 BasicCegarLoop]: 478 mSDtfsCounter, 538 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-03-17 23:15:13,164 INFO L913 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] [2022-03-17 23:15:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-03-17 23:15:13,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 824. [2022-03-17 23:15:13,209 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) [2022-03-17 23:15:13,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1108 transitions. [2022-03-17 23:15:13,211 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1108 transitions. Word has length 41 [2022-03-17 23:15:13,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:13,212 INFO L478 AbstractCegarLoop]: Abstraction has 824 states and 1108 transitions. [2022-03-17 23:15:13,212 INFO L479 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) [2022-03-17 23:15:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1108 transitions. [2022-03-17 23:15:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 23:15:13,213 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:13,213 INFO L500 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] [2022-03-17 23:15:13,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:15:13,213 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2062631413, now seen corresponding path program 1 times [2022-03-17 23:15:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:13,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476569865] [2022-03-17 23:15:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:13,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:13,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:13,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476569865] [2022-03-17 23:15:13,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476569865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:13,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:13,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:13,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743793048] [2022-03-17 23:15:13,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:13,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:13,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:13,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:13,345 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) [2022-03-17 23:15:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:14,653 INFO L93 Difference]: Finished difference Result 871 states and 1163 transitions. [2022-03-17 23:15:14,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:14,653 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 [2022-03-17 23:15:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:14,657 INFO L225 Difference]: With dead ends: 871 [2022-03-17 23:15:14,657 INFO L226 Difference]: Without dead ends: 849 [2022-03-17 23:15:14,658 INFO L911 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 [2022-03-17 23:15:14,658 INFO L912 BasicCegarLoop]: 459 mSDtfsCounter, 235 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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 [2022-03-17 23:15:14,658 INFO L913 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] [2022-03-17 23:15:14,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-03-17 23:15:14,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 826. [2022-03-17 23:15:14,693 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) [2022-03-17 23:15:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1110 transitions. [2022-03-17 23:15:14,695 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1110 transitions. Word has length 42 [2022-03-17 23:15:14,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:14,695 INFO L478 AbstractCegarLoop]: Abstraction has 826 states and 1110 transitions. [2022-03-17 23:15:14,696 INFO L479 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) [2022-03-17 23:15:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1110 transitions. [2022-03-17 23:15:14,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-17 23:15:14,696 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:14,696 INFO L500 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] [2022-03-17 23:15:14,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:15:14,697 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:14,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1257309958, now seen corresponding path program 1 times [2022-03-17 23:15:14,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:14,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034781160] [2022-03-17 23:15:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:14,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-17 23:15:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:14,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034781160] [2022-03-17 23:15:14,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034781160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:14,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:14,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 23:15:14,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614118105] [2022-03-17 23:15:14,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:14,835 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 23:15:14,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:14,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 23:15:14,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-17 23:15:14,836 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) [2022-03-17 23:15:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:15,854 INFO L93 Difference]: Finished difference Result 922 states and 1228 transitions. [2022-03-17 23:15:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:15,855 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 [2022-03-17 23:15:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:15,858 INFO L225 Difference]: With dead ends: 922 [2022-03-17 23:15:15,858 INFO L226 Difference]: Without dead ends: 854 [2022-03-17 23:15:15,858 INFO L911 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 [2022-03-17 23:15:15,859 INFO L912 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 [2022-03-17 23:15:15,859 INFO L913 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] [2022-03-17 23:15:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-03-17 23:15:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 830. [2022-03-17 23:15:15,894 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) [2022-03-17 23:15:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-03-17 23:15:15,896 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 44 [2022-03-17 23:15:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:15,896 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-03-17 23:15:15,896 INFO L479 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) [2022-03-17 23:15:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-03-17 23:15:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-17 23:15:15,897 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:15,897 INFO L500 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] [2022-03-17 23:15:15,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:15:15,897 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:15,898 INFO L85 PathProgramCache]: Analyzing trace with hash 319855895, now seen corresponding path program 1 times [2022-03-17 23:15:15,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:15,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332392641] [2022-03-17 23:15:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:16,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:16,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332392641] [2022-03-17 23:15:16,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332392641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:16,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:16,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:16,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32225462] [2022-03-17 23:15:16,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:16,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:16,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:16,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:16,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:16,055 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) [2022-03-17 23:15:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:17,368 INFO L93 Difference]: Finished difference Result 874 states and 1166 transitions. [2022-03-17 23:15:17,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 23:15:17,369 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 [2022-03-17 23:15:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:17,372 INFO L225 Difference]: With dead ends: 874 [2022-03-17 23:15:17,372 INFO L226 Difference]: Without dead ends: 852 [2022-03-17 23:15:17,373 INFO L911 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 [2022-03-17 23:15:17,373 INFO L912 BasicCegarLoop]: 464 mSDtfsCounter, 231 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:17,374 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1043 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 23:15:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-03-17 23:15:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 830. [2022-03-17 23:15:17,410 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) [2022-03-17 23:15:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-03-17 23:15:17,412 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 43 [2022-03-17 23:15:17,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:17,413 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-03-17 23:15:17,413 INFO L479 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) [2022-03-17 23:15:17,413 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-03-17 23:15:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-17 23:15:17,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:17,414 INFO L500 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] [2022-03-17 23:15:17,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:15:17,414 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash -368503493, now seen corresponding path program 1 times [2022-03-17 23:15:17,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:17,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792472164] [2022-03-17 23:15:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 23:15:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:17,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:17,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792472164] [2022-03-17 23:15:17,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792472164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:17,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:17,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:17,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730498278] [2022-03-17 23:15:17,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:17,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:17,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:17,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:17,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:17,560 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) [2022-03-17 23:15:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:18,418 INFO L93 Difference]: Finished difference Result 875 states and 1168 transitions. [2022-03-17 23:15:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:18,420 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 [2022-03-17 23:15:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:18,422 INFO L225 Difference]: With dead ends: 875 [2022-03-17 23:15:18,422 INFO L226 Difference]: Without dead ends: 857 [2022-03-17 23:15:18,423 INFO L911 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 [2022-03-17 23:15:18,423 INFO L912 BasicCegarLoop]: 460 mSDtfsCounter, 700 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-03-17 23:15:18,423 INFO L913 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] [2022-03-17 23:15:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-03-17 23:15:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 828. [2022-03-17 23:15:18,463 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) [2022-03-17 23:15:18,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1111 transitions. [2022-03-17 23:15:18,466 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1111 transitions. Word has length 45 [2022-03-17 23:15:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:18,467 INFO L478 AbstractCegarLoop]: Abstraction has 828 states and 1111 transitions. [2022-03-17 23:15:18,467 INFO L479 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) [2022-03-17 23:15:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1111 transitions. [2022-03-17 23:15:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-17 23:15:18,468 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:18,468 INFO L500 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] [2022-03-17 23:15:18,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:15:18,468 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1762098405, now seen corresponding path program 1 times [2022-03-17 23:15:18,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:18,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041134497] [2022-03-17 23:15:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:18,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 23:15:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:18,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041134497] [2022-03-17 23:15:18,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041134497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:18,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:18,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:18,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452832046] [2022-03-17 23:15:18,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:18,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:18,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:18,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:18,631 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) [2022-03-17 23:15:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:19,717 INFO L93 Difference]: Finished difference Result 884 states and 1181 transitions. [2022-03-17 23:15:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:15:19,717 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 [2022-03-17 23:15:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:19,720 INFO L225 Difference]: With dead ends: 884 [2022-03-17 23:15:19,720 INFO L226 Difference]: Without dead ends: 836 [2022-03-17 23:15:19,720 INFO L911 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 [2022-03-17 23:15:19,722 INFO L912 BasicCegarLoop]: 488 mSDtfsCounter, 671 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:19,722 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 904 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 23:15:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-03-17 23:15:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 806. [2022-03-17 23:15:19,778 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) [2022-03-17 23:15:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1079 transitions. [2022-03-17 23:15:19,788 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1079 transitions. Word has length 46 [2022-03-17 23:15:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:19,788 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1079 transitions. [2022-03-17 23:15:19,788 INFO L479 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) [2022-03-17 23:15:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1079 transitions. [2022-03-17 23:15:19,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-17 23:15:19,790 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:19,791 INFO L500 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] [2022-03-17 23:15:19,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:15:19,791 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:19,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:19,791 INFO L85 PathProgramCache]: Analyzing trace with hash -569320266, now seen corresponding path program 1 times [2022-03-17 23:15:19,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:19,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284933958] [2022-03-17 23:15:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:19,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:19,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:19,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-17 23:15:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:19,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:19,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284933958] [2022-03-17 23:15:19,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284933958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:19,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:19,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:15:19,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566027087] [2022-03-17 23:15:19,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:19,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:15:19,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:19,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:15:19,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:15:19,917 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) [2022-03-17 23:15:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:21,313 INFO L93 Difference]: Finished difference Result 1165 states and 1573 transitions. [2022-03-17 23:15:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:21,314 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 [2022-03-17 23:15:21,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:21,317 INFO L225 Difference]: With dead ends: 1165 [2022-03-17 23:15:21,317 INFO L226 Difference]: Without dead ends: 1162 [2022-03-17 23:15:21,317 INFO L911 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 [2022-03-17 23:15:21,322 INFO L912 BasicCegarLoop]: 538 mSDtfsCounter, 435 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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 [2022-03-17 23:15:21,323 INFO L913 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] [2022-03-17 23:15:21,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-03-17 23:15:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 919. [2022-03-17 23:15:21,390 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) [2022-03-17 23:15:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1233 transitions. [2022-03-17 23:15:21,393 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1233 transitions. Word has length 47 [2022-03-17 23:15:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:21,393 INFO L478 AbstractCegarLoop]: Abstraction has 919 states and 1233 transitions. [2022-03-17 23:15:21,393 INFO L479 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) [2022-03-17 23:15:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1233 transitions. [2022-03-17 23:15:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-17 23:15:21,394 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:21,394 INFO L500 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] [2022-03-17 23:15:21,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:15:21,394 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:21,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1287446407, now seen corresponding path program 1 times [2022-03-17 23:15:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:21,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981393700] [2022-03-17 23:15:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 23:15:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:21,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981393700] [2022-03-17 23:15:21,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981393700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:21,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:21,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:21,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209665409] [2022-03-17 23:15:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:21,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:21,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:21,540 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) [2022-03-17 23:15:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:22,681 INFO L93 Difference]: Finished difference Result 964 states and 1286 transitions. [2022-03-17 23:15:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:15:22,681 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 [2022-03-17 23:15:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:22,684 INFO L225 Difference]: With dead ends: 964 [2022-03-17 23:15:22,684 INFO L226 Difference]: Without dead ends: 946 [2022-03-17 23:15:22,685 INFO L911 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 [2022-03-17 23:15:22,685 INFO L912 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, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:22,685 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1250 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 23:15:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-03-17 23:15:22,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 917. [2022-03-17 23:15:22,730 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) [2022-03-17 23:15:22,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1229 transitions. [2022-03-17 23:15:22,731 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1229 transitions. Word has length 47 [2022-03-17 23:15:22,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:22,732 INFO L478 AbstractCegarLoop]: Abstraction has 917 states and 1229 transitions. [2022-03-17 23:15:22,732 INFO L479 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) [2022-03-17 23:15:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1229 transitions. [2022-03-17 23:15:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 23:15:22,733 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:22,733 INFO L500 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] [2022-03-17 23:15:22,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:15:22,733 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:22,733 INFO L85 PathProgramCache]: Analyzing trace with hash -500504501, now seen corresponding path program 1 times [2022-03-17 23:15:22,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:22,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424198125] [2022-03-17 23:15:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:22,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-17 23:15:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:22,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424198125] [2022-03-17 23:15:22,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424198125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:22,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:22,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:22,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420586999] [2022-03-17 23:15:22,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:22,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:22,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:22,929 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) [2022-03-17 23:15:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:24,190 INFO L93 Difference]: Finished difference Result 1517 states and 1994 transitions. [2022-03-17 23:15:24,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:24,190 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 [2022-03-17 23:15:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:24,194 INFO L225 Difference]: With dead ends: 1517 [2022-03-17 23:15:24,194 INFO L226 Difference]: Without dead ends: 967 [2022-03-17 23:15:24,195 INFO L911 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 [2022-03-17 23:15:24,196 INFO L912 BasicCegarLoop]: 559 mSDtfsCounter, 2039 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:24,196 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2051 Valid, 845 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:24,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-03-17 23:15:24,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 908. [2022-03-17 23:15:24,244 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) [2022-03-17 23:15:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1208 transitions. [2022-03-17 23:15:24,246 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1208 transitions. Word has length 48 [2022-03-17 23:15:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:24,246 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1208 transitions. [2022-03-17 23:15:24,246 INFO L479 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) [2022-03-17 23:15:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1208 transitions. [2022-03-17 23:15:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:15:24,247 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:24,247 INFO L500 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] [2022-03-17 23:15:24,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:15:24,247 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:24,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash 336138752, now seen corresponding path program 1 times [2022-03-17 23:15:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:24,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607206809] [2022-03-17 23:15:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:24,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607206809] [2022-03-17 23:15:24,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607206809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:24,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:24,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:24,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912344207] [2022-03-17 23:15:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:24,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:24,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:24,425 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) [2022-03-17 23:15:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:25,678 INFO L93 Difference]: Finished difference Result 1185 states and 1572 transitions. [2022-03-17 23:15:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 23:15:25,679 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 [2022-03-17 23:15:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:25,682 INFO L225 Difference]: With dead ends: 1185 [2022-03-17 23:15:25,682 INFO L226 Difference]: Without dead ends: 1106 [2022-03-17 23:15:25,683 INFO L911 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 [2022-03-17 23:15:25,684 INFO L912 BasicCegarLoop]: 542 mSDtfsCounter, 1656 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:25,684 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1660 Valid, 1319 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-17 23:15:25,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 963. [2022-03-17 23:15:25,737 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) [2022-03-17 23:15:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1281 transitions. [2022-03-17 23:15:25,740 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1281 transitions. Word has length 50 [2022-03-17 23:15:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:25,740 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1281 transitions. [2022-03-17 23:15:25,740 INFO L479 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) [2022-03-17 23:15:25,740 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1281 transitions. [2022-03-17 23:15:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:15:25,742 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:25,742 INFO L500 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] [2022-03-17 23:15:25,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:15:25,742 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1890537656, now seen corresponding path program 1 times [2022-03-17 23:15:25,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:25,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461440459] [2022-03-17 23:15:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 23:15:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:25,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:25,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461440459] [2022-03-17 23:15:25,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461440459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:25,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:25,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 23:15:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965268575] [2022-03-17 23:15:25,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:25,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:15:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:15:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:15:25,920 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) [2022-03-17 23:15:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:26,826 INFO L93 Difference]: Finished difference Result 1010 states and 1334 transitions. [2022-03-17 23:15:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:26,826 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 [2022-03-17 23:15:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:26,829 INFO L225 Difference]: With dead ends: 1010 [2022-03-17 23:15:26,829 INFO L226 Difference]: Without dead ends: 990 [2022-03-17 23:15:26,830 INFO L911 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 [2022-03-17 23:15:26,831 INFO L912 BasicCegarLoop]: 457 mSDtfsCounter, 843 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:26,831 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 1428 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-03-17 23:15:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 963. [2022-03-17 23:15:26,895 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) [2022-03-17 23:15:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1269 transitions. [2022-03-17 23:15:26,897 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1269 transitions. Word has length 50 [2022-03-17 23:15:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:26,897 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1269 transitions. [2022-03-17 23:15:26,897 INFO L479 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) [2022-03-17 23:15:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1269 transitions. [2022-03-17 23:15:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:15:26,899 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:26,899 INFO L500 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] [2022-03-17 23:15:26,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:15:26,899 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:26,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 570524352, now seen corresponding path program 1 times [2022-03-17 23:15:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:26,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235884805] [2022-03-17 23:15:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-17 23:15:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:27,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:27,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235884805] [2022-03-17 23:15:27,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235884805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:27,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:27,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:27,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971301891] [2022-03-17 23:15:27,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:27,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:27,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:27,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:27,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:27,034 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) [2022-03-17 23:15:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:27,944 INFO L93 Difference]: Finished difference Result 1072 states and 1383 transitions. [2022-03-17 23:15:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 23:15:27,945 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 [2022-03-17 23:15:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:27,948 INFO L225 Difference]: With dead ends: 1072 [2022-03-17 23:15:27,948 INFO L226 Difference]: Without dead ends: 716 [2022-03-17 23:15:27,950 INFO L911 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 [2022-03-17 23:15:27,950 INFO L912 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 [2022-03-17 23:15:27,950 INFO L913 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] [2022-03-17 23:15:27,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-03-17 23:15:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 654. [2022-03-17 23:15:27,997 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) [2022-03-17 23:15:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2022-03-17 23:15:27,998 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 52 [2022-03-17 23:15:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:27,998 INFO L478 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2022-03-17 23:15:27,998 INFO L479 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) [2022-03-17 23:15:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2022-03-17 23:15:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 23:15:27,999 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:27,999 INFO L500 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] [2022-03-17 23:15:28,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:15:28,000 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 473481812, now seen corresponding path program 1 times [2022-03-17 23:15:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:28,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622881933] [2022-03-17 23:15:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:28,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:28,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622881933] [2022-03-17 23:15:28,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622881933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:28,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:28,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 23:15:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227737332] [2022-03-17 23:15:28,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:28,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:15:28,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:28,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:15:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:15:28,158 INFO L87 Difference]: Start difference. First operand 654 states and 829 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:29,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:29,311 INFO L93 Difference]: Finished difference Result 704 states and 886 transitions. [2022-03-17 23:15:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:29,313 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 [2022-03-17 23:15:29,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:29,315 INFO L225 Difference]: With dead ends: 704 [2022-03-17 23:15:29,315 INFO L226 Difference]: Without dead ends: 676 [2022-03-17 23:15:29,315 INFO L911 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 [2022-03-17 23:15:29,316 INFO L912 BasicCegarLoop]: 444 mSDtfsCounter, 403 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:29,316 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1482 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 23:15:29,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-03-17 23:15:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 644. [2022-03-17 23:15:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 513 states have (on average 1.267056530214425) internal successors, (650), 524 states have internal predecessors, (650), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 73 states have call predecessors, (90), 65 states have call successors, (90) [2022-03-17 23:15:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 814 transitions. [2022-03-17 23:15:29,354 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 