/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:27:12,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:27:12,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:27:12,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:27:12,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:27:12,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:27:12,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:27:12,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:27:12,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:27:12,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:27:12,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:27:12,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:27:12,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:27:12,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:27:12,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:27:12,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:27:12,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:27:12,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:27:12,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:27:12,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:27:12,625 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:27:12,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:27:12,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:27:12,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:27:12,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:27:12,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 02:27:12,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:27:12,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:27:12,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:27:12,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:27:12,665 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:27:12,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:27:12,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:27:12,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:27:12,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:27:12,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:27:12,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:27:12,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:27:12,667 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:27:12,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:27:12,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:27:12,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:27:12,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:27:12,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:27:12,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:27:12,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:27:12,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:27:12,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:27:12,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:27:12,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:27:12,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:27:12,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:27:12,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:27:12,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:27:12,902 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:27:12,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-03-20 02:27:12,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6395d9f/f65f2d695c6849cdb4d0e9676267a837/FLAGe56472cf2 [2022-03-20 02:27:13,372 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:27:13,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-03-20 02:27:13,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6395d9f/f65f2d695c6849cdb4d0e9676267a837/FLAGe56472cf2 [2022-03-20 02:27:13,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6395d9f/f65f2d695c6849cdb4d0e9676267a837 [2022-03-20 02:27:13,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:27:13,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:27:13,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:27:13,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:27:13,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:27:13,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:27:13" (1/1) ... [2022-03-20 02:27:13,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce849d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:13, skipping insertion in model container [2022-03-20 02:27:13,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:27:13" (1/1) ... [2022-03-20 02:27:13,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:27:13,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:27:13,980 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/cdaudio_simpl1.cil-1.c[2074,2087] [2022-03-20 02:27:14,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:27:14,116 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:27:14,128 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/cdaudio_simpl1.cil-1.c[2074,2087] [2022-03-20 02:27:14,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:27:14,187 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:27:14,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14 WrapperNode [2022-03-20 02:27:14,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:27:14,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:27:14,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:27:14,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:27:14,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:27:14,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:27:14,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:27:14,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:27:14,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (1/1) ... [2022-03-20 02:27:14,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:27:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:27:14,315 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) [2022-03-20 02:27:14,327 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 [2022-03-20 02:27:14,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:27:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:27:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:27:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2022-03-20 02:27:14,355 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2022-03-20 02:27:14,356 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-03-20 02:27:14,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-20 02:27:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:27:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:27:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-03-20 02:27:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-20 02:27:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-20 02:27:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:27:14,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:27:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:27:14,602 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:27:14,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:27:14,759 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:14,844 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-03-20 02:27:14,844 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-03-20 02:27:14,848 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:14,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-03-20 02:27:14,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-03-20 02:27:14,910 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:14,929 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-20 02:27:14,929 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-20 02:27:14,972 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:14,998 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-03-20 02:27:14,998 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2022-03-20 02:27:14,998 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-03-20 02:27:15,002 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:15,144 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-03-20 02:27:15,144 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-03-20 02:27:15,145 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:15,168 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-03-20 02:27:15,169 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-03-20 02:27:15,194 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:15,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-03-20 02:27:15,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-03-20 02:27:15,213 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:15,337 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-03-20 02:27:15,338 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-03-20 02:27:15,347 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:27:15,350 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:27:15,350 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:27:15,368 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:27:15,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:27:15,381 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:27:15,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:27:15 BoogieIcfgContainer [2022-03-20 02:27:15,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:27:15,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:27:15,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:27:15,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:27:15,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:27:13" (1/3) ... [2022-03-20 02:27:15,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f8fe9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:27:15, skipping insertion in model container [2022-03-20 02:27:15,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:27:14" (2/3) ... [2022-03-20 02:27:15,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f8fe9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:27:15, skipping insertion