/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:02:15,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:02:15,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:02:15,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:02:15,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:02:15,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:02:15,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:02:15,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:02:15,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:02:15,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:02:15,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:02:15,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:02:15,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:02:15,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:02:15,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:02:15,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:02:15,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:02:15,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:02:15,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:02:15,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:02:15,820 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:02:15,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:02:15,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:02:15,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:02:15,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:02:15,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-18 21:02:15,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:02:15,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:02:15,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:02:15,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:02:15,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:02:15,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:02:15,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:02:15,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:02:15,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:02:15,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:02:15,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:02:15,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:02:15,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:02:15,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:02:15,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:02:15,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:02:15,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:02:15,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:02:15,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:02:15,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:02:15,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:02:15,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:02:15,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:02:15,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:02:15,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:02:15,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:02:15,866 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:02:16,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:02:16,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:02:16,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:02:16,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:02:16,080 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:02:16,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-03-18 21:02:16,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254d86766/103c46b3aa844bfa9e4318f5d1221bdb/FLAG3b8aa620b [2022-03-18 21:02:16,536 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:02:16,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-03-18 21:02:16,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254d86766/103c46b3aa844bfa9e4318f5d1221bdb/FLAG3b8aa620b [2022-03-18 21:02:16,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254d86766/103c46b3aa844bfa9e4318f5d1221bdb [2022-03-18 21:02:16,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:02:16,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:02:16,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:02:16,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:02:16,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:02:16,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:02:16" (1/1) ... [2022-03-18 21:02:16,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:16, skipping insertion in model container [2022-03-18 21:02:16,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:02:16" (1/1) ... [2022-03-18 21:02:16,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:02:17,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:02:17,352 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] [2022-03-18 21:02:17,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:02:17,367 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:02:17,467 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] [2022-03-18 21:02:17,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:02:17,481 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:02:17,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17 WrapperNode [2022-03-18 21:02:17,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:02:17,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:02:17,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:02:17,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:02:17,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:02:17,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:02:17,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:02:17,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:02:17,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (1/1) ... [2022-03-18 21:02:17,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:02:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:02:17,632 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) [2022-03-18 21:02:17,643 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 [2022-03-18 21:02:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:02:17,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2022-03-18 21:02:17,677 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2022-03-18 21:02:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-03-18 21:02:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-03-18 21:02:17,678 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-03-18 21:02:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-18 21:02:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:02:17,679 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-03-18 21:02:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-03-18 21:02:17,681 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-03-18 21:02:17,682 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-03-18 21:02:17,683 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-18 21:02:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:02:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:02:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:02:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-03-18 21:02:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-18 21:02:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:02:17,686 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:02:17,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:02:17,922 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:02:17,924 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:02:17,940 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:17,969 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:17,969 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:17,977 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:17,983 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:17,983 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:17,986 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,100 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-03-18 21:02:18,101 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-03-18 21:02:18,102 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,186 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-03-18 21:02:18,186 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-03-18 21:02:18,197 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,215 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-18 21:02:18,216 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-18 21:02:18,298 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,309 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,309 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,309 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,314 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,314 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,314 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,324 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,325 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,359 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,377 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-03-18 21:02:18,378 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-03-18 21:02:18,380 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,485 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-03-18 21:02:18,485 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-03-18 21:02:18,516 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,520 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,520 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,520 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,524 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,525 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:02:18,528 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-18 21:02:18,528 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-18 21:02:18,537 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:02:18,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:02:18,547 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:02:18,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:02:18 BoogieIcfgContainer [2022-03-18 21:02:18,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:02:18,550 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:02:18,550 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:02:18,551 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:02:18,554 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:02:18" (1/1) ... [2022-03-18 21:02:18,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:02:18 BasicIcfg [2022-03-18 21:02:18,592 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:02:18,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:02:18,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:02:18,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:02:18,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:02:16" (1/4) ... [2022-03-18 21:02:18,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6301aaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:02:18, skipping insertion in model container [2022-03-18 21:02:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:02:17" (2/4) ... [2022-03-18 21:02:18,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6301aaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:02:18, skipping insertion in model container [2022-03-18 21:02:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:02:18" (3/4) ... [2022-03-18 21:02:18,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6301aaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:02:18, skipping insertion in model container [2022-03-18 21:02:18,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:02:18" (4/4) ... [2022-03-18 21:02:18,602 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.cJordan [2022-03-18 21:02:18,609 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:02:18,613 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:02:18,648 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:02:18,654 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 21:02:18,654 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:02:18,674 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) [2022-03-18 21:02:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-18 21:02:18,682 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:18,682 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] [2022-03-18 21:02:18,683 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:18,700 INFO L85 PathProgramCache]: Analyzing trace with hash -408635812, now seen corresponding path program 1 times [2022-03-18 21:02:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:18,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14994173] [2022-03-18 21:02:18,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:18,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:19,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:19,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:19,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:19,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14994173] [2022-03-18 21:02:19,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14994173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:19,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:19,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:02:19,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570708848] [2022-03-18 21:02:19,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:19,103 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:02:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:02:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:02:19,127 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) [2022-03-18 21:02:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:20,245 INFO L93 Difference]: Finished difference Result 430 states and 602 transitions. [2022-03-18 21:02:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:02:20,247 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 [2022-03-18 21:02:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:20,259 INFO L225 Difference]: With dead ends: 430 [2022-03-18 21:02:20,259 INFO L226 Difference]: Without dead ends: 424 [2022-03-18 21:02:20,261 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 [2022-03-18 21:02:20,263 INFO L912 BasicCegarLoop]: 496 mSDtfsCounter, 408 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:20,264 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 735 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-18 21:02:20,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2022-03-18 21:02:20,331 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) [2022-03-18 21:02:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2022-03-18 21:02:20,334 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2022-03-18 21:02:20,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:20,335 INFO L478 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2022-03-18 21:02:20,335 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) [2022-03-18 21:02:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2022-03-18 21:02:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-18 21:02:20,337 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:20,337 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] [2022-03-18 21:02:20,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:02:20,337 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:20,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1414681826, now seen corresponding path program 1 times [2022-03-18 21:02:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:20,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872249372] [2022-03-18 21:02:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:20,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:20,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:20,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:20,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872249372] [2022-03-18 21:02:20,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872249372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:20,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:20,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:02:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921362594] [2022-03-18 21:02:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:20,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:02:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:20,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:02:20,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:02:20,506 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) [2022-03-18 21:02:21,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:21,911 INFO L93 Difference]: Finished difference Result 589 states and 804 transitions. [2022-03-18 21:02:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:02:21,912 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 [2022-03-18 21:02:21,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:21,916 INFO L225 Difference]: With dead ends: 589 [2022-03-18 21:02:21,916 INFO L226 Difference]: Without dead ends: 588 [2022-03-18 21:02:21,916 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:21,918 INFO L912 BasicCegarLoop]: 640 mSDtfsCounter, 720 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:21,918 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 903 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-18 21:02:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-18 21:02:21,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 527. [2022-03-18 21:02:21,950 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) [2022-03-18 21:02:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 719 transitions. [2022-03-18 21:02:21,954 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 719 transitions. Word has length 25 [2022-03-18 21:02:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:21,954 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 719 transitions. [2022-03-18 21:02:21,954 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) [2022-03-18 21:02:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 719 transitions. [2022-03-18 21:02:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-18 21:02:21,955 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:21,956 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] [2022-03-18 21:02:21,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:02:21,956 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash -767012771, now seen corresponding path program 1 times [2022-03-18 21:02:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:21,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226974801] [2022-03-18 21:02:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:22,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226974801] [2022-03-18 21:02:22,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226974801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:22,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:22,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:02:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016265109] [2022-03-18 21:02:22,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:22,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:02:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:22,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:02:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:02:22,132 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) [2022-03-18 21:02:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:22,951 INFO L93 Difference]: Finished difference Result 678 states and 909 transitions. [2022-03-18 21:02:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:02:22,958 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 [2022-03-18 21:02:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:22,965 INFO L225 Difference]: With dead ends: 678 [2022-03-18 21:02:22,965 INFO L226 Difference]: Without dead ends: 678 [2022-03-18 21:02:22,966 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 [2022-03-18 21:02:22,972 INFO L912 BasicCegarLoop]: 462 mSDtfsCounter, 946 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:22,972 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 609 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-18 21:02:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-03-18 21:02:23,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2022-03-18 21:02:23,004 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) [2022-03-18 21:02:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 802 transitions. [2022-03-18 21:02:23,007 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 802 transitions. Word has length 31 [2022-03-18 21:02:23,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:23,008 INFO L478 AbstractCegarLoop]: Abstraction has 591 states and 802 transitions. [2022-03-18 21:02:23,008 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) [2022-03-18 21:02:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 802 transitions. [2022-03-18 21:02:23,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-18 21:02:23,009 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:23,009 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] [2022-03-18 21:02:23,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:02:23,010 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:23,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1058216949, now seen corresponding path program 1 times [2022-03-18 21:02:23,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:23,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179898722] [2022-03-18 21:02:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:23,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:23,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179898722] [2022-03-18 21:02:23,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179898722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:23,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:23,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:02:23,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259619349] [2022-03-18 