814 transitions. Word has length 51 [2022-03-17 23:15:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:29,354 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 814 transitions. [2022-03-17 23:15:29,354 INFO L479 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) [2022-03-17 23:15:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 814 transitions. [2022-03-17 23:15:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 23:15:29,355 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:29,355 INFO L500 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] [2022-03-17 23:15:29,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:15:29,356 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:29,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash -138518503, now seen corresponding path program 1 times [2022-03-17 23:15:29,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:29,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914780729] [2022-03-17 23:15:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:29,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:29,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:29,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914780729] [2022-03-17 23:15:29,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914780729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:29,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:29,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 23:15:29,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826982454] [2022-03-17 23:15:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:29,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:15:29,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:15:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:15:29,508 INFO L87 Difference]: Start difference. First operand 644 states and 814 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 23:15:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:30,783 INFO L93 Difference]: Finished difference Result 700 states and 881 transitions. [2022-03-17 23:15:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 23:15:30,784 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 [2022-03-17 23:15:30,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:30,786 INFO L225 Difference]: With dead ends: 700 [2022-03-17 23:15:30,786 INFO L226 Difference]: Without dead ends: 678 [2022-03-17 23:15:30,786 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:15:30,790 INFO L912 BasicCegarLoop]: 405 mSDtfsCounter, 532 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:30,790 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 1094 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 23:15:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-03-17 23:15:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 647. [2022-03-17 23:15:30,827 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) [2022-03-17 23:15:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 817 transitions. [2022-03-17 23:15:30,829 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 817 transitions. Word has length 51 [2022-03-17 23:15:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:30,829 INFO L478 AbstractCegarLoop]: Abstraction has 647 states and 817 transitions. [2022-03-17 23:15:30,829 INFO L479 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) [2022-03-17 23:15:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 817 transitions. [2022-03-17 23:15:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:15:30,830 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:30,830 INFO L500 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] [2022-03-17 23:15:30,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:15:30,830 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:30,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:30,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1703742909, now seen corresponding path program 1 times [2022-03-17 23:15:30,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:30,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427965226] [2022-03-17 23:15:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:30,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:31,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:31,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427965226] [2022-03-17 23:15:31,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427965226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:31,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:31,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:31,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533078562] [2022-03-17 23:15:31,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:31,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:31,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:31,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:31,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:31,003 INFO L87 Difference]: Start difference. First operand 647 states and 817 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) [2022-03-17 23:15:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:31,693 INFO L93 Difference]: Finished difference Result 1084 states and 1393 transitions. [2022-03-17 23:15:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 23:15:31,693 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 [2022-03-17 23:15:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:31,696 INFO L225 Difference]: With dead ends: 1084 [2022-03-17 23:15:31,696 INFO L226 Difference]: Without dead ends: 707 [2022-03-17 23:15:31,697 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:15:31,698 INFO L912 BasicCegarLoop]: 400 mSDtfsCounter, 829 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:31,698 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 878 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-17 23:15:31,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-03-17 23:15:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 658. [2022-03-17 23:15:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 527 states have (on average 1.269449715370019) internal successors, (669), 537 states have internal predecessors, (669), 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) [2022-03-17 23:15:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 833 transitions. [2022-03-17 23:15:31,753 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 833 transitions. Word has length 52 [2022-03-17 23:15:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:31,753 INFO L478 AbstractCegarLoop]: Abstraction has 658 states and 833 transitions. [2022-03-17 23:15:31,753 INFO L479 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) [2022-03-17 23:15:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 833 transitions. [2022-03-17 23:15:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:15:31,754 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:31,754 INFO L500 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] [2022-03-17 23:15:31,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:15:31,754 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:31,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:31,754 INFO L85 PathProgramCache]: Analyzing trace with hash -350433212, now seen corresponding path program 1 times [2022-03-17 23:15:31,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:31,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563179608] [2022-03-17 23:15:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:31,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:31,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:31,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563179608] [2022-03-17 23:15:31,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563179608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:31,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:31,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 23:15:31,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143156450] [2022-03-17 23:15:31,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:31,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 23:15:31,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 23:15:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:31,957 INFO L87 Difference]: Start difference. First operand 658 states and 833 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) [2022-03-17 23:15:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:33,045 INFO L93 Difference]: Finished difference Result 783 states and 987 transitions. [2022-03-17 23:15:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 23:15:33,045 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 [2022-03-17 23:15:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:33,048 INFO L225 Difference]: With dead ends: 783 [2022-03-17 23:15:33,048 INFO L226 Difference]: Without dead ends: 701 [2022-03-17 23:15:33,048 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-03-17 23:15:33,049 INFO L912 BasicCegarLoop]: 402 mSDtfsCounter, 1296 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:33,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 1008 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-03-17 23:15:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 651. [2022-03-17 23:15:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 520 states have (on average 1.2653846153846153) internal successors, (658), 530 states have internal predecessors, (658), 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) [2022-03-17 23:15:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 822 transitions. [2022-03-17 23:15:33,109 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 822 transitions. Word has length 52 [2022-03-17 23:15:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:33,109 INFO L478 AbstractCegarLoop]: Abstraction has 651 states and 822 transitions. [2022-03-17 23:15:33,109 INFO L479 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) [2022-03-17 23:15:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 822 transitions. [2022-03-17 23:15:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:15:33,110 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:33,110 INFO L500 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] [2022-03-17 23:15:33,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:15:33,110 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 5804132, now seen corresponding path program 1 times [2022-03-17 23:15:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:33,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618526186] [2022-03-17 23:15:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:33,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:33,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618526186] [2022-03-17 23:15:33,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618526186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:33,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:33,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54952290] [2022-03-17 23:15:33,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:33,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:33,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:33,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:33,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:33,257 INFO L87 Difference]: Start difference. First operand 651 states and 822 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) [2022-03-17 23:15:34,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:34,585 INFO L93 Difference]: Finished difference Result 852 states and 1095 transitions. [2022-03-17 23:15:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:34,585 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 [2022-03-17 23:15:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:34,588 INFO L225 Difference]: With dead ends: 852 [2022-03-17 23:15:34,588 INFO L226 Difference]: Without dead ends: 834 [2022-03-17 23:15:34,588 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:34,588 INFO L912 BasicCegarLoop]: 576 mSDtfsCounter, 511 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:34,589 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1016 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-17 23:15:34,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-03-17 23:15:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 657. [2022-03-17 23:15:34,632 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) [2022-03-17 23:15:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2022-03-17 23:15:34,634 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 52 [2022-03-17 23:15:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:34,634 INFO L478 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2022-03-17 23:15:34,634 INFO L479 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) [2022-03-17 23:15:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2022-03-17 23:15:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-17 23:15:34,635 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:34,635 INFO L500 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] [2022-03-17 23:15:34,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:15:34,635 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash 211450194, now seen corresponding path program 1 times [2022-03-17 23:15:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:34,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076137222] [2022-03-17 23:15:34,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:34,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:34,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:34,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076137222] [2022-03-17 23:15:34,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076137222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:34,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:34,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 23:15:34,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891100650] [2022-03-17 23:15:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:34,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 23:15:34,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:34,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 23:15:34,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:34,836 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) [2022-03-17 23:15:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:36,102 INFO L93 Difference]: Finished difference Result 737 states and 931 transitions. [2022-03-17 23:15:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:36,102 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 [2022-03-17 23:15:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:36,104 INFO L225 Difference]: With dead ends: 737 [2022-03-17 23:15:36,104 INFO L226 Difference]: Without dead ends: 733 [2022-03-17 23:15:36,105 INFO L911 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 [2022-03-17 23:15:36,105 INFO L912 BasicCegarLoop]: 430 mSDtfsCounter, 478 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:36,106 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 1934 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2468 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 23:15:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-03-17 23:15:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 674. [2022-03-17 23:15:36,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 540 states have (on average 1.25) internal successors, (675), 550 states have internal predecessors, (675), 74 states have call successors, (74), 47 states have call predecessors, (74), 59 states have return successors, (100), 77 states have call predecessors, (100), 65 states have call successors, (100) [2022-03-17 23:15:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 849 transitions. [2022-03-17 23:15:36,151 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 849 transitions. Word has length 53 [2022-03-17 23:15:36,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:36,151 INFO L478 AbstractCegarLoop]: Abstraction has 674 states and 849 transitions. [2022-03-17 23:15:36,151 INFO L479 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) [2022-03-17 23:15:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 849 transitions. [2022-03-17 23:15:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-17 23:15:36,152 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:36,152 INFO L500 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] [2022-03-17 23:15:36,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:15:36,152 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:36,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash 211481938, now seen corresponding path program 1 times [2022-03-17 23:15:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256889611] [2022-03-17 23:15:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:36,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:36,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:36,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256889611] [2022-03-17 23:15:36,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256889611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:36,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:36,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 23:15:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897464003] [2022-03-17 23:15:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:36,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 23:15:36,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 23:15:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:36,318 INFO L87 Difference]: Start difference. First operand 674 states and 849 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) [2022-03-17 23:15:37,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:37,230 INFO L93 Difference]: Finished difference Result 719 states and 901 transitions. [2022-03-17 23:15:37,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:37,231 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 [2022-03-17 23:15:37,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:37,233 INFO L225 Difference]: With dead ends: 719 [2022-03-17 23:15:37,233 INFO L226 Difference]: Without dead ends: 704 [2022-03-17 23:15:37,233 INFO L911 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 [2022-03-17 23:15:37,234 INFO L912 BasicCegarLoop]: 434 mSDtfsCounter, 518 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:37,234 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 1790 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-03-17 23:15:37,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 671. [2022-03-17 23:15:37,277 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) [2022-03-17 23:15:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 845 transitions. [2022-03-17 23:15:37,278 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 845 transitions. Word has length 53 [2022-03-17 23:15:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:37,279 INFO L478 AbstractCegarLoop]: Abstraction has 671 states and 845 transitions. [2022-03-17 23:15:37,279 INFO L479 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) [2022-03-17 23:15:37,279 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 845 transitions. [2022-03-17 23:15:37,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 23:15:37,280 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:37,280 INFO L500 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] [2022-03-17 23:15:37,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:15:37,280 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:37,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1414064793, now seen corresponding path program 1 times [2022-03-17 23:15:37,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:37,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860122678] [2022-03-17 23:15:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 23:15:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 23:15:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:37,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860122678] [2022-03-17 23:15:37,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860122678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:37,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:37,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:37,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090618063] [2022-03-17 23:15:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:37,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:37,444 INFO L87 Difference]: Start difference. First operand 671 states and 845 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 23:15:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:38,431 INFO L93 Difference]: Finished difference Result 717 states and 897 transitions. [2022-03-17 23:15:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:38,431 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 [2022-03-17 23:15:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:38,433 INFO L225 Difference]: With dead ends: 717 [2022-03-17 23:15:38,433 INFO L226 Difference]: Without dead ends: 689 [2022-03-17 23:15:38,434 INFO L911 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 [2022-03-17 23:15:38,434 INFO L912 BasicCegarLoop]: 428 mSDtfsCounter, 456 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:38,434 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1731 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-03-17 23:15:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 659. [2022-03-17 23:15:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.25) internal successors, (660), 539 states have internal predecessors, (660), 72 states have call successors, (72), 46 states have call predecessors, (72), 58 states have return successors, (97), 74 states have call predecessors, (97), 63 states have call successors, (97) [2022-03-17 23:15:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 829 transitions. [2022-03-17 23:15:38,478 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 829 transitions. Word has length 55 [2022-03-17 23:15:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:38,478 INFO L478 AbstractCegarLoop]: Abstraction has 659 states and 829 transitions. [2022-03-17 23:15:38,479 INFO L479 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) [2022-03-17 23:15:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 829 transitions. [2022-03-17 23:15:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-17 23:15:38,479 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:38,479 INFO L500 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] [2022-03-17 23:15:38,480 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:15:38,480 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:38,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1737253539, now seen corresponding path program 1 times [2022-03-17 23:15:38,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:38,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919570991] [2022-03-17 23:15:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:38,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:38,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:38,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919570991] [2022-03-17 23:15:38,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919570991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:38,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:38,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:38,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424324949] [2022-03-17 23:15:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:38,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:38,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:38,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:38,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:38,623 INFO L87 Difference]: Start difference. First operand 659 states and 829 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 23:15:39,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:39,998 INFO L93 Difference]: Finished difference Result 842 states and 1079 transitions. [2022-03-17 23:15:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 23:15:39,999 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 [2022-03-17 23:15:39,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:40,001 INFO L225 Difference]: With dead ends: 842 [2022-03-17 23:15:40,001 INFO L226 Difference]: Without dead ends: 824 [2022-03-17 23:15:40,002 INFO L911 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 [2022-03-17 23:15:40,002 INFO L912 BasicCegarLoop]: 523 mSDtfsCounter, 1094 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:40,002 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 1067 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 23:15:40,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-03-17 23:15:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2022-03-17 23:15:40,064 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) [2022-03-17 23:15:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2022-03-17 23:15:40,065 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 54 [2022-03-17 23:15:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:40,065 INFO L478 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2022-03-17 23:15:40,065 INFO L479 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) [2022-03-17 23:15:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2022-03-17 23:15:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-17 23:15:40,066 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:40,066 INFO L500 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] [2022-03-17 23:15:40,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:15:40,066 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash -167913874, now seen corresponding path program 1 times [2022-03-17 23:15:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:40,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010691659] [2022-03-17 23:15:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:40,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:15:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-03-17 23:15:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:40,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:40,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010691659] [2022-03-17 23:15:40,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010691659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:40,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:40,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:15:40,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236885786] [2022-03-17 23:15:40,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:40,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:15:40,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:15:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:15:40,201 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 23:15:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:40,815 INFO L93 Difference]: Finished difference Result 991 states and 1256 transitions. [2022-03-17 23:15:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 23:15:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-03-17 23:15:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:40,818 INFO L225 Difference]: With dead ends: 991 [2022-03-17 23:15:40,818 INFO L226 Difference]: Without dead ends: 682 [2022-03-17 23:15:40,819 INFO L911 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 [2022-03-17 23:15:40,819 INFO L912 BasicCegarLoop]: 401 mSDtfsCounter, 416 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:40,819 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 833 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-17 23:15:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-03-17 23:15:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 648. [2022-03-17 23:15:40,865 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) [2022-03-17 23:15:40,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 811 transitions. [2022-03-17 23:15:40,866 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 811 transitions. Word has length 58 [2022-03-17 23:15:40,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:40,866 INFO L478 AbstractCegarLoop]: Abstraction has 648 states and 811 transitions. [2022-03-17 23:15:40,866 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 23:15:40,866 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 811 transitions. [2022-03-17 23:15:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:15:40,867 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:40,867 INFO L500 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] [2022-03-17 23:15:40,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:15:40,867 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:40,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash -852745671, now seen corresponding path program 1 times [2022-03-17 23:15:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463300167] [2022-03-17 23:15:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:40,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:15:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:15:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:41,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:41,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463300167] [2022-03-17 23:15:41,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463300167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:41,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:41,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:41,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420012727] [2022-03-17 23:15:41,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:41,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:41,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:41,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:41,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:41,065 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) [2022-03-17 23:15:41,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:41,816 INFO L93 Difference]: Finished difference Result 945 states and 1195 transitions. [2022-03-17 23:15:41,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:15:41,816 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 [2022-03-17 23:15:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:41,818 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:15:41,818 INFO L226 Difference]: Without dead ends: 631 [2022-03-17 23:15:41,820 INFO L911 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 [2022-03-17 23:15:41,820 INFO L912 BasicCegarLoop]: 404 mSDtfsCounter, 748 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:41,820 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 1171 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-03-17 23:15:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 593. [2022-03-17 23:15:41,877 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) [2022-03-17 23:15:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2022-03-17 23:15:41,878 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 64 [2022-03-17 23:15:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:41,878 INFO L478 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2022-03-17 23:15:41,878 INFO L479 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) [2022-03-17 23:15:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2022-03-17 23:15:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 23:15:41,879 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:41,879 INFO L500 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] [2022-03-17 23:15:41,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:15:41,879 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1291608918, now seen corresponding path program 1 times [2022-03-17 23:15:41,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:41,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375829189] [2022-03-17 23:15:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:41,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:41,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-17 23:15:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:42,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:42,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375829189] [2022-03-17 23:15:42,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375829189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:42,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:42,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:42,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557120980] [2022-03-17 23:15:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:42,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:42,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:42,041 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) [2022-03-17 23:15:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:43,368 INFO L93 Difference]: Finished difference Result 638 states and 785 transitions. [2022-03-17 23:15:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 23:15:43,368 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 [2022-03-17 23:15:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:43,377 INFO L225 Difference]: With dead ends: 638 [2022-03-17 23:15:43,385 INFO L226 Difference]: Without dead ends: 617 [2022-03-17 23:15:43,385 INFO L911 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 [2022-03-17 23:15:43,386 INFO L912 BasicCegarLoop]: 386 mSDtfsCounter, 428 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:43,386 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 1199 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 23:15:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-17 23:15:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2022-03-17 23:15:43,467 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) [2022-03-17 23:15:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 729 transitions. [2022-03-17 23:15:43,468 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 729 transitions. Word has length 59 [2022-03-17 23:15:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:43,468 INFO L478 AbstractCegarLoop]: Abstraction has 590 states and 729 transitions. [2022-03-17 23:15:43,468 INFO L479 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) [2022-03-17 23:15:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 729 transitions. [2022-03-17 23:15:43,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-17 23:15:43,469 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:43,469 INFO L500 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] [2022-03-17 23:15:43,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:15:43,469 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:43,469 INFO L85 PathProgramCache]: Analyzing trace with hash -565629154, now seen corresponding path program 1 times [2022-03-17 23:15:43,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:43,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759743076] [2022-03-17 23:15:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:43,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 23:15:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759743076] [2022-03-17 23:15:43,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759743076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:43,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:43,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 23:15:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334839345] [2022-03-17 23:15:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:43,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 23:15:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 23:15:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:43,634 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) [2022-03-17 23:15:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:44,701 INFO L93 Difference]: Finished difference Result 631 states and 776 transitions. [2022-03-17 23:15:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 23:15:44,702 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 [2022-03-17 23:15:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:44,704 INFO L225 Difference]: With dead ends: 631 [2022-03-17 23:15:44,704 INFO L226 Difference]: Without dead ends: 613 [2022-03-17 23:15:44,704 INFO L911 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 [2022-03-17 23:15:44,705 INFO L912 BasicCegarLoop]: 417 mSDtfsCounter, 448 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:44,705 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1671 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 23:15:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-17 23:15:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 586. [2022-03-17 23:15:44,747 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) [2022-03-17 23:15:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 723 transitions. [2022-03-17 23:15:44,748 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 723 transitions. Word has length 58 [2022-03-17 23:15:44,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:44,749 INFO L478 AbstractCegarLoop]: Abstraction has 586 states and 723 transitions. [2022-03-17 23:15:44,749 INFO L479 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) [2022-03-17 23:15:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 723 transitions. [2022-03-17 23:15:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 23:15:44,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:44,767 INFO L500 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] [2022-03-17 23:15:44,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:15:44,767 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:44,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:44,768 INFO L85 PathProgramCache]: Analyzing trace with hash 167534806, now seen corresponding path program 1 times [2022-03-17 23:15:44,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:44,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467611884] [2022-03-17 23:15:44,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:44,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 23:15:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-03-17 23:15:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:44,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:44,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467611884] [2022-03-17 23:15:44,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467611884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:44,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:44,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:44,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709427982] [2022-03-17 23:15:44,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:44,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:44,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:44,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:44,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:44,906 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) [2022-03-17 23:15:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:45,751 INFO L93 Difference]: Finished difference Result 644 states and 788 transitions. [2022-03-17 23:15:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:45,751 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 [2022-03-17 23:15:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:45,753 INFO L225 Difference]: With dead ends: 644 [2022-03-17 23:15:45,753 INFO L226 Difference]: Without dead ends: 620 [2022-03-17 23:15:45,753 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:15:45,754 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 591 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:45,754 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 979 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-03-17 23:15:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 581. [2022-03-17 23:15:45,797 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) [2022-03-17 23:15:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 715 transitions. [2022-03-17 23:15:45,798 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 715 transitions. Word has length 60 [2022-03-17 23:15:45,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:45,798 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 715 transitions. [2022-03-17 23:15:45,798 INFO L479 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) [2022-03-17 23:15:45,798 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 715 transitions. [2022-03-17 23:15:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:15:45,799 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:45,799 INFO L500 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] [2022-03-17 23:15:45,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:15:45,799 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:45,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1284427578, now seen corresponding path program 1 times [2022-03-17 23:15:45,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:45,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041762165] [2022-03-17 23:15:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:45,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:15:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:15:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:15:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:45,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:45,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041762165] [2022-03-17 23:15:45,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041762165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:45,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:45,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215286136] [2022-03-17 23:15:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:45,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:45,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:45,956 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) [2022-03-17 23:15:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:46,861 INFO L93 Difference]: Finished difference Result 873 states and 1087 transitions. [2022-03-17 23:15:46,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 23:15:46,862 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 [2022-03-17 23:15:46,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:46,863 INFO L225 Difference]: With dead ends: 873 [2022-03-17 23:15:46,863 INFO L226 Difference]: Without dead ends: 614 [2022-03-17 23:15:46,864 INFO L911 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 [2022-03-17 23:15:46,864 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 930 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:46,865 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [943 Valid, 914 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-03-17 23:15:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 581. [2022-03-17 23:15:46,907 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) [2022-03-17 23:15:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 713 transitions. [2022-03-17 23:15:46,908 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 713 transitions. Word has length 68 [2022-03-17 23:15:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:46,908 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 713 transitions. [2022-03-17 23:15:46,908 INFO L479 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) [2022-03-17 23:15:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 713 transitions. [2022-03-17 23:15:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:15:46,909 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:46,909 INFO L500 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] [2022-03-17 23:15:46,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:15:46,909 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash 122742069, now seen corresponding path program 1 times [2022-03-17 23:15:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:46,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207318308] [2022-03-17 23:15:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:47,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 23:15:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:47,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:47,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207318308] [2022-03-17 23:15:47,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207318308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:47,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:47,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 23:15:47,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950420711] [2022-03-17 23:15:47,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:47,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 23:15:47,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:47,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 23:15:47,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:15:47,052 INFO L87 Difference]: Start difference. First operand 581 states and 713 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) [2022-03-17 23:15:47,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:47,998 INFO L93 Difference]: Finished difference Result 703 states and 855 transitions. [2022-03-17 23:15:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 23:15:47,999 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 [2022-03-17 23:15:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:48,000 INFO L225 Difference]: With dead ends: 703 [2022-03-17 23:15:48,000 INFO L226 Difference]: Without dead ends: 611 [2022-03-17 23:15:48,001 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:48,001 INFO L912 BasicCegarLoop]: 392 mSDtfsCounter, 635 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:48,001 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 891 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:48,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-03-17 23:15:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 585. [2022-03-17 23:15:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 466 states have (on average 1.2296137339055795) internal successors, (573), 474 states have internal predecessors, (573), 66 states have call successors, (66), 45 states have call predecessors, (66), 52 states have return successors, (78), 66 states have call predecessors, (78), 58 states have call successors, (78) [2022-03-17 23:15:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 717 transitions. [2022-03-17 23:15:48,043 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 717 transitions. Word has length 63 [2022-03-17 23:15:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:48,043 INFO L478 AbstractCegarLoop]: Abstraction has 585 states and 717 transitions. [2022-03-17 23:15:48,043 INFO L479 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) [2022-03-17 23:15:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 717 transitions. [2022-03-17 23:15:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:15:48,044 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:48,044 INFO L500 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] [2022-03-17 23:15:48,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:15:48,044 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:48,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:48,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1923447467, now seen corresponding path program 1 times [2022-03-17 23:15:48,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:48,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897035742] [2022-03-17 23:15:48,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:48,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 23:15:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:48,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:48,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897035742] [2022-03-17 23:15:48,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897035742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:48,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:48,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:48,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918162325] [2022-03-17 23:15:48,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:48,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:48,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:48,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:48,214 INFO L87 Difference]: Start difference. First operand 585 states and 717 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) [2022-03-17 23:15:49,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:49,107 INFO L93 Difference]: Finished difference Result 618 states and 755 transitions. [2022-03-17 23:15:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:49,107 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 [2022-03-17 23:15:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:49,110 INFO L225 Difference]: With dead ends: 618 [2022-03-17 23:15:49,111 INFO L226 Difference]: Without dead ends: 594 [2022-03-17 23:15:49,111 INFO L911 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 [2022-03-17 23:15:49,111 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 506 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:49,112 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 1122 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-03-17 23:15:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 571. [2022-03-17 23:15:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 454 states have (on average 1.224669603524229) internal successors, (556), 461 states have internal predecessors, (556), 65 states have call successors, (65), 45 states have call predecessors, (65), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2022-03-17 23:15:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 698 transitions. [2022-03-17 23:15:49,204 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 698 transitions. Word has length 63 [2022-03-17 23:15:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:49,204 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 698 transitions. [2022-03-17 23:15:49,204 INFO L479 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) [2022-03-17 23:15:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 698 transitions. [2022-03-17 23:15:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:15:49,205 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:49,205 INFO L500 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] [2022-03-17 23:15:49,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:15:49,219 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1303988576, now seen corresponding path program 1 times [2022-03-17 23:15:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:49,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191217215] [2022-03-17 23:15:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:49,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:49,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:49,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191217215] [2022-03-17 23:15:49,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191217215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:49,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:49,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:49,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328368678] [2022-03-17 23:15:49,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:49,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:49,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:49,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:49,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:49,387 INFO L87 Difference]: Start difference. First operand 571 states and 698 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) [2022-03-17 23:15:50,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:50,418 INFO L93 Difference]: Finished difference Result 616 states and 748 transitions. [2022-03-17 23:15:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:50,419 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 [2022-03-17 23:15:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:50,420 INFO L225 Difference]: With dead ends: 616 [2022-03-17 23:15:50,420 INFO L226 Difference]: Without dead ends: 590 [2022-03-17 23:15:50,421 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-03-17 23:15:50,422 INFO L912 BasicCegarLoop]: 379 mSDtfsCounter, 376 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:50,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 967 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-17 23:15:50,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2022-03-17 23:15:50,469 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) [2022-03-17 23:15:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 688 transitions. [2022-03-17 23:15:50,470 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 688 transitions. Word has length 63 [2022-03-17 23:15:50,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:50,471 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 688 transitions. [2022-03-17 23:15:50,471 INFO L479 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) [2022-03-17 23:15:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 688 transitions. [2022-03-17 23:15:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 23:15:50,472 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:50,472 INFO L500 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] [2022-03-17 23:15:50,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:15:50,472 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash -343974296, now seen corresponding path program 1 times [2022-03-17 23:15:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217887685] [2022-03-17 23:15:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:15:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:15:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:15:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:50,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:50,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217887685] [2022-03-17 23:15:50,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217887685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:50,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:50,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:15:50,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986527085] [2022-03-17 