in model container [2022-03-20 02:27:15,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:27:15" (3/3) ... [2022-03-20 02:27:15,392 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-03-20 02:27:15,395 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:27:15,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:27:15,426 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:27:15,431 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 02:27:15,431 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:27:15,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 383 states have (on average 1.4882506527415145) internal successors, (570), 404 states have internal predecessors, (570), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2022-03-20 02:27:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-20 02:27:15,461 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:15,462 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:15,462 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1971492104, now seen corresponding path program 1 times [2022-03-20 02:27:15,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:15,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915096865] [2022-03-20 02:27:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:15,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:15,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:15,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915096865] [2022-03-20 02:27:15,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915096865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:15,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:15,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:27:15,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636669237] [2022-03-20 02:27:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:15,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:27:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:27:15,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:27:15,854 INFO L87 Difference]: Start difference. First operand has 517 states, 383 states have (on average 1.4882506527415145) internal successors, (570), 404 states have internal predecessors, (570), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 02:27:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:17,749 INFO L93 Difference]: Finished difference Result 1047 states and 1683 transitions. [2022-03-20 02:27:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:27:17,751 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), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-03-20 02:27:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:17,762 INFO L225 Difference]: With dead ends: 1047 [2022-03-20 02:27:17,762 INFO L226 Difference]: Without dead ends: 665 [2022-03-20 02:27:17,766 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:17,768 INFO L913 BasicCegarLoop]: 741 mSDtfsCounter, 399 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:17,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 1013 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:27:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-03-20 02:27:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2022-03-20 02:27:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-03-20 02:27:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2022-03-20 02:27:17,836 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2022-03-20 02:27:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:17,836 INFO L478 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2022-03-20 02:27:17,836 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), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 02:27:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2022-03-20 02:27:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-20 02:27:17,837 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:17,837 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:17,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:27:17,837 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1335659000, now seen corresponding path program 1 times [2022-03-20 02:27:17,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:17,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175047560] [2022-03-20 02:27:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:17,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:17,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:17,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175047560] [2022-03-20 02:27:17,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175047560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:17,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:17,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:27:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228741021] [2022-03-20 02:27:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:17,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:27:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:27:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:17,979 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:19,271 INFO L93 Difference]: Finished difference Result 967 states and 1429 transitions. [2022-03-20 02:27:19,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:27:19,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-03-20 02:27:19,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:19,277 INFO L225 Difference]: With dead ends: 967 [2022-03-20 02:27:19,277 INFO L226 Difference]: Without dead ends: 846 [2022-03-20 02:27:19,278 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:19,278 INFO L913 BasicCegarLoop]: 841 mSDtfsCounter, 1891 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:19,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 1013 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:27:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-03-20 02:27:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2022-03-20 02:27:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 502 states have (on average 1.408366533864542) internal successors, (707), 510 states have internal predecessors, (707), 112 states have call successors, (112), 40 states have call predecessors, (112), 49 states have return successors, (145), 119 states have call predecessors, (145), 99 states have call successors, (145) [2022-03-20 02:27:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2022-03-20 02:27:19,331 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2022-03-20 02:27:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:19,332 INFO L478 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2022-03-20 02:27:19,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2022-03-20 02:27:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 02:27:19,333 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:19,333 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:19,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:27:19,333 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:19,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2015725837, now seen corresponding path program 1 times [2022-03-20 02:27:19,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:19,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294974177] [2022-03-20 02:27:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:19,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:19,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294974177] [2022-03-20 02:27:19,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294974177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:19,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:19,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:27:19,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378792047] [2022-03-20 02:27:19,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:19,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:27:19,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:19,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:27:19,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:19,509 INFO L87 Difference]: Start difference. First operand 664 states and 964 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:21,268 INFO L93 Difference]: Finished difference Result 1148 states and 1650 transitions. [2022-03-20 02:27:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:27:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-03-20 02:27:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:21,273 INFO L225 Difference]: With dead ends: 1148 [2022-03-20 02:27:21,274 INFO L226 Difference]: Without dead ends: 970 [2022-03-20 02:27:21,278 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:21,281 INFO L913 BasicCegarLoop]: 725 mSDtfsCounter, 1121 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:21,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 886 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:27:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-03-20 02:27:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2022-03-20 02:27:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 611 states have (on average 1.4042553191489362) internal successors, (858), 615 states have internal predecessors, (858), 114 states have call successors, (114), 46 states have call predecessors, (114), 63 states have return successors, (163), 130 states have call predecessors, (163), 104 states have call successors, (163) [2022-03-20 02:27:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2022-03-20 02:27:21,349 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2022-03-20 02:27:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:21,349 INFO L478 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2022-03-20 02:27:21,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:21,350 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2022-03-20 02:27:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-20 02:27:21,355 