21:02:23,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:23,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:02:23,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:02:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:02:23,166 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) [2022-03-18 21:02:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:24,172 INFO L93 Difference]: Finished difference Result 827 states and 1114 transitions. [2022-03-18 21:02:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:02:24,173 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 [2022-03-18 21:02:24,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:24,177 INFO L225 Difference]: With dead ends: 827 [2022-03-18 21:02:24,177 INFO L226 Difference]: Without dead ends: 827 [2022-03-18 21:02:24,177 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:24,178 INFO L912 BasicCegarLoop]: 544 mSDtfsCounter, 835 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:24,178 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 766 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-03-18 21:02:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 779. [2022-03-18 21:02:24,220 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) [2022-03-18 21:02:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2022-03-18 21:02:24,229 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 33 [2022-03-18 21:02:24,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:24,229 INFO L478 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2022-03-18 21:02:24,229 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) [2022-03-18 21:02:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2022-03-18 21:02:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-18 21:02:24,238 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:24,238 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] [2022-03-18 21:02:24,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:02:24,238 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:24,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1620352693, now seen corresponding path program 1 times [2022-03-18 21:02:24,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:24,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507880883] [2022-03-18 21:02:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:24,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-18 21:02:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:24,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507880883] [2022-03-18 21:02:24,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507880883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:24,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:24,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:24,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817402486] [2022-03-18 21:02:24,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:24,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:24,407 INFO L87 Difference]: Start difference. First operand 779 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 21:02:25,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:25,265 INFO L93 Difference]: Finished difference Result 876 states and 1180 transitions. [2022-03-18 21:02:25,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:25,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2022-03-18 21:02:25,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:25,270 INFO L225 Difference]: With dead ends: 876 [2022-03-18 21:02:25,270 INFO L226 Difference]: Without dead ends: 876 [2022-03-18 21:02:25,270 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:25,271 INFO L912 BasicCegarLoop]: 482 mSDtfsCounter, 1152 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:25,272 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 820 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:02:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-03-18 21:02:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 822. [2022-03-18 21:02:25,290 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) [2022-03-18 21:02:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1111 transitions. [2022-03-18 21:02:25,294 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1111 transitions. Word has length 39 [2022-03-18 21:02:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:25,295 INFO L478 AbstractCegarLoop]: Abstraction has 822 states and 1111 transitions. [2022-03-18 21:02:25,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 21:02:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1111 transitions. [2022-03-18 21:02:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-18 21:02:25,300 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:25,300 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] [2022-03-18 21:02:25,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:02:25,300 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:25,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1439135067, now seen corresponding path program 1 times [2022-03-18 21:02:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035676853] [2022-03-18 21:02:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:25,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035676853] [2022-03-18 21:02:25,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035676853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:25,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:25,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:02:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10484866] [2022-03-18 21:02:25,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:25,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:02:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:25,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:02:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:02:25,469 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) [2022-03-18 21:02:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:26,467 INFO L93 Difference]: Finished difference Result 853 states and 1149 transitions. [2022-03-18 21:02:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:02:26,468 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 [2022-03-18 21:02:26,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:26,472 INFO L225 Difference]: With dead ends: 853 [2022-03-18 21:02:26,472 INFO L226 Difference]: Without dead ends: 853 [2022-03-18 21:02:26,472 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 [2022-03-18 21:02:26,473 INFO L912 BasicCegarLoop]: 470 mSDtfsCounter, 320 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:26,473 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 727 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-18 21:02:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 833. [2022-03-18 21:02:26,489 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) [2022-03-18 21:02:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1125 transitions. [2022-03-18 21:02:26,493 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1125 transitions. Word has length 38 [2022-03-18 21:02:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:26,493 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1125 transitions. [2022-03-18 21:02:26,493 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) [2022-03-18 21:02:26,493 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1125 transitions. [2022-03-18 21:02:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-18 21:02:26,494 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:26,494 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] [2022-03-18 21:02:26,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:02:26,495 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:26,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:26,495 INFO L85 PathProgramCache]: Analyzing trace with hash -859582263, now seen corresponding path program 1 times [2022-03-18 21:02:26,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:26,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492144834] [2022-03-18 21:02:26,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:26,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-18 21:02:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:26,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:26,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492144834] [2022-03-18 21:02:26,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492144834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:26,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:26,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:02:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304844370] [2022-03-18 21:02:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:26,739 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:02:26,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:02:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:02:26,740 INFO L87 Difference]: Start difference. First operand 833 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-18 21:02:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:28,224 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2022-03-18 21:02:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:02:28,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-03-18 21:02:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:28,228 INFO L225 Difference]: With dead ends: 887 [2022-03-18 21:02:28,229 INFO L226 Difference]: Without dead ends: 887 [2022-03-18 21:02:28,229 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 [2022-03-18 21:02:28,230 INFO L912 BasicCegarLoop]: 461 mSDtfsCounter, 1713 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:28,230 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 945 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 21:02:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-18 21:02:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-03-18 21:02:28,247 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) [2022-03-18 21:02:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1123 transitions. [2022-03-18 21:02:28,250 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1123 transitions. Word has length 39 [2022-03-18 21:02:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:28,251 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1123 transitions. [2022-03-18 21:02:28,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-18 21:02:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1123 transitions. [2022-03-18 21:02:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-18 21:02:28,252 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:28,252 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] [2022-03-18 21:02:28,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:02:28,252 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:28,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1831552671, now seen corresponding path program 1 times [2022-03-18 21:02:28,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:28,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282583797] [2022-03-18 21:02:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-18 21:02:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:28,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:28,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282583797] [2022-03-18 21:02:28,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282583797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:28,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:28,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:02:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382880687] [2022-03-18 21:02:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:28,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:02:28,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:28,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:02:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:02:28,497 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) [2022-03-18 21:02:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:29,920 INFO L93 Difference]: Finished difference Result 887 states and 1190 transitions. [2022-03-18 21:02:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:02:29,920 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 [2022-03-18 21:02:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:29,924 INFO L225 Difference]: With dead ends: 887 [2022-03-18 21:02:29,924 INFO L226 Difference]: Without dead ends: 887 [2022-03-18 21:02:29,924 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 [2022-03-18 21:02:29,925 INFO L912 BasicCegarLoop]: 462 mSDtfsCounter, 1068 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:29,925 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 967 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:02:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-18 21:02:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-03-18 21:02:29,941 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) [2022-03-18 21:02:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1121 transitions. [2022-03-18 21:02:29,944 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1121 transitions. Word has length 40 [2022-03-18 21:02:29,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:29,944 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1121 transitions. [2022-03-18 21:02:29,945 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) [2022-03-18 21:02:29,945 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1121 transitions. [2022-03-18 21:02:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-18 21:02:29,946 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:29,946 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] [2022-03-18 21:02:29,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:02:29,946 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1640201888, now seen corresponding path program 1 times [2022-03-18 21:02:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:29,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151371523] [2022-03-18 21:02:29,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-18 21:02:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:30,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:30,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151371523] [2022-03-18 21:02:30,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151371523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:30,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:30,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569167800] [2022-03-18 21:02:30,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:30,107 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:30,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:30,108 INFO L87 Difference]: Start difference. First operand 833 states and 1121 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 21:02:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:31,060 INFO L93 Difference]: Finished difference Result 893 states and 1196 transitions. [2022-03-18 21:02:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:02:31,061 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 [2022-03-18 21:02:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:31,064 INFO L225 Difference]: With dead ends: 893 [2022-03-18 21:02:31,064 INFO L226 Difference]: Without dead ends: 881 [2022-03-18 21:02:31,065 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 [2022-03-18 21:02:31,065 INFO L912 BasicCegarLoop]: 482 mSDtfsCounter, 798 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:31,065 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 1250 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-03-18 21:02:31,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 831. [2022-03-18 21:02:31,081 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) [2022-03-18 21:02:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1117 transitions. [2022-03-18 21:02:31,084 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1117 transitions. Word has length 41 [2022-03-18 21:02:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:31,084 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1117 transitions. [2022-03-18 21:02:31,084 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) [2022-03-18 21:02:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1117 transitions. [2022-03-18 21:02:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-18 21:02:31,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:31,085 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] [2022-03-18 21:02:31,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:02:31,086 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:31,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash 802238392, now seen corresponding path program 1 times [2022-03-18 21:02:31,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:31,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21396646] [2022-03-18 21:02:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:31,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-18 21:02:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:31,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:31,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21396646] [2022-03-18 21:02:31,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21396646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:31,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:31,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:31,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561794206] [2022-03-18 21:02:31,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:31,259 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:31,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:31,260 INFO L87 Difference]: Start difference. First operand 831 states and 1117 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-18 21:02:32,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:32,210 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2022-03-18 21:02:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:02:32,210 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 [2022-03-18 21:02:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:32,214 INFO L225 Difference]: With dead ends: 891 [2022-03-18 21:02:32,214 INFO L226 Difference]: Without dead ends: 874 [2022-03-18 21:02:32,214 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 [2022-03-18 21:02:32,215 INFO L912 BasicCegarLoop]: 478 mSDtfsCounter, 579 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:32,215 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1297 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:32,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-03-18 21:02:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 824. [2022-03-18 21:02:32,230 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) [2022-03-18 21:02:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1108 transitions. [2022-03-18 21:02:32,233 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1108 transitions. Word has length 42 [2022-03-18 21:02:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:32,233 INFO L478 AbstractCegarLoop]: Abstraction has 824 states and 1108 transitions. [2022-03-18 21:02:32,233 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) [2022-03-18 21:02:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1108 transitions. [2022-03-18 21:02:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-18 21:02:32,234 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:32,234 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] [2022-03-18 21:02:32,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:02:32,235 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:32,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2062631413, now seen corresponding path program 1 times [2022-03-18 21:02:32,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:32,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049445172] [2022-03-18 21:02:32,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:32,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:32,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:32,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:32,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:32,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049445172] [2022-03-18 21:02:32,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049445172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:32,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:32,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498852075] [2022-03-18 21:02:32,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:32,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:32,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:32,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:32,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:32,421 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) [2022-03-18 21:02:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:33,355 INFO L93 Difference]: Finished difference Result 849 states and 1137 transitions. [2022-03-18 21:02:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:33,355 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 [2022-03-18 21:02:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:33,358 INFO L225 Difference]: With dead ends: 849 [2022-03-18 21:02:33,358 INFO L226 Difference]: Without dead ends: 849 [2022-03-18 21:02:33,359 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 [2022-03-18 21:02:33,359 INFO L912 BasicCegarLoop]: 459 mSDtfsCounter, 766 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:33,360 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 1003 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:02:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-03-18 21:02:33,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 826. [2022-03-18 21:02:33,374 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) [2022-03-18 