23:15:50,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:50,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:15:50,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:15:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:15:50,686 INFO L87 Difference]: Start difference. First operand 563 states and 688 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) [2022-03-17 23:15:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:51,714 INFO L93 Difference]: Finished difference Result 841 states and 1039 transitions. [2022-03-17 23:15:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-17 23:15:51,715 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 [2022-03-17 23:15:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:51,716 INFO L225 Difference]: With dead ends: 841 [2022-03-17 23:15:51,716 INFO L226 Difference]: Without dead ends: 615 [2022-03-17 23:15:51,717 INFO L911 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 [2022-03-17 23:15:51,717 INFO L912 BasicCegarLoop]: 395 mSDtfsCounter, 295 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:51,717 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1541 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:15:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-03-17 23:15:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 563. [2022-03-17 23:15:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 448 states have (on average 1.2232142857142858) internal successors, (548), 456 states have internal predecessors, (548), 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) [2022-03-17 23:15:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 686 transitions. [2022-03-17 23:15:51,761 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 686 transitions. Word has length 71 [2022-03-17 23:15:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:51,761 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 686 transitions. [2022-03-17 23:15:51,761 INFO L479 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) [2022-03-17 23:15:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 686 transitions. [2022-03-17 23:15:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:15:51,762 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:51,762 INFO L500 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] [2022-03-17 23:15:51,762 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:15:51,762 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:51,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash -795445846, now seen corresponding path program 1 times [2022-03-17 23:15:51,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:51,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904304272] [2022-03-17 23:15:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 23:15:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 23:15:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:51,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:51,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904304272] [2022-03-17 23:15:51,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904304272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:51,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:51,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 23:15:51,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648746585] [2022-03-17 23:15:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:51,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:15:51,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:15:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:15:51,937 INFO L87 Difference]: Start difference. First operand 563 states and 686 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) [2022-03-17 23:15:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:52,851 INFO L93 Difference]: Finished difference Result 600 states and 730 transitions. [2022-03-17 23:15:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:52,851 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 [2022-03-17 23:15:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:52,852 INFO L225 Difference]: With dead ends: 600 [2022-03-17 23:15:52,853 INFO L226 Difference]: Without dead ends: 575 [2022-03-17 23:15:52,853 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:15:52,853 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 579 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:52,853 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 904 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:52,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-03-17 23:15:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 543. [2022-03-17 23:15:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 431 states have (on average 1.2273781902552203) internal successors, (529), 439 states have internal predecessors, (529), 63 states have call successors, (63), 44 states have call predecessors, (63), 48 states have return successors, (72), 60 states have call predecessors, (72), 56 states have call successors, (72) [2022-03-17 23:15:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 664 transitions. [2022-03-17 23:15:52,894 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 664 transitions. Word has length 64 [2022-03-17 23:15:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:52,895 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 664 transitions. [2022-03-17 23:15:52,895 INFO L479 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) [2022-03-17 23:15:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 664 transitions. [2022-03-17 23:15:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:15:52,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:52,895 INFO L500 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] [2022-03-17 23:15:52,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:15:52,896 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1222711343, now seen corresponding path program 1 times [2022-03-17 23:15:52,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:52,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39570884] [2022-03-17 23:15:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:52,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:53,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:53,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39570884] [2022-03-17 23:15:53,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39570884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:53,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:53,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59580139] [2022-03-17 23:15:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:53,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:53,091 INFO L87 Difference]: Start difference. First operand 543 states and 664 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) [2022-03-17 23:15:53,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:53,994 INFO L93 Difference]: Finished difference Result 587 states and 715 transitions. [2022-03-17 23:15:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:53,994 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 [2022-03-17 23:15:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:53,996 INFO L225 Difference]: With dead ends: 587 [2022-03-17 23:15:53,996 INFO L226 Difference]: Without dead ends: 566 [2022-03-17 23:15:53,996 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:15:53,997 INFO L912 BasicCegarLoop]: 388 mSDtfsCounter, 778 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:53,997 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [782 Valid, 1680 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-17 23:15:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 539. [2022-03-17 23:15:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 428 states have (on average 1.2266355140186915) internal successors, (525), 436 states have internal predecessors, (525), 62 states have call successors, (62), 44 states have call predecessors, (62), 48 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2022-03-17 23:15:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 658 transitions. [2022-03-17 23:15:54,039 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 658 transitions. Word has length 63 [2022-03-17 23:15:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:54,039 INFO L478 AbstractCegarLoop]: Abstraction has 539 states and 658 transitions. [2022-03-17 23:15:54,039 INFO L479 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) [2022-03-17 23:15:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 658 transitions. [2022-03-17 23:15:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:15:54,040 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:54,040 INFO L500 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] [2022-03-17 23:15:54,040 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:15:54,040 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:54,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash 104682271, now seen corresponding path program 1 times [2022-03-17 23:15:54,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:54,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219189817] [2022-03-17 23:15:54,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-17 23:15:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:54,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:54,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219189817] [2022-03-17 23:15:54,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219189817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:54,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:54,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 23:15:54,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234482346] [2022-03-17 23:15:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:54,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 23:15:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 23:15:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:54,196 INFO L87 Difference]: Start difference. First operand 539 states and 658 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) [2022-03-17 23:15:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:54,979 INFO L93 Difference]: Finished difference Result 577 states and 702 transitions. [2022-03-17 23:15:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:54,979 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 [2022-03-17 23:15:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:54,981 INFO L225 Difference]: With dead ends: 577 [2022-03-17 23:15:54,981 INFO L226 Difference]: Without dead ends: 555 [2022-03-17 23:15:54,981 INFO L911 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 [2022-03-17 23:15:54,982 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 490 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:54,982 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1544 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-17 23:15:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 528. [2022-03-17 23:15:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 419 states have (on average 1.224343675417661) internal successors, (513), 427 states have internal predecessors, (513), 61 states have call successors, (61), 44 states have call predecessors, (61), 47 states have return successors, (69), 57 states have call predecessors, (69), 54 states have call successors, (69) [2022-03-17 23:15:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 643 transitions. [2022-03-17 23:15:55,023 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 643 transitions. Word has length 64 [2022-03-17 23:15:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:55,023 INFO L478 AbstractCegarLoop]: Abstraction has 528 states and 643 transitions. [2022-03-17 23:15:55,023 INFO L479 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) [2022-03-17 23:15:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 643 transitions. [2022-03-17 23:15:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:15:55,024 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:55,024 INFO L500 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] [2022-03-17 23:15:55,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:15:55,024 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:55,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:55,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1688169128, now seen corresponding path program 1 times [2022-03-17 23:15:55,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:55,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414543354] [2022-03-17 23:15:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:55,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:15:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:55,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414543354] [2022-03-17 23:15:55,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414543354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:55,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:55,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771453216] [2022-03-17 23:15:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:55,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:55,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:55,192 INFO L87 Difference]: Start difference. First operand 528 states and 643 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) [2022-03-17 23:15:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:55,955 INFO L93 Difference]: Finished difference Result 572 states and 694 transitions. [2022-03-17 23:15:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:55,955 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 [2022-03-17 23:15:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:55,956 INFO L225 Difference]: With dead ends: 572 [2022-03-17 23:15:55,956 INFO L226 Difference]: Without dead ends: 550 [2022-03-17 23:15:55,957 INFO L911 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 [2022-03-17 23:15:55,957 INFO L912 BasicCegarLoop]: 386 mSDtfsCounter, 583 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:55,957 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1781 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-17 23:15:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 523. [2022-03-17 23:15:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 415 states have (on average 1.2240963855421687) internal successors, (508), 423 states have internal predecessors, (508), 60 states have call successors, (60), 44 states have call predecessors, (60), 47 states have return successors, (68), 56 states have call predecessors, (68), 53 states have call successors, (68) [2022-03-17 23:15:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 636 transitions. [2022-03-17 23:15:56,003 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 636 transitions. Word has length 64 [2022-03-17 23:15:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:56,004 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 636 transitions. [2022-03-17 23:15:56,004 INFO L479 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) [2022-03-17 23:15:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 636 transitions. [2022-03-17 23:15:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:15:56,004 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:56,004 INFO L500 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] [2022-03-17 23:15:56,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:15:56,005 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:56,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:56,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1342005334, now seen corresponding path program 1 times [2022-03-17 23:15:56,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:56,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286665712] [2022-03-17 23:15:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:56,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:15:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:56,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:56,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286665712] [2022-03-17 23:15:56,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286665712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:56,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:56,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501170861] [2022-03-17 23:15:56,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:56,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:56,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:56,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:56,175 INFO L87 Difference]: Start difference. First operand 523 states and 636 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) [2022-03-17 23:15:57,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:57,033 INFO L93 Difference]: Finished difference Result 567 states and 687 transitions. [2022-03-17 23:15:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:57,033 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 [2022-03-17 23:15:57,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:57,034 INFO L225 Difference]: With dead ends: 567 [2022-03-17 23:15:57,035 INFO L226 Difference]: Without dead ends: 546 [2022-03-17 23:15:57,035 INFO L911 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 [2022-03-17 23:15:57,035 INFO L912 BasicCegarLoop]: 366 mSDtfsCounter, 572 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:57,035 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 1597 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:15:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-17 23:15:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 519. [2022-03-17 23:15:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2233009708737863) internal successors, (504), 420 states have internal predecessors, (504), 59 states have call successors, (59), 44 states have call predecessors, (59), 47 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2022-03-17 23:15:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 630 transitions. [2022-03-17 23:15:57,086 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 630 transitions. Word has length 64 [2022-03-17 23:15:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:57,086 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 630 transitions. [2022-03-17 23:15:57,086 INFO