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:21,356 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:21,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:27:21,356 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash -994008456, now seen corresponding path program 1 times [2022-03-20 02:27:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554112223] [2022-03-20 02:27:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:21,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:21,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:21,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554112223] [2022-03-20 02:27:21,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554112223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:21,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:21,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:27:21,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411283007] [2022-03-20 02:27:21,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:21,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:27:21,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:27:21,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:21,485 INFO L87 Difference]: Start difference. First operand 789 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:23,242 INFO L93 Difference]: Finished difference Result 1630 states and 2449 transitions. [2022-03-20 02:27:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:27:23,243 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), 2 states have call successors, (7), 5 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 31 [2022-03-20 02:27:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:23,248 INFO L225 Difference]: With dead ends: 1630 [2022-03-20 02:27:23,248 INFO L226 Difference]: Without dead ends: 1344 [2022-03-20 02:27:23,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:23,256 INFO L913 BasicCegarLoop]: 1009 mSDtfsCounter, 1473 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:23,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 1265 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:27:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-03-20 02:27:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2022-03-20 02:27:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 708 states have (on average 1.4138418079096045) internal successors, (1001), 711 states have internal predecessors, (1001), 127 states have call successors, (127), 54 states have call predecessors, (127), 71 states have return successors, (220), 144 states have call predecessors, (220), 117 states have call successors, (220) [2022-03-20 02:27:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2022-03-20 02:27:23,307 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2022-03-20 02:27:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:23,307 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2022-03-20 02:27:23,308 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), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2022-03-20 02:27:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-20 02:27:23,309 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:23,309 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:23,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:27:23,310 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash -987884657, now seen corresponding path program 1 times [2022-03-20 02:27:23,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:23,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939510578] [2022-03-20 02:27:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:23,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:23,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939510578] [2022-03-20 02:27:23,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939510578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:23,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:23,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 02:27:23,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776302486] [2022-03-20 02:27:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:23,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-20 02:27:23,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-20 02:27:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:27:23,483 INFO L87 Difference]: Start difference. First operand 907 states and 1348 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-20 02:27:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:25,169 INFO L93 Difference]: Finished difference Result 1632 states and 2483 transitions. [2022-03-20 02:27:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:27:25,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-03-20 02:27:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:25,174 INFO L225 Difference]: With dead ends: 1632 [2022-03-20 02:27:25,174 INFO L226 Difference]: Without dead ends: 1046 [2022-03-20 02:27:25,176 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:27:25,178 INFO L913 BasicCegarLoop]: 737 mSDtfsCounter, 2784 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2790 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 990 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:25,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2790 Valid, 1026 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [990 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:27:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-03-20 02:27:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2022-03-20 02:27:25,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 649 states have (on average 1.399075500770416) internal successors, (908), 653 states have internal predecessors, (908), 118 states have call successors, (118), 50 states have call predecessors, (118), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2022-03-20 02:27:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2022-03-20 02:27:25,221 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2022-03-20 02:27:25,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:25,222 INFO L478 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2022-03-20 02:27:25,222 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-20 02:27:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2022-03-20 02:27:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-20 02:27:25,224 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:25,224 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:25,224 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:27:25,224 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:25,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:25,224 INFO L85 PathProgramCache]: Analyzing trace with hash 450252455, now seen corresponding path program 1 times [2022-03-20 02:27:25,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:25,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987628528] [2022-03-20 02:27:25,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:25,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:25,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:25,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987628528] [2022-03-20 02:27:25,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987628528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:25,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:25,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:27:25,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118361103] [2022-03-20 02:27:25,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:25,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:27:25,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:25,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:27:25,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:25,313 INFO L87 Difference]: Start difference. First operand 835 states and 1203 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:26,898 INFO L93 Difference]: Finished difference Result 965 states and 1425 transitions. [2022-03-20 02:27:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:27:26,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-03-20 02:27:26,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:26,926 INFO L225 Difference]: With dead ends: 965 [2022-03-20 02:27:26,926 INFO L226 Difference]: Without dead ends: 961 [2022-03-20 02:27:26,927 INFO L912 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 [2022-03-20 02:27:26,928 INFO L913 BasicCegarLoop]: 713 mSDtfsCounter, 407 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:26,928 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 983 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:27:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-03-20 02:27:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2022-03-20 02:27:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 649 states have (on average 1.3959938366718028) internal successors, (906), 652 states have internal predecessors, (906), 117 states have call successors, (117), 50 states have call predecessors, (117), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2022-03-20 02:27:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2022-03-20 02:27:27,000 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2022-03-20 02:27:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:27,001 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2022-03-20 02:27:27,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2022-03-20 02:27:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 02:27:27,002 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:27,002 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:27,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:27:27,002 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:27,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:27,003 INFO L85 PathProgramCache]: Analyzing trace with hash -783054808, now seen corresponding path program 1 times [2022-03-20 