21:02:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1110 transitions. [2022-03-18 21:02:33,377 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1110 transitions. Word has length 42 [2022-03-18 21:02:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:33,377 INFO L478 AbstractCegarLoop]: Abstraction has 826 states and 1110 transitions. [2022-03-18 21:02:33,377 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) [2022-03-18 21:02:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1110 transitions. [2022-03-18 21:02:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-18 21:02:33,378 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:33,378 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] [2022-03-18 21:02:33,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:02:33,378 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:33,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1257309958, now seen corresponding path program 1 times [2022-03-18 21:02:33,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:33,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127107566] [2022-03-18 21:02:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-18 21:02:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:33,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:33,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127107566] [2022-03-18 21:02:33,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127107566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:33,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:33,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-18 21:02:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722701004] [2022-03-18 21:02:33,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:33,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-18 21:02:33,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:33,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-18 21:02:33,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-18 21:02:33,541 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) [2022-03-18 21:02:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:34,685 INFO L93 Difference]: Finished difference Result 854 states and 1143 transitions. [2022-03-18 21:02:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:34,685 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 [2022-03-18 21:02:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:34,689 INFO L225 Difference]: With dead ends: 854 [2022-03-18 21:02:34,689 INFO L226 Difference]: Without dead ends: 854 [2022-03-18 21:02:34,689 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:02:34,690 INFO L912 BasicCegarLoop]: 435 mSDtfsCounter, 468 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:34,690 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 946 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-03-18 21:02:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 830. [2022-03-18 21:02:34,709 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) [2022-03-18 21:02:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-03-18 21:02:34,711 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 44 [2022-03-18 21:02:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:34,712 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-03-18 21:02:34,712 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) [2022-03-18 21:02:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-03-18 21:02:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-18 21:02:34,713 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:34,713 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] [2022-03-18 21:02:34,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:02:34,714 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash 319855895, now seen corresponding path program 1 times [2022-03-18 21:02:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:34,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442802714] [2022-03-18 21:02:34,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:34,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:34,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:34,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442802714] [2022-03-18 21:02:34,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442802714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:34,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:34,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:34,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780878194] [2022-03-18 21:02:34,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:34,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:34,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:34,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:34,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:34,868 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) [2022-03-18 21:02:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:35,946 INFO L93 Difference]: Finished difference Result 852 states and 1140 transitions. [2022-03-18 21:02:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 21:02:35,946 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 [2022-03-18 21:02:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:35,949 INFO L225 Difference]: With dead ends: 852 [2022-03-18 21:02:35,949 INFO L226 Difference]: Without dead ends: 852 [2022-03-18 21:02:35,950 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 [2022-03-18 21:02:35,950 INFO L912 BasicCegarLoop]: 464 mSDtfsCounter, 383 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:35,950 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1041 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:35,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-03-18 21:02:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 830. [2022-03-18 21:02:35,965 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) [2022-03-18 21:02:35,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-03-18 21:02:35,968 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 43 [2022-03-18 21:02:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:35,968 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-03-18 21:02:35,968 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) [2022-03-18 21:02:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-03-18 21:02:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-18 21:02:35,970 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:35,970 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] [2022-03-18 21:02:35,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:02:35,970 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:35,970 INFO L85 PathProgramCache]: Analyzing trace with hash -368503493, now seen corresponding path program 1 times [2022-03-18 21:02:35,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:35,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317055924] [2022-03-18 21:02:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:35,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 21:02:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:36,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:36,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317055924] [2022-03-18 21:02:36,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317055924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:36,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:36,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169624568] [2022-03-18 21:02:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:36,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:36,139 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) [2022-03-18 21:02:37,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:37,023 INFO L93 Difference]: Finished difference Result 872 states and 1165 transitions. [2022-03-18 21:02:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:37,023 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 [2022-03-18 21:02:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:37,026 INFO L225 Difference]: With dead ends: 872 [2022-03-18 21:02:37,026 INFO L226 Difference]: Without dead ends: 857 [2022-03-18 21:02:37,026 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 [2022-03-18 21:02:37,027 INFO L912 BasicCegarLoop]: 460 mSDtfsCounter, 1004 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:37,027 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 1219 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:02:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-03-18 21:02:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 828. [2022-03-18 21:02:37,042 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) [2022-03-18 21:02:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1111 transitions. [2022-03-18 21:02:37,045 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1111 transitions. Word has length 45 [2022-03-18 21:02:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:37,045 INFO L478 AbstractCegarLoop]: Abstraction has 828 states and 1111 transitions. [2022-03-18 21:02:37,045 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) [2022-03-18 21:02:37,045 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1111 transitions. [2022-03-18 21:02:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-18 21:02:37,046 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:37,046 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] [2022-03-18 21:02:37,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:02:37,047 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:37,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1762098405, now seen corresponding path program 1 times [2022-03-18 21:02:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:37,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273593878] [2022-03-18 21:02:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 21:02:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:37,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:37,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273593878] [2022-03-18 21:02:37,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273593878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:37,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:37,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:37,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668869980] [2022-03-18 21:02:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:37,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:37,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:37,209 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) [2022-03-18 21:02:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:38,178 INFO L93 Difference]: Finished difference Result 857 states and 1140 transitions. [2022-03-18 21:02:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:02:38,178 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 [2022-03-18 21:02:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:38,180 INFO L225 Difference]: With dead ends: 857 [2022-03-18 21:02:38,180 INFO L226 Difference]: Without dead ends: 836 [2022-03-18 21:02:38,181 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 [2022-03-18 21:02:38,181 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, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:38,181 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 904 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-03-18 21:02:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 806. [2022-03-18 21:02:38,196 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) [2022-03-18 21:02:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1079 transitions. [2022-03-18 21:02:38,198 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1079 transitions. Word has length 46 [2022-03-18 21:02:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:38,199 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1079 transitions. [2022-03-18 21:02:38,199 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) [2022-03-18 21:02:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1079 transitions. [2022-03-18 21:02:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-18 21:02:38,200 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:38,200 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] [2022-03-18 21:02:38,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:02:38,200 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:38,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash -569320266, now seen corresponding path program 1 times [2022-03-18 21:02:38,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:38,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191644824] [2022-03-18 21:02:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:38,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-18 21:02:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:38,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:38,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191644824] [2022-03-18 21:02:38,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191644824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:38,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:38,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:02:38,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212861634] [2022-03-18 21:02:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:38,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:02:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:02:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:02:38,331 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) [2022-03-18 21:02:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:39,514 INFO L93 Difference]: Finished difference Result 1162 states and 1566 transitions. [2022-03-18 21:02:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:39,514 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 [2022-03-18 21:02:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:39,518 INFO L225 Difference]: With dead ends: 1162 [2022-03-18 21:02:39,518 INFO L226 Difference]: Without dead ends: 1162 [2022-03-18 21:02:39,519 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:39,519 INFO L912 BasicCegarLoop]: 538 mSDtfsCounter, 496 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:39,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 774 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:02:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-03-18 21:02:39,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 919. [2022-03-18 21:02:39,536 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) [2022-03-18 21:02:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1233 transitions. [2022-03-18 21:02:39,539 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1233 transitions. Word has length 47 [2022-03-18 21:02:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:39,539 INFO L478 AbstractCegarLoop]: Abstraction has 919 states and 1233 transitions. [2022-03-18 21:02:39,540 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) [2022-03-18 21:02:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1233 transitions. [2022-03-18 21:02:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-18 21:02:39,541 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:39,541 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] [2022-03-18 21:02:39,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:02:39,541 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:39,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:39,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1287446407, now seen corresponding path program 1 times [2022-03-18 21:02:39,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:39,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670312573] [2022-03-18 21:02:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:39,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:02:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-18 21:02:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:39,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:39,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670312573] [2022-03-18 21:02:39,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670312573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:39,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:39,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124098619] [2022-03-18 21:02:39,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:39,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:39,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:39,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:39,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:39,726 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) [2022-03-18 21:02:40,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:40,866 INFO L93 Difference]: Finished difference Result 961 states and 1283 transitions. [2022-03-18 21:02:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:02:40,866 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 [2022-03-18 21:02:40,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:40,870 INFO L225 Difference]: With dead ends: 961 [2022-03-18 21:02:40,870 INFO L226 Difference]: Without dead ends: 946 [2022-03-18 21:02:40,870 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 [2022-03-18 21:02:40,871 INFO L912 BasicCegarLoop]: 453 mSDtfsCounter, 256 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:40,871 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1307 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:02:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-03-18 21:02:40,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 917. [2022-03-18 21:02:40,886 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) [2022-03-18 21:02:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1229 transitions. [2022-03-18 21:02:40,888 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1229 transitions. Word has length 47 [2022-03-18 21:02:40,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:40,888 INFO L478 AbstractCegarLoop]: Abstraction has 917 states and 1229 transitions. [2022-03-18 21:02:40,888 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) [2022-03-18 21:02:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1229 transitions. [2022-03-18 21:02:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-18 21:02:40,890 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:40,890 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] [2022-03-18 21:02:40,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:02:40,890 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:40,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash -500504501, now seen corresponding path program 1 times [2022-03-18 21:02:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:40,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159033834] [2022-03-18 21:02:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-03-18 21:02:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:41,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:41,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159033834] [2022-03-18 21:02:41,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159033834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:41,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:41,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:41,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95674432] [2022-03-18 21:02:41,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:41,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:41,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:41,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:41,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:41,106 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) [2022-03-18 21:02:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:42,447 INFO L93 Difference]: Finished difference Result 967 states and 1275 transitions. [2022-03-18 21:02:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:02:42,447 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 [2022-03-18 21:02:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:42,450 INFO L225 Difference]: With dead ends: 967 [2022-03-18 21:02:42,450 INFO L226 Difference]: Without dead ends: 967 [2022-03-18 21:02:42,451 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 [2022-03-18 21:02:42,451 INFO L912 BasicCegarLoop]: 559 mSDtfsCounter, 1716 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:42,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 845 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:42,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-03-18 21:02:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 908. [2022-03-18 21:02:42,471 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) [2022-03-18 21:02:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1208 transitions. [2022-03-18 21:02:42,473 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1208 transitions. Word has length 48 [2022-03-18 21:02:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:42,474 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1208 transitions. [2022-03-18 21:02:42,474 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) [2022-03-18 21:02:42,474 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1208 transitions. [2022-03-18 21:02:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:02:42,475 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:42,475 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] [2022-03-18 21:02:42,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:02:42,475 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:42,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash 336138752, now seen corresponding path program 1 times [2022-03-18 21:02:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:42,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011587064] [2022-03-18 21:02:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:42,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011587064] [2022-03-18 