L479 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) [2022-03-17 23:15:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 630 transitions. [2022-03-17 23:15:57,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 23:15:57,087 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:57,087 INFO L500 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] [2022-03-17 23:15:57,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:15:57,088 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:57,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:57,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2065552390, now seen corresponding path program 1 times [2022-03-17 23:15:57,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:57,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953473833] [2022-03-17 23:15:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:57,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:15:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:15:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:15:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:15:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:57,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953473833] [2022-03-17 23:15:57,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953473833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:57,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:57,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 23:15:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956584524] [2022-03-17 23:15:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:57,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 23:15:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 23:15:57,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-17 23:15:57,249 INFO L87 Difference]: Start difference. First operand 519 states and 630 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) [2022-03-17 23:15:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:57,869 INFO L93 Difference]: Finished difference Result 943 states and 1157 transitions. [2022-03-17 23:15:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 23:15:57,870 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 [2022-03-17 23:15:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:57,872 INFO L225 Difference]: With dead ends: 943 [2022-03-17 23:15:57,872 INFO L226 Difference]: Without dead ends: 690 [2022-03-17 23:15:57,872 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:15:57,873 INFO L912 BasicCegarLoop]: 426 mSDtfsCounter, 708 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:57,873 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 969 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-17 23:15:57,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-03-17 23:15:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 640. [2022-03-17 23:15:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 505 states have (on average 1.2158415841584158) internal successors, (614), 515 states have internal predecessors, (614), 72 states have call successors, (72), 54 states have call predecessors, (72), 62 states have return successors, (92), 71 states have call predecessors, (92), 66 states have call successors, (92) [2022-03-17 23:15:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 778 transitions. [2022-03-17 23:15:57,922 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 778 transitions. Word has length 73 [2022-03-17 23:15:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:57,922 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 778 transitions. [2022-03-17 23:15:57,922 INFO L479 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) [2022-03-17 23:15:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 778 transitions. [2022-03-17 23:15:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:15:57,923 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:57,923 INFO L500 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] [2022-03-17 23:15:57,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:15:57,923 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:57,923 INFO L85 PathProgramCache]: Analyzing trace with hash -434332053, now seen corresponding path program 1 times [2022-03-17 23:15:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:57,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321377889] [2022-03-17 23:15:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:57,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:15:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-03-17 23:15:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:58,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321377889] [2022-03-17 23:15:58,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321377889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:58,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:58,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:15:58,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252347570] [2022-03-17 23:15:58,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:58,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:15:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:58,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:15:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:15:58,083 INFO L87 Difference]: Start difference. First operand 640 states and 778 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) [2022-03-17 23:15:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:15:58,840 INFO L93 Difference]: Finished difference Result 684 states and 830 transitions. [2022-03-17 23:15:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 23:15:58,841 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 [2022-03-17 23:15:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:15:58,842 INFO L225 Difference]: With dead ends: 684 [2022-03-17 23:15:58,842 INFO L226 Difference]: Without dead ends: 641 [2022-03-17 23:15:58,843 INFO L911 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 [2022-03-17 23:15:58,843 INFO L912 BasicCegarLoop]: 358 mSDtfsCounter, 573 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:15:58,843 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 1584 Invalid, 2230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:15:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-03-17 23:15:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 614. [2022-03-17 23:15:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 484 states have (on average 1.2148760330578512) internal successors, (588), 494 states have internal predecessors, (588), 69 states have call successors, (69), 52 states have call predecessors, (69), 60 states have return successors, (89), 68 states have call predecessors, (89), 63 states have call successors, (89) [2022-03-17 23:15:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 746 transitions. [2022-03-17 23:15:58,923 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 746 transitions. Word has length 68 [2022-03-17 23:15:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:15:58,924 INFO L478 AbstractCegarLoop]: Abstraction has 614 states and 746 transitions. [2022-03-17 23:15:58,924 INFO L479 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) [2022-03-17 23:15:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 746 transitions. [2022-03-17 23:15:58,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 23:15:58,924 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:15:58,924 INFO L500 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] [2022-03-17 23:15:58,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:15:58,925 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:15:58,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:15:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash 716016786, now seen corresponding path program 1 times [2022-03-17 23:15:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:15:58,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085405103] [2022-03-17 23:15:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:15:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:15:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:15:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:15:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:15:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 23:15:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 23:15:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 23:15:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-17 23:15:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:15:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:15:59,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:15:59,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085405103] [2022-03-17 23:15:59,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085405103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:15:59,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:15:59,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-17 23:15:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180242983] [2022-03-17 23:15:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:15:59,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-17 23:15:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:15:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-17 23:15:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-03-17 23:15:59,092 INFO L87 Difference]: Start difference. First operand 614 states and 746 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) [2022-03-17 23:16:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:00,303 INFO L93 Difference]: Finished difference Result 654 states and 793 transitions. [2022-03-17 23:16:00,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 23:16:00,304 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 [2022-03-17 23:16:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:00,305 INFO L225 Difference]: With dead ends: 654 [2022-03-17 23:16:00,305 INFO L226 Difference]: Without dead ends: 600 [2022-03-17 23:16:00,306 INFO L911 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 [2022-03-17 23:16:00,306 INFO L912 BasicCegarLoop]: 324 mSDtfsCounter, 398 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:00,306 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 979 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 23:16:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-17 23:16:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-03-17 23:16:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 450 states have (on average 1.208888888888889) internal successors, (544), 460 states have internal predecessors, (544), 65 states have call successors, (65), 49 states have call predecessors, (65), 57 states have return successors, (85), 64 states have call predecessors, (85), 59 states have call successors, (85) [2022-03-17 23:16:00,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 694 transitions. [2022-03-17 23:16:00,372 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 694 transitions. Word has length 71 [2022-03-17 23:16:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:00,373 INFO L478 AbstractCegarLoop]: Abstraction has 573 states and 694 transitions. [2022-03-17 23:16:00,373 INFO L479 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) [2022-03-17 23:16:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 694 transitions. [2022-03-17 23:16:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 23:16:00,373 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:00,373 INFO L500 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] [2022-03-17 23:16:00,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:16:00,374 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:00,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash 51937116, now seen corresponding path program 1 times [2022-03-17 23:16:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:00,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539202215] [2022-03-17 23:16:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:00,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:16:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:16:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:16:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-17 23:16:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:16:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:16:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-03-17 23:16:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:16:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:16:00,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539202215] [2022-03-17 23:16:00,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539202215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:16:00,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:16:00,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 23:16:00,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614537615] [2022-03-17 23:16:00,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:16:00,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:16:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:16:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:16:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:16:00,525 INFO L87 Difference]: Start difference. First operand 573 states and 694 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) [2022-03-17 23:16:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:01,324 INFO L93 Difference]: Finished difference Result 905 states and 1103 transitions. [2022-03-17 23:16:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 23:16:01,325 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 [2022-03-17 23:16:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:01,328 INFO L225 Difference]: With dead ends: 905 [2022-03-17 23:16:01,328 INFO L226 Difference]: Without dead ends: 588 [2022-03-17 23:16:01,329 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-03-17 23:16:01,329 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 435 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:01,329 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1074 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-17 23:16:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-17 23:16:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 555. [2022-03-17 23:16:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.2087155963302751) internal successors, (527), 445 states have internal predecessors, (527), 63 states have call successors, (63), 49 states have call predecessors, (63), 55 states have return successors, (74), 61 states have call predecessors, (74), 57 states have call successors, (74) [2022-03-17 23:16:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2022-03-17 23:16:01,375 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 82 [2022-03-17 23:16:01,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:01,376 INFO L478 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2022-03-17 23:16:01,376 INFO L479 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) [2022-03-17 23:16:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2022-03-17 23:16:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:16:01,376 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:01,377 INFO L500 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] [2022-03-17 23:16:01,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:16:01,377 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1630108315, now seen corresponding path program 1 times [2022-03-17 23:16:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:01,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720650666] [2022-03-17 23:16:01,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:16:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:16:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:16:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-17 23:16:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:16:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:16:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-03-17 23:16:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:16:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:16:01,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:16:01,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720650666] [2022-03-17 23:16:01,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720650666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:16:01,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:16:01,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 23:16:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48767118] [2022-03-17 23:16:01,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:16:01,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:16:01,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:16:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:16:01,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:16:01,554 INFO L87 Difference]: Start difference. First operand 555 states and 664 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) [2022-03-17 23:16:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:02,536 INFO L93 Difference]: Finished difference Result 918 states and 1138 transitions. [2022-03-17 23:16:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-17 23:16:02,536 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 [2022-03-17 23:16:02,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:02,544 INFO L225 Difference]: With dead ends: 918 [2022-03-17 23:16:02,544 INFO L226 Difference]: Without dead ends: 664 [2022-03-17 23:16:02,555 INFO L911 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 [2022-03-17 23:16:02,555 INFO L912 BasicCegarLoop]: 357 mSDtfsCounter, 337 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:02,556 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 1647 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:16:02,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-03-17 23:16:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 519. [2022-03-17 23:16:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2087378640776698) internal successors, (498), 419 states have internal predecessors, (498), 56 states have call successors, (56), 43 states have call predecessors, (56), 