02:27:27,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:27,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714417320] [2022-03-20 02:27:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:27,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:27,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:27,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714417320] [2022-03-20 02:27:27,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714417320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:27,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:27,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:27:27,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110055748] [2022-03-20 02:27:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:27,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:27:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:27:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:27:27,141 INFO L87 Difference]: Start difference. First operand 834 states and 1200 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:28,975 INFO L93 Difference]: Finished difference Result 1417 states and 2024 transitions. [2022-03-20 02:27:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:27:28,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-03-20 02:27:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:28,979 INFO L225 Difference]: With dead ends: 1417 [2022-03-20 02:27:28,979 INFO L226 Difference]: Without dead ends: 999 [2022-03-20 02:27:28,980 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:27:28,981 INFO L913 BasicCegarLoop]: 821 mSDtfsCounter, 764 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:28,981 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 1253 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:27:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-03-20 02:27:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2022-03-20 02:27:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 571 states have (on average 1.3870402802101576) internal successors, (792), 575 states have internal predecessors, (792), 106 states have call successors, (106), 45 states have call predecessors, (106), 58 states have return successors, (131), 118 states have call predecessors, (131), 97 states have call successors, (131) [2022-03-20 02:27:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2022-03-20 02:27:29,018 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2022-03-20 02:27:29,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:29,018 INFO L478 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2022-03-20 02:27:29,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2022-03-20 02:27:29,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-20 02:27:29,020 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:29,020 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:29,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:27:29,020 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:29,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1815790808, now seen corresponding path program 1 times [2022-03-20 02:27:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:29,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307915259] [2022-03-20 02:27:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:29,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:29,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307915259] [2022-03-20 02:27:29,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307915259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:29,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:29,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:27:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441708260] [2022-03-20 02:27:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:29,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:27:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:27:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:27:29,130 INFO L87 Difference]: Start difference. First operand 736 states and 1029 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, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:30,300 INFO L93 Difference]: Finished difference Result 979 states and 1409 transitions. [2022-03-20 02:27:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:27:30,300 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, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-03-20 02:27:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:30,304 INFO L225 Difference]: With dead ends: 979 [2022-03-20 02:27:30,304 INFO L226 Difference]: Without dead ends: 959 [2022-03-20 02:27:30,304 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:30,305 INFO L913 BasicCegarLoop]: 672 mSDtfsCounter, 1483 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:30,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 772 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:27:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-03-20 02:27:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2022-03-20 02:27:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3983193277310924) internal successors, (832), 608 states have internal predecessors, (832), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2022-03-20 02:27:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2022-03-20 02:27:30,354 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2022-03-20 02:27:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:30,356 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2022-03-20 02:27:30,356 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, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:27:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2022-03-20 02:27:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-20 02:27:30,358 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:30,358 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:30,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:27:30,358 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:30,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 737122156, now seen corresponding path program 1 times [2022-03-20 02:27:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:30,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081581832] [2022-03-20 02:27:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-03-20 02:27:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:30,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:30,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081581832] [2022-03-20 02:27:30,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081581832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:30,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:30,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:27:30,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055271267] [2022-03-20 02:27:30,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:30,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:27:30,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:27:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:27:30,470 INFO L87 Difference]: Start difference. First operand 762 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:27:32,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:32,039 INFO L93 Difference]: Finished difference Result 1167 states and 1671 transitions. [2022-03-20 02:27:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:27:32,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-03-20 02:27:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:32,044 INFO L225 Difference]: With dead ends: 1167 [2022-03-20 02:27:32,044 INFO L226 Difference]: Without dead ends: 942 [2022-03-20 02:27:32,046 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:27:32,046 INFO L913 BasicCegarLoop]: 791 mSDtfsCounter, 921 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:32,047 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 1383 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:27:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-03-20 02:27:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2022-03-20 02:27:32,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3966386554621848) internal successors, (831), 608 states have internal predecessors, (831), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2022-03-20 02:27:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2022-03-20 02:27:32,132 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2022-03-20 02:27:32,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:32,133 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2022-03-20 02:27:32,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:27:32,133 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2022-03-20 02:27:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-20 02:27:32,136 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:32,136 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:32,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:27:32,136 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash 8107196, now seen corresponding path program 1 times [2022-03-20 02:27:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:32,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144416317] [2022-03-20 02:27:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:32,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:32,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-03-20 02:27:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:32,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:32,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144416317] [2022-03-20 02:27:32,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144416317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:32,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:32,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:27:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99607032] [2022-03-20 