21:02:42,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011587064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:42,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:42,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:02:42,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996719337] [2022-03-18 21:02:42,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:42,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:02:42,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:42,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:02:42,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:02:42,663 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) [2022-03-18 21:02:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:44,405 INFO L93 Difference]: Finished difference Result 1106 states and 1470 transitions. [2022-03-18 21:02:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-18 21:02:44,405 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 [2022-03-18 21:02:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:44,408 INFO L225 Difference]: With dead ends: 1106 [2022-03-18 21:02:44,409 INFO L226 Difference]: Without dead ends: 1106 [2022-03-18 21:02:44,409 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-03-18 21:02:44,409 INFO L912 BasicCegarLoop]: 542 mSDtfsCounter, 1407 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:44,410 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 1436 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-18 21:02:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-18 21:02:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 963. [2022-03-18 21:02:44,426 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) [2022-03-18 21:02:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1281 transitions. [2022-03-18 21:02:44,428 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1281 transitions. Word has length 50 [2022-03-18 21:02:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:44,428 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1281 transitions. [2022-03-18 21:02:44,428 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) [2022-03-18 21:02:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1281 transitions. [2022-03-18 21:02:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:02:44,429 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:44,429 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] [2022-03-18 21:02:44,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:02:44,430 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:44,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:44,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1890537656, now seen corresponding path program 1 times [2022-03-18 21:02:44,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:44,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031905029] [2022-03-18 21:02:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:44,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-18 21:02:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:44,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031905029] [2022-03-18 21:02:44,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031905029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:44,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:44,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-18 21:02:44,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343952362] [2022-03-18 21:02:44,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:44,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-18 21:02:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-18 21:02:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:02:44,610 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) [2022-03-18 21:02:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:45,729 INFO L93 Difference]: Finished difference Result 1007 states and 1331 transitions. [2022-03-18 21:02:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:02:45,729 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 [2022-03-18 21:02:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:45,733 INFO L225 Difference]: With dead ends: 1007 [2022-03-18 21:02:45,733 INFO L226 Difference]: Without dead ends: 990 [2022-03-18 21:02:45,733 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 [2022-03-18 21:02:45,734 INFO L912 BasicCegarLoop]: 457 mSDtfsCounter, 777 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:45,734 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 1552 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:45,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-03-18 21:02:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 963. [2022-03-18 21:02:45,749 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) [2022-03-18 21:02:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1269 transitions. [2022-03-18 21:02:45,751 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1269 transitions. Word has length 50 [2022-03-18 21:02:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:45,752 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1269 transitions. [2022-03-18 21:02:45,752 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) [2022-03-18 21:02:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1269 transitions. [2022-03-18 21:02:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 21:02:45,753 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:45,753 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] [2022-03-18 21:02:45,753 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:02:45,753 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 570524352, now seen corresponding path program 1 times [2022-03-18 21:02:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:45,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179133487] [2022-03-18 21:02:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:45,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-18 21:02:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:45,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:45,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179133487] [2022-03-18 21:02:45,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179133487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:45,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:45,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952820010] [2022-03-18 21:02:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:45,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:45,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:45,895 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) [2022-03-18 21:02:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:46,688 INFO L93 Difference]: Finished difference Result 716 states and 907 transitions. [2022-03-18 21:02:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:02:46,689 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 [2022-03-18 21:02:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:46,691 INFO L225 Difference]: With dead ends: 716 [2022-03-18 21:02:46,691 INFO L226 Difference]: Without dead ends: 716 [2022-03-18 21:02:46,691 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 [2022-03-18 21:02:46,692 INFO L912 BasicCegarLoop]: 473 mSDtfsCounter, 918 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:46,692 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 821 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-18 21:02:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-03-18 21:02:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 654. [2022-03-18 21:02:46,701 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) [2022-03-18 21:02:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2022-03-18 21:02:46,703 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 52 [2022-03-18 21:02:46,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:46,703 INFO L478 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2022-03-18 21:02:46,703 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) [2022-03-18 21:02:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2022-03-18 21:02:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 21:02:46,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:46,705 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] [2022-03-18 21:02:46,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:02:46,705 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:46,706 INFO L85 PathProgramCache]: Analyzing trace with hash 473481812, now seen corresponding path program 1 times [2022-03-18 21:02:46,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:46,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432879393] [2022-03-18 21:02:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:46,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:02:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:46,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:46,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432879393] [2022-03-18 21:02:46,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432879393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:46,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:46,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-18 21:02:46,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662983313] [2022-03-18 21:02:46,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:46,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-18 21:02:46,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:46,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-18 21:02:46,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:02:46,879 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) [2022-03-18 21:02:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:47,897 INFO L93 Difference]: Finished difference Result 701 states and 883 transitions. [2022-03-18 21:02:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:02:47,899 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 [2022-03-18 21:02:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:47,901 INFO L225 Difference]: With dead ends: 701 [2022-03-18 21:02:47,901 INFO L226 Difference]: Without dead ends: 676 [2022-03-18 21:02:47,901 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 [2022-03-18 21:02:47,902 INFO L912 BasicCegarLoop]: 444 mSDtfsCounter, 590 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:47,902 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 1523 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:47,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-03-18 21:02:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 644. [2022-03-18 21:02:47,911 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) [2022-03-18 21:02:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 814 transitions. [2022-03-18 21:02:47,912 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 814 transitions. Word has length 51 [2022-03-18 21:02:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:47,912 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 814 transitions. [2022-03-18 21:02:47,913 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) [2022-03-18 21:02:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 814 transitions. [2022-03-18 21:02:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 21:02:47,914 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:47,914 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] [2022-03-18 21:02:47,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:02:47,914 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:47,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:47,914 INFO L85 PathProgramCache]: Analyzing trace with hash -138518503, now seen corresponding path program 1 times [2022-03-18 21:02:47,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:47,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102826372] [2022-03-18 21:02:47,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:48,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:02:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:48,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:48,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102826372] [2022-03-18 21:02:48,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102826372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:48,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:48,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-18 21:02:48,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876595976] [2022-03-18 21:02:48,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:48,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-18 21:02:48,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:48,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-18 21:02:48,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:02:48,084 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) [2022-03-18 21:02:49,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:49,188 INFO L93 Difference]: Finished difference Result 678 states and 855 transitions. [2022-03-18 21:02:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 21:02:49,188 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 [2022-03-18 21:02:49,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:49,190 INFO L225 Difference]: With dead ends: 678 [2022-03-18 21:02:49,190 INFO L226 Difference]: Without dead ends: 678 [2022-03-18 21:02:49,190 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 [2022-03-18 21:02:49,190 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 724 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:49,191 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1027 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-03-18 21:02:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 647. [2022-03-18 21:02:49,199 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) [2022-03-18 21:02:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 817 transitions. [2022-03-18 21:02:49,200 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 817 transitions. Word has length 51 [2022-03-18 21:02:49,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:49,201 INFO L478 AbstractCegarLoop]: Abstraction has 647 states and 817 transitions. [2022-03-18 21:02:49,201 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) [2022-03-18 21:02:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 817 transitions. [2022-03-18 21:02:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 21:02:49,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:49,202 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] [2022-03-18 21:02:49,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:02:49,202 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1703742909, now seen corresponding path program 1 times [2022-03-18 21:02:49,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:49,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080786821] [2022-03-18 21:02:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:49,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:49,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080786821] [2022-03-18 21:02:49,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080786821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:49,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:49,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:49,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183759779] [2022-03-18 21:02:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:49,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:49,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:49,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:49,396 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) [2022-03-18 21:02:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:50,377 INFO L93 Difference]: Finished difference Result 708 states and 902 transitions. [2022-03-18 21:02:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:02:50,377 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 [2022-03-18 21:02:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:50,379 INFO L225 Difference]: With dead ends: 708 [2022-03-18 21:02:50,379 INFO L226 Difference]: Without dead ends: 707 [2022-03-18 21:02:50,379 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-03-18 21:02:50,380 INFO L912 BasicCegarLoop]: 401 mSDtfsCounter, 897 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:50,380 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 897 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:02:50,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-03-18 21:02:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 658. [2022-03-18 21:02:50,390 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) [2022-03-18 21:02:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 833 transitions. [2022-03-18 21:02:50,391 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 833 transitions. Word has length 52 [2022-03-18 21:02:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:50,391 INFO L478 AbstractCegarLoop]: Abstraction has 658 states and 833 transitions. [2022-03-18 21:02:50,391 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) [2022-03-18 21:02:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 833 transitions. [2022-03-18 21:02:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 21:02:50,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:50,393 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] [2022-03-18 21:02:50,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:02:50,393 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:50,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash -350433212, now seen corresponding path program 1 times [2022-03-18 21:02:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286061768] [2022-03-18 21:02:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:50,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:50,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:50,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286061768] [2022-03-18 21:02:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286061768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:50,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-18 21:02:50,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756870123] [2022-03-18 21:02:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:50,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 21:02:50,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:50,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 21:02:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:02:50,592 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) [2022-03-18 21:02:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:51,960 INFO L93 Difference]: Finished difference Result 701 states and 882 transitions. [2022-03-18 21:02:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-18 21:02:51,961 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 [2022-03-18 21:02:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:51,963 INFO L225 Difference]: With dead ends: 701 [2022-03-18 21:02:51,963 INFO L226 Difference]: Without dead ends: 701 [2022-03-18 21:02:51,963 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-03-18 21:02:51,964 INFO L912 BasicCegarLoop]: 403 mSDtfsCounter, 928 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:51,964 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 1123 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-03-18 21:02:51,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 651. [2022-03-18 21:02:51,972 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) [2022-03-18 21:02:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 822 transitions. [2022-03-18 21:02:51,974 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 822 transitions. Word has length 52 [2022-03-18 21:02:51,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:51,974 INFO L478 AbstractCegarLoop]: Abstraction has 651 states and 822 transitions. [2022-03-18 21:02:51,974 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) [2022-03-18 21:02:51,974 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 822 transitions. [2022-03-18 21:02:51,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 21:02:51,975 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:51,976 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] [2022-03-18 21:02:51,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:02:51,976 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:51,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash 5804132, now seen corresponding path program 1 times [2022-03-18 21:02:51,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:51,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853925542] [2022-03-18 21:02:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:51,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:52,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:52,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853925542] [2022-03-18 21:02:52,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853925542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:52,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:52,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:52,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259676003] [2022-03-18 21:02:52,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:52,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:52,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:52,135 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) [2022-03-18 21:02:53,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:53,180 INFO L93 Difference]: Finished difference Result 834 states and 1071 transitions. [2022-03-18 21:02:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:02:53,181 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 [2022-03-18 21:02:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:53,183 INFO L225 Difference]: With dead ends: 834 [2022-03-18 21:02:53,183 INFO L226 Difference]: Without dead ends: 834 [2022-03-18 21:02:53,183 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 [2022-03-18 21:02:53,183 INFO L912 BasicCegarLoop]: 576 mSDtfsCounter, 