50 states have return successors, (64), 57 states have call predecessors, (64), 51 states have call successors, (64) [2022-03-17 23:16:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 618 transitions. [2022-03-17 23:16:02,612 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 618 transitions. Word has length 83 [2022-03-17 23:16:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:02,613 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 618 transitions. [2022-03-17 23:16:02,613 INFO L479 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) [2022-03-17 23:16:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 618 transitions. [2022-03-17 23:16:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-17 23:16:02,613 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:02,613 INFO L500 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] [2022-03-17 23:16:02,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 23:16:02,614 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1973979160, now seen corresponding path program 1 times [2022-03-17 23:16:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:02,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882877484] [2022-03-17 23:16:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:02,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:16:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:16:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:16:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:16:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:16:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:16:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-03-17 23:16:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:16:02,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:16:02,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882877484] [2022-03-17 23:16:02,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882877484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:16:02,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:16:02,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 23:16:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143735380] [2022-03-17 23:16:02,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:16:02,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 23:16:02,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:16:02,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 23:16:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:16:02,841 INFO L87 Difference]: Start difference. First operand 519 states and 618 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) [2022-03-17 23:16:03,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:03,676 INFO L93 Difference]: Finished difference Result 597 states and 710 transitions. [2022-03-17 23:16:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-17 23:16:03,676 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 [2022-03-17 23:16:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:03,677 INFO L225 Difference]: With dead ends: 597 [2022-03-17 23:16:03,678 INFO L226 Difference]: Without dead ends: 576 [2022-03-17 23:16:03,678 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-03-17 23:16:03,678 INFO L912 BasicCegarLoop]: 307 mSDtfsCounter, 427 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:03,678 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 1722 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-17 23:16:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-03-17 23:16:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 527. [2022-03-17 23:16:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 419 states have (on average 1.2052505966587113) internal successors, (505), 426 states have internal predecessors, (505), 56 states have call successors, (56), 43 states have call predecessors, (56), 51 states have return successors, (67), 58 states have call predecessors, (67), 51 states have call successors, (67) [2022-03-17 23:16:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 628 transitions. [2022-03-17 23:16:03,720 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 628 transitions. Word has length 88 [2022-03-17 23:16:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:03,720 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 628 transitions. [2022-03-17 23:16:03,720 INFO L479 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) [2022-03-17 23:16:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 628 transitions. [2022-03-17 23:16:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 23:16:03,721 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:03,721 INFO L500 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] [2022-03-17 23:16:03,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 23:16:03,721 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:03,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1885499687, now seen corresponding path program 1 times [2022-03-17 23:16:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:03,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987936966] [2022-03-17 23:16:03,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:03,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:16:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:16:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:16:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:16:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 23:16:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 23:16:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 23:16:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-03-17 23:16:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:16:03,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:16:03,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987936966] [2022-03-17 23:16:03,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987936966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:16:03,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:16:03,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 23:16:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650067189] [2022-03-17 23:16:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:16:03,902 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 23:16:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:16:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 23:16:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-17 23:16:03,903 INFO L87 Difference]: Start difference. First operand 527 states and 628 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) [2022-03-17 23:16:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:04,965 INFO L93 Difference]: Finished difference Result 597 states and 709 transitions. [2022-03-17 23:16:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-17 23:16:04,966 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 [2022-03-17 23:16:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:04,967 INFO L225 Difference]: With dead ends: 597 [2022-03-17 23:16:04,967 INFO L226 Difference]: Without dead ends: 576 [2022-03-17 23:16:04,968 INFO L911 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 [2022-03-17 23:16:04,969 INFO L912 BasicCegarLoop]: 323 mSDtfsCounter, 330 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:04,969 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1870 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 23:16:04,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-03-17 23:16:05,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 519. [2022-03-17 23:16:05,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2063106796116505) internal successors, (497), 419 states have internal predecessors, (497), 56 states have call successors, (56), 43 states have call predecessors, (56), 50 states have return successors, (64), 57 states have call predecessors, (64), 51 states have call successors, (64) [2022-03-17 23:16:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 617 transitions. [2022-03-17 23:16:05,031 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 617 transitions. Word has length 89 [2022-03-17 23:16:05,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:05,031 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 617 transitions. [2022-03-17 23:16:05,031 INFO L479 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) [2022-03-17 23:16:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 617 transitions. [2022-03-17 23:16:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:16:05,032 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:05,032 INFO L500 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] [2022-03-17 23:16:05,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 23:16:05,032 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:05,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1284112929, now seen corresponding path program 1 times [2022-03-17 23:16:05,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:05,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438303931] [2022-03-17 23:16:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:16:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 23:16:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 23:16:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-17 23:16:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 23:16:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 23:16:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-17 23:16:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:16:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:16:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:16:05,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438303931] [2022-03-17 23:16:05,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438303931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:16:05,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:16:05,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 23:16:05,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087963489] [2022-03-17 23:16:05,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:16:05,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 23:16:05,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:16:05,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 23:16:05,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:16:05,201 INFO L87 Difference]: Start difference. First operand 519 states and 617 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) [2022-03-17 23:16:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:16:06,250 INFO L93 Difference]: Finished difference Result 1008 states and 1184 transitions. [2022-03-17 23:16:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 23:16:06,251 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 [2022-03-17 23:16:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:16:06,252 INFO L225 Difference]: With dead ends: 1008 [2022-03-17 23:16:06,253 INFO L226 Difference]: Without dead ends: 666 [2022-03-17 23:16:06,253 INFO L911 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 [2022-03-17 23:16:06,254 INFO L912 BasicCegarLoop]: 336 mSDtfsCounter, 714 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:16:06,254 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 563 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 23:16:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-17 23:16:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 640. [2022-03-17 23:16:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 509 states have (on average 1.1984282907662083) internal successors, (610), 518 states have internal predecessors, (610), 64 states have call successors, (64), 55 states have call predecessors, (64), 66 states have return successors, (76), 67 states have call predecessors, (76), 59 states have call successors, (76) [2022-03-17 23:16:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 750 transitions. [2022-03-17 23:16:06,308 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 750 transitions. Word has length 84 [2022-03-17 23:16:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:16:06,308 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 750 transitions. [2022-03-17 23:16:06,308 INFO L479 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) [2022-03-17 23:16:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 750 transitions. [2022-03-17 23:16:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:16:06,309 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:16:06,309 INFO L500 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] [2022-03-17 23:16:06,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 23:16:06,309 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:16:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:16:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash -356676981, now seen corresponding path program 1 times [2022-03-17 23:16:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:16:06,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383337703] [2022-03-17 23:16:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:16:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:16:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 23:16:06,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-17 23:16:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 23:16:06,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-17 23:16:06,369 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-17 23:16:06,370 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 23:16:06,371 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:16:06,373 INFO L718 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] [2022-03-17 23:16:06,375 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 23:16:06,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:16:06 BasicIcfg [2022-03-17 23:16:06,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 23:16:06,451 INFO L158 Benchmark]: Toolchain (without parser) took 66970.68ms. Allocated memory was 220.2MB in the beginning and 547.4MB in the end (delta: 327.2MB). Free memory was 163.9MB in the beginning and 197.1MB in the end (delta: -33.2MB). Peak memory consumption was 294.9MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,451 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 220.2MB. Free memory is still 181.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 23:16:06,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.24ms. Allocated memory was 220.2MB in the beginning and 284.2MB in the end (delta: 64.0MB). Free memory was 163.7MB in the beginning and 244.6MB in the end (delta: -80.8MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,452 INFO L158 Benchmark]: Boogie Preprocessor took 80.91ms. Allocated memory is still 284.2MB. Free memory was 244.6MB in the beginning and 240.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,452 INFO L158 Benchmark]: RCFGBuilder took 983.48ms. Allocated memory is still 284.2MB. Free memory was 240.4MB in the beginning and 187.3MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,452 INFO L158 Benchmark]: IcfgTransformer took 51.91ms. Allocated memory is still 284.2MB. Free memory was 187.3MB in the beginning and 181.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,452 INFO L158 Benchmark]: TraceAbstraction took 65476.65ms. Allocated memory was 284.2MB in the beginning and 547.4MB in the end (delta: 263.2MB). Free memory was 180.4MB in the beginning and 197.1MB in the end (delta: -16.7MB). Peak memory consumption was 247.7MB. Max. memory is 8.0GB. [2022-03-17 23:16:06,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 220.2MB. Free memory is still 181.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 363.24ms. Allocated memory was 220.2MB in the beginning and 284.2MB in the end (delta: 64.0MB). Free memory was 163.7MB in the beginning and 244.6MB in the end (delta: -80.8MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.91ms. Allocated memory is still 284.2MB. Free memory was 244.6MB in the beginning and 240.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 983.48ms. Allocated memory is still 284.2MB. Free memory was 240.4MB in the beginning and 187.3MB in the end (delta: 53.0MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * IcfgTransformer took 51.91ms. Allocated memory is still 284.2MB. Free memory was 187.3MB in the beginning and 181.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 65476.65ms. Allocated memory was 284.2MB in the beginning and 547.4MB in the end (delta: 263.2MB). Free memory was 180.4MB in the beginning and 197.1MB in the end (delta: -16.7MB). Peak memory consumption was 247.7MB. 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 FALSE !(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=1, UNLOADED=0, WaitMode=0, WaitReason=0] [L1096] return (-1073741823); 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=-1073741823, 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=1, 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)=-1073741823, 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 29 procedures, 390 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.3s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 53.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35918 SdHoareTripleChecker+Valid, 44.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35451 mSDsluCounter, 62343 SdHoareTripleChecker+Invalid, 37.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39320 mSDsCounter, 10920 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81710 IncrementalHoareTripleChecker+Invalid, 92630 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10920 mSolverCounterUnsat, 23023 mSDtfsCounter, 81710 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1176 GetRequests, 476 SyntacticMatches, 7 SemanticMatches, 693 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=19, InterpolantAutomatonStates: 615, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 53 MinimizatonAttempts, 2733 StatesRemovedByMinimization, 53 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 3004 NumberOfCodeBlocks, 3004 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2866 ConstructedInterpolants, 0 QuantifiedInterpolants, 14498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 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! [2022-03-17 23:16:06,492 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...