02:27:32,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:32,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:27:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:27:32,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:27:32,255 INFO L87 Difference]: Start difference. First operand 762 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:27:33,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:33,616 INFO L93 Difference]: Finished difference Result 964 states and 1383 transitions. [2022-03-20 02:27:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:27:33,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-03-20 02:27:33,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:33,620 INFO L225 Difference]: With dead ends: 964 [2022-03-20 02:27:33,620 INFO L226 Difference]: Without dead ends: 897 [2022-03-20 02:27:33,620 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:27:33,621 INFO L913 BasicCegarLoop]: 667 mSDtfsCounter, 1147 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:33,621 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 1117 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 02:27:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-03-20 02:27:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2022-03-20 02:27:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 588 states have (on average 1.3979591836734695) internal successors, (822), 601 states have internal predecessors, (822), 106 states have call successors, (106), 46 states have call predecessors, (106), 56 states have return successors, (122), 108 states have call predecessors, (122), 98 states have call successors, (122) [2022-03-20 02:27:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2022-03-20 02:27:33,664 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2022-03-20 02:27:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:33,665 INFO L478 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2022-03-20 02:27:33,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-20 02:27:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2022-03-20 02:27:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 02:27:33,666 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:33,666 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:33,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:27:33,666 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:33,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash -776493065, now seen corresponding path program 1 times [2022-03-20 02:27:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:33,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455137045] [2022-03-20 02:27:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:33,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:33,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:33,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455137045] [2022-03-20 02:27:33,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455137045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:33,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:33,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:27:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123657792] [2022-03-20 02:27:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:33,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:27:33,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:33,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:27:33,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:27:33,868 INFO L87 Difference]: Start difference. First operand 751 states and 1050 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:27:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:36,210 INFO L93 Difference]: Finished difference Result 1067 states and 1515 transitions. [2022-03-20 02:27:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 02:27:36,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 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 48 [2022-03-20 02:27:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:36,213 INFO L225 Difference]: With dead ends: 1067 [2022-03-20 02:27:36,213 INFO L226 Difference]: Without dead ends: 1006 [2022-03-20 02:27:36,214 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-20 02:27:36,214 INFO L913 BasicCegarLoop]: 768 mSDtfsCounter, 1804 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 3183 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 3767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 3183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:36,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1832 Valid, 1794 Invalid, 3767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 3183 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:27:36,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-03-20 02:27:36,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2022-03-20 02:27:36,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3964686998394864) internal successors, (870), 635 states have internal predecessors, (870), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-20 02:27:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2022-03-20 02:27:36,269 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2022-03-20 02:27:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:36,270 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2022-03-20 02:27:36,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:27:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2022-03-20 02:27:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:27:36,271 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:36,271 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:36,272 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:27:36,272 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1944299410, now seen corresponding path program 1 times [2022-03-20 02:27:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:36,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3672629] [2022-03-20 02:27:36,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:36,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:36,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3672629] [2022-03-20 02:27:36,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3672629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:36,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:36,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:27:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745122160] [2022-03-20 02:27:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:36,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:27:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:27:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:27:36,446 INFO L87 Difference]: Start difference. First operand 794 states and 1111 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:27:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:37,846 INFO L93 Difference]: Finished difference Result 952 states and 1368 transitions. [2022-03-20 02:27:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:27:37,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 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 50 [2022-03-20 02:27:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:37,850 INFO L225 Difference]: With dead ends: 952 [2022-03-20 02:27:37,850 INFO L226 Difference]: Without dead ends: 924 [2022-03-20 02:27:37,850 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:27:37,852 INFO L913 BasicCegarLoop]: 652 mSDtfsCounter, 2169 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:37,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 1424 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:27:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-20 02:27:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 797. [2022-03-20 02:27:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 626 states have (on average 1.3961661341853036) internal successors, (874), 638 states have internal predecessors, (874), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-20 02:27:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2022-03-20 02:27:37,985 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2022-03-20 02:27:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:37,985 INFO L478 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2022-03-20 02:27:37,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:27:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2022-03-20 02:27:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:27:38,001 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:38,001 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:38,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:27:38,001 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -49845296, now seen corresponding path program 1 times [2022-03-20 02:27:38,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:38,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614487881] [2022-03-20 02:27:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:38,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:38,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:38,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614487881] [2022-03-20 02:27:38,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614487881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:38,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:38,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:27:38,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189276966] [2022-03-20 02:27:38,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:38,207 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:27:38,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:38,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:27:38,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:27:38,207 INFO L87 Difference]: Start difference. First operand 797 states and 1115 