648 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:53,184 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 1038 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:02:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-03-18 21:02:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 657. [2022-03-18 21:02:53,193 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) [2022-03-18 21:02:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2022-03-18 21:02:53,195 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 52 [2022-03-18 21:02:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:53,195 INFO L478 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2022-03-18 21:02:53,195 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) [2022-03-18 21:02:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2022-03-18 21:02:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-18 21:02:53,196 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:53,196 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] [2022-03-18 21:02:53,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:02:53,197 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash 211450194, now seen corresponding path program 1 times [2022-03-18 21:02:53,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:53,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029344742] [2022-03-18 21:02:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:53,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:53,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:53,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029344742] [2022-03-18 21:02:53,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029344742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:53,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:53,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-18 21:02:53,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741758864] [2022-03-18 21:02:53,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:53,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 21:02:53,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 21:02:53,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:02:53,407 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) [2022-03-18 21:02:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:54,446 INFO L93 Difference]: Finished difference Result 734 states and 928 transitions. [2022-03-18 21:02:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:02:54,447 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 [2022-03-18 21:02:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:54,448 INFO L225 Difference]: With dead ends: 734 [2022-03-18 21:02:54,448 INFO L226 Difference]: Without dead ends: 733 [2022-03-18 21:02:54,449 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 [2022-03-18 21:02:54,449 INFO L912 BasicCegarLoop]: 430 mSDtfsCounter, 476 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:54,449 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 1789 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-03-18 21:02:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 674. [2022-03-18 21:02:54,459 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) [2022-03-18 21:02:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 849 transitions. [2022-03-18 21:02:54,461 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 849 transitions. Word has length 53 [2022-03-18 21:02:54,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:54,461 INFO L478 AbstractCegarLoop]: Abstraction has 674 states and 849 transitions. [2022-03-18 21:02:54,461 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) [2022-03-18 21:02:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 849 transitions. [2022-03-18 21:02:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-18 21:02:54,462 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:54,462 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] [2022-03-18 21:02:54,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:02:54,463 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash 211481938, now seen corresponding path program 1 times [2022-03-18 21:02:54,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:54,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165807920] [2022-03-18 21:02:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:54,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:54,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:54,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165807920] [2022-03-18 21:02:54,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165807920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:54,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:54,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-18 21:02:54,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743128109] [2022-03-18 21:02:54,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:54,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 21:02:54,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:54,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 21:02:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:02:54,645 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) [2022-03-18 21:02:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:55,924 INFO L93 Difference]: Finished difference Result 716 states and 898 transitions. [2022-03-18 21:02:55,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:02:55,924 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 [2022-03-18 21:02:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:55,926 INFO L225 Difference]: With dead ends: 716 [2022-03-18 21:02:55,926 INFO L226 Difference]: Without dead ends: 704 [2022-03-18 21:02:55,927 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 [2022-03-18 21:02:55,927 INFO L912 BasicCegarLoop]: 434 mSDtfsCounter, 270 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:55,927 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1792 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 21:02:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-03-18 21:02:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 671. [2022-03-18 21:02:55,936 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) [2022-03-18 21:02:55,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 845 transitions. [2022-03-18 21:02:55,937 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 845 transitions. Word has length 53 [2022-03-18 21:02:55,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:55,938 INFO L478 AbstractCegarLoop]: Abstraction has 671 states and 845 transitions. [2022-03-18 21:02:55,938 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) [2022-03-18 21:02:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 845 transitions. [2022-03-18 21:02:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-18 21:02:55,939 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:55,939 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] [2022-03-18 21:02:55,940 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:02:55,940 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1414064793, now seen corresponding path program 1 times [2022-03-18 21:02:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:55,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695766269] [2022-03-18 21:02:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 21:02:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-18 21:02:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:56,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695766269] [2022-03-18 21:02:56,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695766269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:56,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:56,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:02:56,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096938395] [2022-03-18 21:02:56,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:56,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:02:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:56,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:02:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:02:56,157 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) [2022-03-18 21:02:57,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:57,366 INFO L93 Difference]: Finished difference Result 714 states and 894 transitions. [2022-03-18 21:02:57,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:02:57,366 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 [2022-03-18 21:02:57,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:57,368 INFO L225 Difference]: With dead ends: 714 [2022-03-18 21:02:57,368 INFO L226 Difference]: Without dead ends: 689 [2022-03-18 21:02:57,368 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-18 21:02:57,369 INFO L912 BasicCegarLoop]: 427 mSDtfsCounter, 668 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:57,369 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 1907 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 21:02:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-03-18 21:02:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 659. [2022-03-18 21:02:57,378 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) [2022-03-18 21:02:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 829 transitions. [2022-03-18 21:02:57,379 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 829 transitions. Word has length 55 [2022-03-18 21:02:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:57,379 INFO L478 AbstractCegarLoop]: Abstraction has 659 states and 829 transitions. [2022-03-18 21:02:57,380 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) [2022-03-18 21:02:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 829 transitions. [2022-03-18 21:02:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-18 21:02:57,381 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:57,381 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] [2022-03-18 21:02:57,381 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:02:57,381 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1737253539, now seen corresponding path program 1 times [2022-03-18 21:02:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:57,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396281352] [2022-03-18 21:02:57,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:02:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:57,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:57,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396281352] [2022-03-18 21:02:57,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396281352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:57,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:57,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:57,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977708333] [2022-03-18 21:02:57,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:57,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:57,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:57,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:57,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:57,559 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) [2022-03-18 21:02:58,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:58,837 INFO L93 Difference]: Finished difference Result 838 states and 1074 transitions. [2022-03-18 21:02:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-18 21:02:58,838 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 [2022-03-18 21:02:58,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:58,840 INFO L225 Difference]: With dead ends: 838 [2022-03-18 21:02:58,841 INFO L226 Difference]: Without dead ends: 824 [2022-03-18 21:02:58,841 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 [2022-03-18 21:02:58,841 INFO L912 BasicCegarLoop]: 524 mSDtfsCounter, 1210 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:58,842 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 1007 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:02:58,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-03-18 21:02:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2022-03-18 21:02:58,851 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) [2022-03-18 21:02:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2022-03-18 21:02:58,852 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 54 [2022-03-18 21:02:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:58,852 INFO L478 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2022-03-18 21:02:58,852 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) [2022-03-18 21:02:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2022-03-18 21:02:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-18 21:02:58,853 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:58,853 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] [2022-03-18 21:02:58,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:02:58,854 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1146238667, now seen corresponding path program 1 times [2022-03-18 21:02:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745968509] [2022-03-18 21:02:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-03-18 21:02:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-03-18 21:02:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:58,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:58,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745968509] [2022-03-18 21:02:58,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745968509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:58,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:58,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:02:58,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71414685] [2022-03-18 21:02:58,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:58,987 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:02:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:02:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:02:58,988 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-18 21:02:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:02:59,642 INFO L93 Difference]: Finished difference Result 682 states and 853 transitions. [2022-03-18 21:02:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 21:02:59,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-03-18 21:02:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:02:59,644 INFO L225 Difference]: With dead ends: 682 [2022-03-18 21:02:59,644 INFO L226 Difference]: Without dead ends: 682 [2022-03-18 21:02:59,645 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 [2022-03-18 21:02:59,645 INFO L912 BasicCegarLoop]: 404 mSDtfsCounter, 759 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:02:59,645 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 851 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-18 21:02:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-03-18 21:02:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 648. [2022-03-18 21:02:59,653 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) [2022-03-18 21:02:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 811 transitions. [2022-03-18 21:02:59,654 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 811 transitions. Word has length 61 [2022-03-18 21:02:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:02:59,654 INFO L478 AbstractCegarLoop]: Abstraction has 648 states and 811 transitions. [2022-03-18 21:02:59,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-18 21:02:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 811 transitions. [2022-03-18 21:02:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:02:59,656 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:02:59,656 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] [2022-03-18 21:02:59,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:02:59,656 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:02:59,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:02:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash -852745671, now seen corresponding path program 1 times [2022-03-18 21:02:59,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:02:59,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009162332] [2022-03-18 21:02:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:02:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:02:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:02:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:02:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:02:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-18 21:02:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:02:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:02:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:02:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:02:59,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:02:59,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009162332] [2022-03-18 21:02:59,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009162332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:02:59,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:02:59,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:02:59,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588449233] [2022-03-18 21:02:59,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:02:59,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:02:59,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:02:59,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:02:59,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:02:59,892 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) [2022-03-18 21:03:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:00,857 INFO L93 Difference]: Finished difference Result 631 states and 782 transitions. [2022-03-18 21:03:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:03:00,857 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 [2022-03-18 21:03:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:00,859 INFO L225 Difference]: With dead ends: 631 [2022-03-18 21:03:00,859 INFO L226 Difference]: Without dead ends: 631 [2022-03-18 21:03:00,859 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 [2022-03-18 21:03:00,860 INFO L912 BasicCegarLoop]: 407 mSDtfsCounter, 337 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:00,860 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1211 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:00,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-03-18 21:03:00,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 593. [2022-03-18 21:03:00,867 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) [2022-03-18 21:03:00,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2022-03-18 21:03:00,868 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 64 [2022-03-18 21:03:00,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:00,868 INFO L478 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2022-03-18 21:03:00,869 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) [2022-03-18 21:03:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2022-03-18 21:03:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-18 21:03:00,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:00,870 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] [2022-03-18 21:03:00,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:03:00,870 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1291608918, now seen corresponding path program 1 times [2022-03-18 21:03:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:00,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707262164] [2022-03-18 21:03:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:03:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-18 21:03:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:01,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707262164] [2022-03-18 21:03:01,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707262164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:01,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:01,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:01,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729274685] [2022-03-18 21:03:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:01,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:01,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:01,077 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) [2022-03-18 21:03:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:02,370 INFO L93 Difference]: Finished difference Result 635 states and 782 transitions. [2022-03-18 21:03:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-18 21:03:02,370 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 [2022-03-18 21:03:02,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:02,372 INFO L225 Difference]: With dead ends: 635 [2022-03-18 21:03:02,372 INFO L226 Difference]: Without dead ends: 617 [2022-03-18 21:03:02,372 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 [2022-03-18 21:03:02,373 INFO L912 BasicCegarLoop]: 386 mSDtfsCounter, 481 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:02,373 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1234 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 21:03:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-18 21:03:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2022-03-18 21:03:02,382 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) [2022-03-18 21:03:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 729 transitions. [2022-03-18 21:03:02,384 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 729 transitions. Word has length 59 [2022-03-18 21:03:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:02,384 INFO L478 AbstractCegarLoop]: Abstraction has 590 states and 729 transitions. [2022-03-18 21:03:02,384 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) [2022-03-18 21:03:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 729 transitions. [2022-03-18 21:03:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-18 21:03:02,385 