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:27:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:39,610 INFO L93 Difference]: Finished difference Result 978 states and 1402 transitions. [2022-03-20 02:27:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:27:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 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 [2022-03-20 02:27:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:39,614 INFO L225 Difference]: With dead ends: 978 [2022-03-20 02:27:39,615 INFO L226 Difference]: Without dead ends: 914 [2022-03-20 02:27:39,615 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:27:39,617 INFO L913 BasicCegarLoop]: 652 mSDtfsCounter, 2233 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:39,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 1507 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:27:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-03-20 02:27:39,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2022-03-20 02:27:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.391304347826087) internal successors, (864), 633 states have internal predecessors, (864), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-20 02:27:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2022-03-20 02:27:39,696 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2022-03-20 02:27:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:39,697 INFO L478 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2022-03-20 02:27:39,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-20 02:27:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2022-03-20 02:27:39,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:27:39,699 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:39,699 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:39,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:27:39,699 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:39,699 INFO L85 PathProgramCache]: Analyzing trace with hash 96847506, now seen corresponding path program 1 times [2022-03-20 02:27:39,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:39,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110318129] [2022-03-20 02:27:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:39,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:39,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:39,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110318129] [2022-03-20 02:27:39,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110318129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:39,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:39,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:27:39,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88472566] [2022-03-20 02:27:39,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:39,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:27:39,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:27:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:27:39,839 INFO L87 Difference]: Start difference. First operand 792 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:41,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:41,027 INFO L93 Difference]: Finished difference Result 1090 states and 1555 transitions. [2022-03-20 02:27:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:27:41,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 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 50 [2022-03-20 02:27:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:41,031 INFO L225 Difference]: With dead ends: 1090 [2022-03-20 02:27:41,031 INFO L226 Difference]: Without dead ends: 1074 [2022-03-20 02:27:41,031 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:41,032 INFO L913 BasicCegarLoop]: 799 mSDtfsCounter, 1242 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:41,032 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 1361 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:27:41,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-20 02:27:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2022-03-20 02:27:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3725490196078431) internal successors, (910), 677 states have internal predecessors, (910), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2022-03-20 02:27:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2022-03-20 02:27:41,094 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2022-03-20 02:27:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:41,094 INFO L478 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2022-03-20 02:27:41,094 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2022-03-20 02:27:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 02:27:41,096 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:41,096 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:41,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:27:41,096 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:41,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:41,096 INFO L85 PathProgramCache]: Analyzing trace with hash 637282241, now seen corresponding path program 1 times [2022-03-20 02:27:41,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:41,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266269375] [2022-03-20 02:27:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:41,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:27:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266269375] [2022-03-20 02:27:41,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266269375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:41,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:41,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 02:27:41,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248868001] [2022-03-20 02:27:41,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:41,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-20 02:27:41,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-20 02:27:41,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:27:41,229 INFO L87 Difference]: Start difference. First operand 848 states and 1165 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:27:42,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:42,831 INFO L93 Difference]: Finished difference Result 996 states and 1410 transitions. [2022-03-20 02:27:42,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:27:42,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-03-20 02:27:42,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:42,835 INFO L225 Difference]: With dead ends: 996 [2022-03-20 02:27:42,835 INFO L226 Difference]: Without dead ends: 991 [2022-03-20 02:27:42,835 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:27:42,835 INFO L913 BasicCegarLoop]: 697 mSDtfsCounter, 1522 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:42,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 1396 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:27:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-03-20 02:27:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 867. [2022-03-20 02:27:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 679 states have (on average 1.369661266568483) internal successors, (930), 694 states have internal predecessors, (930), 113 states have call successors, (113), 52 states have call predecessors, (113), 74 states have return successors, (145), 128 states have call predecessors, (145), 105 states have call successors, (145) [2022-03-20 02:27:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1188 transitions. [2022-03-20 02:27:42,891 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1188 transitions. Word has length 52 [2022-03-20 02:27:42,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:42,892 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1188 transitions. [2022-03-20 02:27:42,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:27:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1188 transitions. [2022-03-20 02:27:42,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-20 02:27:42,893 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:42,893 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:42,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:27:42,894 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:42,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash 708397377, now seen corresponding path program 1 times [2022-03-20 02:27:42,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:42,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654971932] [2022-03-20 02:27:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:42,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-03-20 02:27:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-03-20 02:27:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:43,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:43,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654971932] [2022-03-20 02:27:43,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654971932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:43,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:43,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:27:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997023210] [2022-03-20 02:27:43,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:43,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:27:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:27:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:27:43,006 INFO L87 Difference]: Start difference. First operand 867 states and 1188 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:44,935 INFO L93 Difference]: Finished difference Result 1203 states and 1692 transitions. [2022-03-20 02:27:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:27:44,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-03-20 02:27:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:44,941 INFO L225 Difference]: With dead ends: 1203 [2022-03-20 02:27:44,941 INFO L226 Difference]: Without dead ends: 956 [2022-03-20 02:27:44,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:27:44,943 INFO L913 BasicCegarLoop]: 641 mSDtfsCounter, 685 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:44,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 1195 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:27:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-03-20 02:27:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 836. [2022-03-20 02:27:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 655 states have (on average 1.369465648854962) internal successors, (897), 668 states have internal predecessors, (897), 111 states have call successors, (111), 51 states have call predecessors, (111), 69 states have return successors, (140), 123 states have call predecessors, (140), 104 states have call successors, (140) [2022-03-20 02:27:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2022-03-20 02:27:45,083 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 54 [2022-03-20 02:27:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:45,083 INFO L478 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2022-03-20 02:27:45,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2022-03-20 02:27:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 02:27:45,085 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:45,085 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:45,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:27:45,086 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:45,086 INFO L85 PathProgramCache]: Analyzing trace with hash -848829632, now seen corresponding path program 1 times [2022-03-20 02:27:45,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:45,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701843795] [2022-03-20 02:27:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:45,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:45,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:45,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701843795] [2022-03-20 02:27:45,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701843795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:45,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:45,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:27:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597930243] [2022-03-20 02:27:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:45,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:27:45,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:45,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:27:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:27:45,240 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:47,049 INFO L93 Difference]: Finished difference Result 971 states and 1378 transitions. [2022-03-20 02:27:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:27:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 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 [2022-03-20 02:27:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:47,052 INFO L225 Difference]: With dead ends: 971 [2022-03-20 02:27:47,052 INFO L226 Difference]: Without dead ends: 967 [2022-03-20 02:27:47,053 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:27:47,053 INFO L913 BasicCegarLoop]: 706 mSDtfsCounter, 720 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 3917 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 4196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 3917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:47,053 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2378 Invalid, 4196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3917 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:27:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-03-20 02:27:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2022-03-20 02:27:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 661 states have (on average 1.367624810892587) internal successors, (904), 675 states have internal predecessors, (904), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2022-03-20 02:27:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1157 transitions. [2022-03-20 02:27:47,106 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1157 transitions. Word has length 51 [2022-03-20 02:27:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:47,107 INFO L478 AbstractCegarLoop]: Abstraction has 843 states and 1157 transitions. [2022-03-20 02:27:47,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1157 transitions. [2022-03-20 02:27:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 02:27:47,108 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:47,108 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:47,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:27:47,109 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:47,109 INFO L85 PathProgramCache]: Analyzing trace with hash -849106462, now seen corresponding path program 1 times [2022-03-20 02:27:47,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:47,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408655352] [2022-03-20 02:27:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:47,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:47,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:47,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408655352] [2022-03-20 02:27:47,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408655352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:47,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:47,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:27:47,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291652723] [2022-03-20 02:27:47,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:47,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:27:47,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:47,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:27:47,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:27:47,264 INFO L87 Difference]: Start difference. First operand 843 states and 1157 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:49,245 INFO L93 Difference]: Finished difference Result 986 states and 1394 transitions. [2022-03-20 02:27:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:27:49,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 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 [2022-03-20 02:27:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:49,249 INFO L225 Difference]: With dead ends: 986 [2022-03-20 02:27:49,249 INFO L226 Difference]: Without dead ends: 962 [2022-03-20 02:27:49,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:27:49,250 INFO L913 BasicCegarLoop]: 708 mSDtfsCounter, 722 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 4123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:49,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 2457 Invalid, 4123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:27:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-20 02:27:49,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 842. [2022-03-20 02:27:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3666666666666667) internal successors, (902), 674 states have internal predecessors, (902), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2022-03-20 02:27:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2022-03-20 02:27:49,305 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2022-03-20 02:27:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:49,306 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2022-03-20 02:27:49,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-20 02:27:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2022-03-20 02:27:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:27:49,307 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:49,307 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:49,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:27:49,308 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1275498861, now seen corresponding path program 1 times [2022-03-20 02:27:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:49,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087529735] [2022-03-20 02:27:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:49,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:27:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:49,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:49,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087529735] [2022-03-20 02:27:49,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087529735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:49,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:49,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:27:49,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761524065] [2022-03-20 02:27:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:49,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:27:49,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:49,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:27:49,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:27:49,521 INFO L87 Difference]: Start difference. First operand 842 states and 1155 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:27:51,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:51,461 INFO L93 Difference]: Finished difference Result 974 states and 1378 transitions. [2022-03-20 02:27:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:27:51,461 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2022-03-20 02:27:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:51,465 INFO L225 Difference]: With dead ends: 974 [2022-03-20 02:27:51,465 INFO L226 Difference]: Without dead ends: 968 [2022-03-20 02:27:51,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:27:51,467 INFO L913 BasicCegarLoop]: 659 mSDtfsCounter, 1241 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:51,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 