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:02,385 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] [2022-03-18 21:03:02,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:03:02,385 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash -565629154, now seen corresponding path program 1 times [2022-03-18 21:03:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717148748] [2022-03-18 21:03:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-18 21:03:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:02,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:02,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717148748] [2022-03-18 21:03:02,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717148748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:02,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:02,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-18 21:03:02,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994208645] [2022-03-18 21:03:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:02,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 21:03:02,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 21:03:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:03:02,586 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) [2022-03-18 21:03:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:03,693 INFO L93 Difference]: Finished difference Result 628 states and 773 transitions. [2022-03-18 21:03:03,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 21:03:03,695 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 [2022-03-18 21:03:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:03,697 INFO L225 Difference]: With dead ends: 628 [2022-03-18 21:03:03,697 INFO L226 Difference]: Without dead ends: 613 [2022-03-18 21:03:03,697 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 [2022-03-18 21:03:03,697 INFO L912 BasicCegarLoop]: 417 mSDtfsCounter, 448 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:03,698 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1666 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:03:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-18 21:03:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 586. [2022-03-18 21:03:03,705 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) [2022-03-18 21:03:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 723 transitions. [2022-03-18 21:03:03,707 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 723 transitions. Word has length 58 [2022-03-18 21:03:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:03,707 INFO L478 AbstractCegarLoop]: Abstraction has 586 states and 723 transitions. [2022-03-18 21:03:03,707 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) [2022-03-18 21:03:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 723 transitions. [2022-03-18 21:03:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-18 21:03:03,708 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:03,708 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] [2022-03-18 21:03:03,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:03:03,709 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 167534806, now seen corresponding path program 1 times [2022-03-18 21:03:03,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:03,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653900851] [2022-03-18 21:03:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:03,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-18 21:03:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-03-18 21:03:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:03,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:03,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653900851] [2022-03-18 21:03:03,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653900851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:03,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:03,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:03,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684401186] [2022-03-18 21:03:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:03,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:03,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:03,897 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) [2022-03-18 21:03:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:05,036 INFO L93 Difference]: Finished difference Result 641 states and 785 transitions. [2022-03-18 21:03:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:03:05,036 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 [2022-03-18 21:03:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:05,041 INFO L225 Difference]: With dead ends: 641 [2022-03-18 21:03:05,041 INFO L226 Difference]: Without dead ends: 620 [2022-03-18 21:03:05,041 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-18 21:03:05,041 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 420 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:05,042 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 952 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:03:05,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-03-18 21:03:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 581. [2022-03-18 21:03:05,049 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) [2022-03-18 21:03:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 715 transitions. [2022-03-18 21:03:05,052 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 715 transitions. Word has length 60 [2022-03-18 21:03:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:05,052 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 715 transitions. [2022-03-18 21:03:05,053 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) [2022-03-18 21:03:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 715 transitions. [2022-03-18 21:03:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:03:05,054 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:05,054 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] [2022-03-18 21:03:05,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:03:05,054 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:05,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:05,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1284427578, now seen corresponding path program 1 times [2022-03-18 21:03:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:05,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432233350] [2022-03-18 21:03:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:05,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-18 21:03:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:05,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:05,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432233350] [2022-03-18 21:03:05,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432233350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:05,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:05,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777627935] [2022-03-18 21:03:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:05,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:05,274 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) [2022-03-18 21:03:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:06,147 INFO L93 Difference]: Finished difference Result 614 states and 756 transitions. [2022-03-18 21:03:06,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-18 21:03:06,147 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 [2022-03-18 21:03:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:06,149 INFO L225 Difference]: With dead ends: 614 [2022-03-18 21:03:06,149 INFO L226 Difference]: Without dead ends: 614 [2022-03-18 21:03:06,150 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 [2022-03-18 21:03:06,150 INFO L912 BasicCegarLoop]: 383 mSDtfsCounter, 890 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:06,150 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 1010 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-18 21:03:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-03-18 21:03:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 581. [2022-03-18 21:03:06,156 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) [2022-03-18 21:03:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 713 transitions. [2022-03-18 21:03:06,157 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 713 transitions. Word has length 68 [2022-03-18 21:03:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:06,158 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 713 transitions. [2022-03-18 21:03:06,158 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) [2022-03-18 21:03:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 713 transitions. [2022-03-18 21:03:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 21:03:06,159 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:06,159 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] [2022-03-18 21:03:06,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:03:06,159 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash 122742069, now seen corresponding path program 1 times [2022-03-18 21:03:06,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:06,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919734293] [2022-03-18 21:03:06,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:06,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:03:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-18 21:03:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:06,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919734293] [2022-03-18 21:03:06,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919734293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:06,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:06,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-18 21:03:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728221181] [2022-03-18 21:03:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:06,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-18 21:03:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-18 21:03:06,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:03:06,329 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) [2022-03-18 21:03:07,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:07,412 INFO L93 Difference]: Finished difference Result 611 states and 750 transitions. [2022-03-18 21:03:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:03:07,413 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 [2022-03-18 21:03:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:07,414 INFO L225 Difference]: With dead ends: 611 [2022-03-18 21:03:07,414 INFO L226 Difference]: Without dead ends: 611 [2022-03-18 21:03:07,414 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 [2022-03-18 21:03:07,415 INFO L912 BasicCegarLoop]: 389 mSDtfsCounter, 389 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:07,415 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 874 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:03:07,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-03-18 21:03:07,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 585. [2022-03-18 21:03:07,421 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) [2022-03-18 21:03:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 717 transitions. [2022-03-18 21:03:07,422 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 717 transitions. Word has length 63 [2022-03-18 21:03:07,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:07,422 INFO L478 AbstractCegarLoop]: Abstraction has 585 states and 717 transitions. [2022-03-18 21:03:07,422 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) [2022-03-18 21:03:07,422 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 717 transitions. [2022-03-18 21:03:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 21:03:07,423 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:07,424 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] [2022-03-18 21:03:07,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:03:07,424 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:07,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1923447467, now seen corresponding path program 1 times [2022-03-18 21:03:07,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:07,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592801451] [2022-03-18 21:03:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:07,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:03:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-18 21:03:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:07,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:07,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592801451] [2022-03-18 21:03:07,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592801451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:07,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:07,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:07,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165475407] [2022-03-18 21:03:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:07,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:07,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:07,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:07,606 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) [2022-03-18 21:03:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:08,844 INFO L93 Difference]: Finished difference Result 594 states and 727 transitions. [2022-03-18 21:03:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:08,844 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 [2022-03-18 21:03:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:08,846 INFO L225 Difference]: With dead ends: 594 [2022-03-18 21:03:08,846 INFO L226 Difference]: Without dead ends: 594 [2022-03-18 21:03:08,846 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-03-18 21:03:08,846 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 511 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:08,847 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1073 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 21:03:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-03-18 21:03:08,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 571. [2022-03-18 21:03:08,853 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) [2022-03-18 21:03:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 698 transitions. [2022-03-18 21:03:08,854 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 698 transitions. Word has length 63 [2022-03-18 21:03:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:08,854 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 698 transitions. [2022-03-18 21:03:08,854 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) [2022-03-18 21:03:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 698 transitions. [2022-03-18 21:03:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 21:03:08,855 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:08,855 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] [2022-03-18 21:03:08,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:03:08,856 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1303988576, now seen corresponding path program 1 times [2022-03-18 21:03:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:08,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358890815] [2022-03-18 21:03:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:08,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:03:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:09,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:09,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358890815] [2022-03-18 21:03:09,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358890815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:09,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:09,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:09,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158775299] [2022-03-18 21:03:09,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:09,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:09,063 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) [2022-03-18 21:03:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:10,380 INFO L93 Difference]: Finished difference Result 593 states and 725 transitions. [2022-03-18 21:03:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:10,380 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 [2022-03-18 21:03:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:10,381 INFO L225 Difference]: With dead ends: 593 [2022-03-18 21:03:10,381 INFO L226 Difference]: Without dead ends: 590 [2022-03-18 21:03:10,382 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-03-18 21:03:10,382 INFO L912 BasicCegarLoop]: 379 mSDtfsCounter, 271 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:10,382 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1088 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 21:03:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-18 21:03:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2022-03-18 21:03:10,388 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) [2022-03-18 21:03:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 688 transitions. [2022-03-18 21:03:10,389 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 688 transitions. Word has length 63 [2022-03-18 21:03:10,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:10,389 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 688 transitions. [2022-03-18 21:03:10,389 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) [2022-03-18 21:03:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 688 transitions. [2022-03-18 21:03:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-18 21:03:10,390 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:10,390 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] [2022-03-18 21:03:10,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:03:10,391 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash -343974296, now seen corresponding path program 1 times [2022-03-18 21:03:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:10,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334715310] [2022-03-18 21:03:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-18 21:03:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:10,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:10,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334715310] [2022-03-18 21:03:10,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334715310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:10,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:10,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:10,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556646388] [2022-03-18 21:03:10,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:10,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:10,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:10,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:10,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:10,588 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) [2022-03-18 21:03:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:11,472 INFO L93 Difference]: Finished difference Result 615 states and 755 transitions. [2022-03-18 21:03:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-18 21:03:11,472 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 [2022-03-18 21:03:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:11,474 INFO L225 Difference]: With dead ends: 615 [2022-03-18 21:03:11,474 INFO L226 Difference]: Without dead ends: 615 [2022-03-18 21:03:11,474 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 [2022-03-18 21:03:11,475 INFO L912 BasicCegarLoop]: 395 mSDtfsCounter, 505 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:11,475 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 1416 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:03:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-03-18 21:03:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 563. [2022-03-18 21:03:11,481 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) [2022-03-18 21:03:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 686 transitions. [2022-03-18 21:03:11,482 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 686 transitions. Word has length 71 [2022-03-18 21:03:11,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:11,482 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 686 transitions. [2022-03-18 21:03:11,482 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) [2022-03-18 21:03:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 686 transitions. [2022-03-18 21:03:11,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:03:11,484 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:11,484 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] [2022-03-18 21:03:11,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:03:11,484 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:11,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:11,484 INFO L85 PathProgramCache]: Analyzing trace with hash -795445846, now seen corresponding path program 1 times [2022-03-18 21:03:11,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:11,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432053815] [2022-03-18 21:03:11,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:11,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-18 21:03:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-18 21:03:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:11,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:11,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432053815] [2022-03-18 21:03:11,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432053815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:11,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:11,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-18 21:03:11,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660191853] [2022-03-18 21:03:11,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:11,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-18 21:03:11,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:11,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-18 21:03:11,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:03:11,664 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) [2022-03-18 21:03:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:12,669 INFO L93 Difference]: Finished difference Result 575 states and 704 transitions. [2022-03-18 21:03:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:12,669 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 [2022-03-18 21:03:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:12,670 INFO L225 Difference]: With dead ends: 575 [2022-03-18 21:03:12,670 INFO L226 Difference]: Without dead ends: 575 [2022-03-18 21:03:12,671 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 [2022-03-18 21:03:12,671 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 407 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:12,671 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 925 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-03-18 21:03:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 543. [2022-03-18 21:03:12,677 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) [2022-03-18 21:03:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 664 transitions. [2022-03-18 21:03:12,678 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 664 transitions. Word has length 64 [2022-03-18 21:03:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:12,678 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 664 transitions. [2022-03-18 21:03:12,678 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) [2022-03-18 21:03:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 664 transitions. [2022-03-18 21:03:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 21:03:12,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:12,679 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] [2022-03-18 21:03:12,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:03:12,680 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1222711343, now seen corresponding path program 1 times [2022-03-18 21:03:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:12,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585790071] [2022-03-18 21:03:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:12,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:12,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:12,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585790071] [2022-03-18 21:03:12,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585790071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:12,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:12,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930431211] [2022-03-18 21:03:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:12,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:12,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:12,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:12,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:12,867 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) [2022-03-18 21:03:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:14,180 INFO L93 Difference]: Finished difference Result 584 states and 712 transitions. [2022-03-18 21:03:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:14,180 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 [2022-03-18 21:03:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:14,182 INFO L225 Difference]: With dead ends: 584 [2022-03-18 21:03:14,182 INFO L226 Difference]: Without dead ends: 566 [2022-03-18 21:03:14,182 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 [2022-03-18 21:03:14,182 INFO L912 BasicCegarLoop]: 388 mSDtfsCounter, 197 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 2688 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:14,182 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1749 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2688 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-18 21:03:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-18 21:03:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 539. [2022-03-18 21:03:14,189 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) [2022-03-18 21:03:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 658 transitions. [2022-03-18 21:03:14,190 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 658 transitions. Word has length 63 [2022-03-18 21:03:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:14,190 INFO L478 AbstractCegarLoop]: Abstraction has 539 states and 658 transitions. [2022-03-18 21:03:14,190 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) [2022-03-18 21:03:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 658 transitions. [2022-03-18 21:03:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:03:14,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:14,191 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] [2022-03-18 21:03:14,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:03:14,191 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:14,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash 104682271, now seen corresponding path program 1 times [2022-03-18 21:03:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:14,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28931143] [2022-03-18 21:03:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-18 21:03:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:14,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:14,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28931143] [2022-03-18 21:03:14,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28931143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:14,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:14,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-18 21:03:14,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506419637] [2022-03-18 21:03:14,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:14,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 21:03:14,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 21:03:14,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:03:14,389 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) [2022-03-18 21:03:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:15,371 INFO L93 Difference]: Finished difference Result 574 states and 699 transitions. [2022-03-18 21:03:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:15,375 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 [2022-03-18 21:03:15,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:15,377 INFO L225 Difference]: With dead ends: 574 [2022-03-18 21:03:15,377 INFO L226 Difference]: Without dead ends: 555 [2022-03-18 21:03:15,377 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 [2022-03-18 21:03:15,378 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 326 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:15,379 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1564 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-18 21:03:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 528. [2022-03-18 21:03:15,384 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) [2022-03-18 21:03:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 643 transitions. [2022-03-18 21:03:15,385 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 643 transitions. Word has length 64 [2022-03-18 21:03:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:15,386 INFO L478 AbstractCegarLoop]: Abstraction has 528 states and 643 transitions. [2022-03-18 21:03:15,386 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) [2022-03-18 21:03:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 643 transitions. [2022-03-18 21:03:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:03:15,387 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:15,387 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] [2022-03-18 21:03:15,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:03:15,387 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:15,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:15,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1688169128, now seen corresponding path program 1 times [2022-03-18 21:03:15,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:15,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523673045] [2022-03-18 21:03:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:15,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:15,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:15,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523673045] [2022-03-18 21:03:15,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523673045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:15,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:15,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:15,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316299075] [2022-03-18 21:03:15,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:15,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:15,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:15,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:15,585 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) [2022-03-18 21:03:16,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:16,546 INFO L93 Difference]: Finished difference Result 569 states and 691 transitions. [2022-03-18 21:03:16,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:16,546 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 [2022-03-18 21:03:16,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:16,547 INFO L225 Difference]: With dead ends: 569 [2022-03-18 21:03:16,547 INFO L226 Difference]: Without dead ends: 550 [2022-03-18 21:03:16,548 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 [2022-03-18 21:03:16,548 INFO L912 BasicCegarLoop]: 372 mSDtfsCounter, 461 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:16,548 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1663 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-18 21:03:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 523. [2022-03-18 21:03:16,553 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) [2022-03-18 21:03:16,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 636 transitions. [2022-03-18 21:03:16,554 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 636 transitions. Word has length 64 [2022-03-18 21:03:16,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:16,556 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 636 transitions. [2022-03-18 21:03:16,556 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) [2022-03-18 21:03:16,556 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 636 transitions. [2022-03-18 21:03:16,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:03:16,557 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:16,557 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] [2022-03-18 21:03:16,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:03:16,557 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:16,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1342005334, now seen corresponding path program 1 times [2022-03-18 21:03:16,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:16,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190548063] [2022-03-18 21:03:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:16,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:16,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:16,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190548063] [2022-03-18 21:03:16,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190548063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:16,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:16,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:16,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021885773] [2022-03-18 21:03:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:16,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:16,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:16,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:16,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:16,768 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) [2022-03-18 21:03:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:17,695 INFO L93 Difference]: Finished difference Result 564 states and 684 transitions. [2022-03-18 21:03:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:17,695 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 [2022-03-18 21:03:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:17,697 INFO L225 Difference]: With dead ends: 564 [2022-03-18 21:03:17,697 INFO L226 Difference]: Without dead ends: 546 [2022-03-18 21:03:17,697 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 [2022-03-18 21:03:17,698 INFO L912 BasicCegarLoop]: 366 mSDtfsCounter, 457 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:17,698 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1597 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-18 21:03:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 519. [2022-03-18 21:03:17,704 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) [2022-03-18 21:03:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 630 transitions. [2022-03-18 21:03:17,705 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 630 transitions. Word has length 64 [2022-03-18 21:03:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:17,705 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 630 transitions. [2022-03-18 21:03:17,705 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) [2022-03-18 21:03:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 630 transitions. [2022-03-18 21:03:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-18 21:03:17,706 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:17,706 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] [2022-03-18 21:03:17,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 21:03:17,706 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -831773029, now seen corresponding path program 1 times [2022-03-18 21:03:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:17,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419353462] [2022-03-18 21:03:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-18 21:03:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:17,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:17,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419353462] [2022-03-18 21:03:17,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419353462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:17,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:17,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-18 21:03:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22776095] [2022-03-18 21:03:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:17,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-18 21:03:17,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-18 21:03:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-18 21:03:17,871 INFO L87 Difference]: Start difference. First operand 519 states and 630 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-18 21:03:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:18,651 INFO L93 Difference]: Finished difference Result 690 states and 836 transitions. [2022-03-18 21:03:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-18 21:03:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-03-18 21:03:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:18,654 INFO L225 Difference]: With dead ends: 690 [2022-03-18 21:03:18,654 INFO L226 Difference]: Without dead ends: 690 [2022-03-18 21:03:18,654 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 [2022-03-18 21:03:18,654 INFO L912 BasicCegarLoop]: 426 mSDtfsCounter, 715 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:18,655 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 1022 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-18 21:03:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-03-18 21:03:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 640. [2022-03-18 21:03:18,662 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) [2022-03-18 21:03:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 778 transitions. [2022-03-18 21:03:18,663 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 778 transitions. Word has length 70 [2022-03-18 21:03:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:18,663 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 778 transitions. [2022-03-18 21:03:18,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-18 21:03:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 778 transitions. [2022-03-18 21:03:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:03:18,664 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:18,665 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] [2022-03-18 21:03:18,665 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 21:03:18,665 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:18,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash -434332053, now seen corresponding path program 1 times [2022-03-18 21:03:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:18,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833220672] [2022-03-18 21:03:18,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:18,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-03-18 21:03:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:18,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:18,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833220672] [2022-03-18 21:03:18,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833220672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:18,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:18,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:18,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289357418] [2022-03-18 21:03:18,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:18,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:18,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:18,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:18,871 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) [2022-03-18 21:03:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:19,697 INFO L93 Difference]: Finished difference Result 681 states and 827 transitions. [2022-03-18 21:03:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-18 21:03:19,698 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 [2022-03-18 21:03:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:19,699 INFO L225 Difference]: With dead ends: 681 [2022-03-18 21:03:19,699 INFO L226 Difference]: Without dead ends: 641 [2022-03-18 21:03:19,699 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 [2022-03-18 21:03:19,700 INFO L912 BasicCegarLoop]: 358 mSDtfsCounter, 725 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:19,700 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 1540 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:03:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-03-18 21:03:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 614. [2022-03-18 21:03:19,705 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) [2022-03-18 21:03:19,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 746 transitions. [2022-03-18 21:03:19,706 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 746 transitions. Word has length 68 [2022-03-18 21:03:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:19,707 INFO L478 AbstractCegarLoop]: Abstraction has 614 states and 746 transitions. [2022-03-18 21:03:19,707 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) [2022-03-18 21:03:19,707 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 746 transitions. [2022-03-18 21:03:19,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-18 21:03:19,708 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:19,708 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] [2022-03-18 21:03:19,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 21:03:19,708 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 716016786, now seen corresponding path program 1 times [2022-03-18 21:03:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667600437] [2022-03-18 21:03:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-18 21:03:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-18 21:03:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-18 21:03:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-18 21:03:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:19,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:19,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667600437] [2022-03-18 21:03:19,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667600437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:19,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:19,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-18 21:03:19,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128868288] [2022-03-18 21:03:19,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:19,932 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-18 21:03:19,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:19,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-18 21:03:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-03-18 21:03:19,933 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) [2022-03-18 21:03:21,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:21,032 INFO L93 Difference]: Finished difference Result 651 states and 790 transitions. [2022-03-18 21:03:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-18 21:03:21,032 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 [2022-03-18 21:03:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:21,034 INFO L225 Difference]: With dead ends: 651 [2022-03-18 21:03:21,034 INFO L226 Difference]: Without dead ends: 600 [2022-03-18 21:03:21,034 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-03-18 21:03:21,034 INFO L912 BasicCegarLoop]: 324 mSDtfsCounter, 715 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:21,034 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 973 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-18 21:03:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-18 21:03:21,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-03-18 21:03:21,041 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) [2022-03-18 21:03:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 694 transitions. [2022-03-18 21:03:21,041 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 694 transitions. Word has length 71 [2022-03-18 21:03:21,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:21,042 INFO L478 AbstractCegarLoop]: Abstraction has 573 states and 694 transitions. [2022-03-18 21:03:21,042 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) [2022-03-18 21:03:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 694 transitions. [2022-03-18 21:03:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 21:03:21,042 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:21,042 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] [2022-03-18 21:03:21,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 21:03:21,043 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:21,043 INFO L85 PathProgramCache]: Analyzing trace with hash 51937116, now seen corresponding path program 1 times [2022-03-18 21:03:21,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:21,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030731870] [2022-03-18 21:03:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:21,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-03-18 21:03:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-03-18 21:03:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:21,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030731870] [2022-03-18 21:03:21,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030731870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:21,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-18 21:03:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970843114] [2022-03-18 21:03:21,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:21,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-18 21:03:21,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-18 21:03:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:03:21,207 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) [2022-03-18 21:03:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:21,881 INFO L93 Difference]: Finished difference Result 588 states and 706 transitions. [2022-03-18 21:03:21,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-18 21:03:21,881 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 [2022-03-18 21:03:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:21,883 INFO L225 Difference]: With dead ends: 588 [2022-03-18 21:03:21,887 INFO L226 Difference]: Without dead ends: 588 [2022-03-18 21:03:21,887 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-03-18 21:03:21,888 INFO L912 BasicCegarLoop]: 411 mSDtfsCounter, 520 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:21,888 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1181 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-18 21:03:21,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-18 21:03:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 555. [2022-03-18 21:03:21,894 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) [2022-03-18 21:03:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2022-03-18 21:03:21,895 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 82 [2022-03-18 21:03:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:21,895 INFO L478 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2022-03-18 21:03:21,895 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) [2022-03-18 21:03:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2022-03-18 21:03:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 21:03:21,896 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:21,896 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] [2022-03-18 21:03:21,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 21:03:21,896 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:21,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1630108315, now seen corresponding path program 1 times [2022-03-18 21:03:21,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:21,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100433434] [2022-03-18 21:03:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:21,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:21,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-18 21:03:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-03-18 21:03:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:22,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100433434] [2022-03-18 21:03:22,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100433434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:22,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:22,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-18 21:03:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275342853] [2022-03-18 21:03:22,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:22,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-18 21:03:22,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:22,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-18 21:03:22,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:03:22,122 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) [2022-03-18 21:03:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:22,931 INFO L93 Difference]: Finished difference Result 664 states and 832 transitions. [2022-03-18 21:03:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-18 21:03:22,931 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 [2022-03-18 21:03:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:22,933 INFO L225 Difference]: With dead ends: 664 [2022-03-18 21:03:22,933 INFO L226 Difference]: Without dead ends: 664 [2022-03-18 21:03:22,934 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-03-18 21:03:22,934 INFO L912 BasicCegarLoop]: 357 mSDtfsCounter, 460 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:22,934 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1756 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-18 21:03:22,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-03-18 21:03:22,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 519. [2022-03-18 21:03:22,940 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) [2022-03-18 21:03:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 618 transitions. [2022-03-18 21:03:22,940 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 618 transitions. Word has length 83 [2022-03-18 21:03:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:22,941 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 618 transitions. [2022-03-18 21:03:22,941 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) [2022-03-18 21:03:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 618 transitions. [2022-03-18 21:03:22,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-18 21:03:22,942 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:22,942 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] [2022-03-18 21:03:22,942 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-18 21:03:22,942 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:22,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1973979160, now seen corresponding path program 1 times [2022-03-18 21:03:22,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:22,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782116227] [2022-03-18 21:03:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:22,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-03-18 21:03:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:23,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782116227] [2022-03-18 21:03:23,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782116227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:23,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:23,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-18 21:03:23,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334075084] [2022-03-18 21:03:23,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:23,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-18 21:03:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:23,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-18 21:03:23,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-18 21:03:23,228 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) [2022-03-18 21:03:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:24,260 INFO L93 Difference]: Finished difference Result 594 states and 707 transitions. [2022-03-18 21:03:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-18 21:03:24,261 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 [2022-03-18 21:03:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:24,262 INFO L225 Difference]: With dead ends: 594 [2022-03-18 21:03:24,263 INFO L226 Difference]: Without dead ends: 576 [2022-03-18 21:03:24,263 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-03-18 21:03:24,263 INFO L912 BasicCegarLoop]: 307 mSDtfsCounter, 367 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:24,263 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1728 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-18 21:03:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-03-18 21:03:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 527. [2022-03-18 21:03:24,269 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) [2022-03-18 21:03:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 628 transitions. [2022-03-18 21:03:24,270 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 628 transitions. Word has length 88 [2022-03-18 21:03:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:24,271 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 628 transitions. [2022-03-18 21:03:24,271 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) [2022-03-18 21:03:24,271 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 628 transitions. [2022-03-18 21:03:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-18 21:03:24,272 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:24,272 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] [2022-03-18 21:03:24,272 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-18 21:03:24,272 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1885499687, now seen corresponding path program 1 times [2022-03-18 21:03:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345848893] [2022-03-18 21:03:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-18 21:03:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-18 21:03:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-18 21:03:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-03-18 21:03:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:24,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:24,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345848893] [2022-03-18 21:03:24,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345848893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:24,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:24,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-18 21:03:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339327694] [2022-03-18 21:03:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:24,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-18 21:03:24,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-18 21:03:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-18 21:03:24,511 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) [2022-03-18 21:03:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:25,313 INFO L93 Difference]: Finished difference Result 594 states and 706 transitions. [2022-03-18 21:03:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-18 21:03:25,314 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 [2022-03-18 21:03:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:25,315 INFO L225 Difference]: With dead ends: 594 [2022-03-18 21:03:25,316 INFO L226 Difference]: Without dead ends: 576 [2022-03-18 21:03:25,316 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 [2022-03-18 21:03:25,316 INFO L912 BasicCegarLoop]: 323 mSDtfsCounter, 414 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:25,316 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1930 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-18 21:03:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-03-18 21:03:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 519. [2022-03-18 21:03:25,322 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) [2022-03-18 21:03:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 617 transitions. [2022-03-18 21:03:25,323 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 617 transitions. Word has length 89 [2022-03-18 21:03:25,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:25,323 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 617 transitions. [2022-03-18 21:03:25,323 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) [2022-03-18 21:03:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 617 transitions. [2022-03-18 21:03:25,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 21:03:25,324 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:25,325 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] [2022-03-18 21:03:25,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-18 21:03:25,325 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1284112929, now seen corresponding path program 1 times [2022-03-18 21:03:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:25,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143740101] [2022-03-18 21:03:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:03:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-18 21:03:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-18 21:03:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-03-18 21:03:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-18 21:03:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-18 21:03:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-03-18 21:03:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:03:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:03:25,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:03:25,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143740101] [2022-03-18 21:03:25,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143740101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:03:25,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:03:25,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-18 21:03:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230402663] [2022-03-18 21:03:25,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:03:25,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-18 21:03:25,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:03:25,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-18 21:03:25,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:03:25,534 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) [2022-03-18 21:03:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:03:26,467 INFO L93 Difference]: Finished difference Result 666 states and 776 transitions. [2022-03-18 21:03:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-18 21:03:26,468 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 [2022-03-18 21:03:26,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:03:26,469 INFO L225 Difference]: With dead ends: 666 [2022-03-18 21:03:26,469 INFO L226 Difference]: Without dead ends: 666 [2022-03-18 21:03:26,469 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-03-18 21:03:26,470 INFO L912 BasicCegarLoop]: 336 mSDtfsCounter, 743 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:03:26,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 595 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:03:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-18 21:03:26,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 640. [2022-03-18 21:03:26,476 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) [2022-03-18 21:03:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 750 transitions. [2022-03-18 21:03:26,477 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 750 transitions. Word has length 84 [2022-03-18 21:03:26,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:03:26,478 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 750 transitions. [2022-03-18 21:03:26,478 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) [2022-03-18 21:03:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 750 transitions. [2022-03-18 21:03:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 21:03:26,479 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:03:26,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:03:26,479 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 21:03:26,479 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:03:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:03:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash -356676981, now seen corresponding path program 1 times [2022-03-18 21:03:26,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:03:26,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600184428] [2022-03-18 21:03:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:03:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:03:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 21:03:26,496 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-18 21:03:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 21:03:26,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-18 21:03:26,577 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-18 21:03:26,578 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 21:03:26,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-18 21:03:26,586 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] [2022-03-18 21:03:26,589 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 21:03:26,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:03:26 BasicIcfg [2022-03-18 21:03:26,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 21:03:26,709 INFO L158 Benchmark]: Toolchain (without parser) took 69792.07ms. Allocated memory was 180.4MB in the beginning and 349.2MB in the end (delta: 168.8MB). Free memory was 124.9MB in the beginning and 196.6MB in the end (delta: -71.7MB). Peak memory consumption was 97.8MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,709 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 21:03:26,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.22ms. Allocated memory was 180.4MB in the beginning and 276.8MB in the end (delta: 96.5MB). Free memory was 124.8MB in the beginning and 236.9MB in the end (delta: -112.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,709 INFO L158 Benchmark]: Boogie Preprocessor took 95.40ms. Allocated memory is still 276.8MB. Free memory was 236.9MB in the beginning and 232.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,709 INFO L158 Benchmark]: RCFGBuilder took 971.13ms. Allocated memory is still 276.8MB. Free memory was 232.8MB in the beginning and 231.5MB in the end (delta: 1.3MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,709 INFO L158 Benchmark]: IcfgTransformer took 42.55ms. Allocated memory is still 276.8MB. Free memory was 231.5MB in the beginning and 225.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,712 INFO L158 Benchmark]: TraceAbstraction took 68113.31ms. Allocated memory was 276.8MB in the beginning and 349.2MB in the end (delta: 72.4MB). Free memory was 224.8MB in the beginning and 196.6MB in the end (delta: 28.2MB). Peak memory consumption was 100.5MB. Max. memory is 8.0GB. [2022-03-18 21:03:26,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 562.22ms. Allocated memory was 180.4MB in the beginning and 276.8MB in the end (delta: 96.5MB). Free memory was 124.8MB in the beginning and 236.9MB in the end (delta: -112.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 95.40ms. Allocated memory is still 276.8MB. Free memory was 236.9MB in the beginning and 232.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 971.13ms. Allocated memory is still 276.8MB. Free memory was 232.8MB in the beginning and 231.5MB in the end (delta: 1.3MB). Peak memory consumption was 44.4MB. Max. memory is 8.0GB. * IcfgTransformer took 42.55ms. Allocated memory is still 276.8MB. Free memory was 231.5MB in the beginning and 225.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 68113.31ms. Allocated memory was 276.8MB in the beginning and 349.2MB in the end (delta: 72.4MB). Free memory was 224.8MB in the beginning and 196.6MB in the end (delta: 28.2MB). Peak memory consumption was 100.5MB. 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: 67.9s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 56.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35795 SdHoareTripleChecker+Valid, 49.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35330 mSDsluCounter, 62568 SdHoareTripleChecker+Invalid, 42.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39554 mSDsCounter, 10961 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82536 IncrementalHoareTripleChecker+Invalid, 93497 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10961 mSolverCounterUnsat, 23014 mSDtfsCounter, 82536 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1176 GetRequests, 476 SyntacticMatches, 7 SemanticMatches, 693 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 11.1s 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: 0.7s AutomataMinimizationTime, 53 MinimizatonAttempts, 2733 StatesRemovedByMinimization, 53 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 3004 NumberOfCodeBlocks, 3004 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2866 ConstructedInterpolants, 0 QuantifiedInterpolants, 14478 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! [2022-03-18 21:03:26,754 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...