1409 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:27:51,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-20 02:27:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2022-03-20 02:27:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3651515151515152) internal successors, (901), 674 states have internal predecessors, (901), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2022-03-20 02:27:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2022-03-20 02:27:51,531 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2022-03-20 02:27:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:51,531 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2022-03-20 02:27:51,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:27:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2022-03-20 02:27:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 02:27:51,535 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:51,535 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:51,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:27:51,535 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:51,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:51,536 INFO L85 PathProgramCache]: Analyzing trace with hash -204304198, now seen corresponding path program 1 times [2022-03-20 02:27:51,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:51,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301467389] [2022-03-20 02:27:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:27:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:51,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:51,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301467389] [2022-03-20 02:27:51,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301467389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:51,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:51,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 02:27:51,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479921352] [2022-03-20 02:27:51,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:51,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-20 02:27:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-20 02:27:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:27:51,697 INFO L87 Difference]: Start difference. First operand 842 states and 1154 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:27:53,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:53,739 INFO L93 Difference]: Finished difference Result 979 states and 1383 transitions. [2022-03-20 02:27:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:27:53,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 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 52 [2022-03-20 02:27:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:53,759 INFO L225 Difference]: With dead ends: 979 [2022-03-20 02:27:53,759 INFO L226 Difference]: Without dead ends: 943 [2022-03-20 02:27:53,760 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:27:53,760 INFO L913 BasicCegarLoop]: 659 mSDtfsCounter, 1216 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:53,761 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 1285 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:27:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-03-20 02:27:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2022-03-20 02:27:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3746081504702194) internal successors, (877), 651 states have internal predecessors, (877), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2022-03-20 02:27:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2022-03-20 02:27:53,828 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2022-03-20 02:27:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:53,828 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2022-03-20 02:27:53,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:27:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2022-03-20 02:27:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-20 02:27:53,830 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:53,830 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:53,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:27:53,830 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1517780378, now seen corresponding path program 1 times [2022-03-20 02:27:53,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:53,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877549933] [2022-03-20 02:27:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:27:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:54,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:54,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877549933] [2022-03-20 02:27:54,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877549933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:54,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:54,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:27:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133174566] [2022-03-20 02:27:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:54,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:27:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:27:54,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:27:54,061 INFO L87 Difference]: Start difference. First operand 815 states and 1124 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:27:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:55,498 INFO L93 Difference]: Finished difference Result 945 states and 1345 transitions. [2022-03-20 02:27:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:27:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2022-03-20 02:27:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:55,502 INFO L225 Difference]: With dead ends: 945 [2022-03-20 02:27:55,502 INFO L226 Difference]: Without dead ends: 939 [2022-03-20 02:27:55,503 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:27:55,503 INFO L913 BasicCegarLoop]: 630 mSDtfsCounter, 1933 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:55,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1959 Valid, 1183 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:27:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-20 02:27:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2022-03-20 02:27:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3730407523510972) internal successors, (876), 651 states have internal predecessors, (876), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2022-03-20 02:27:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2022-03-20 02:27:55,569 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2022-03-20 02:27:55,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:55,569 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2022-03-20 02:27:55,569 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:27:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2022-03-20 02:27:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 02:27:55,571 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:55,571 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:55,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:27:55,572 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:55,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash 505594524, now seen corresponding path program 1 times [2022-03-20 02:27:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:55,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672206171] [2022-03-20 02:27:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:27:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:55,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672206171] [2022-03-20 02:27:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672206171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:55,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:55,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:27:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518597352] [2022-03-20 02:27:55,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:55,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:27:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:27:55,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:27:55,778 INFO L87 Difference]: Start difference. First operand 815 states and 1123 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 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) [2022-03-20 02:27:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:27:58,419 INFO L93 Difference]: Finished difference Result 966 states and 1372 transitions. [2022-03-20 02:27:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 02:27:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 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 55 [2022-03-20 02:27:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:27:58,423 INFO L225 Difference]: With dead ends: 966 [2022-03-20 02:27:58,423 INFO L226 Difference]: Without dead ends: 926 [2022-03-20 02:27:58,424 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:27:58,424 INFO L913 BasicCegarLoop]: 678 mSDtfsCounter, 402 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 4990 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 5158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:27:58,424 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 2684 Invalid, 5158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4990 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:27:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-03-20 02:27:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2022-03-20 02:27:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 644 states have internal predecessors, (856), 107 states have call successors, (107), 49 states have call predecessors, (107), 67 states have return successors, (136), 119 states have call predecessors, (136), 100 states have call successors, (136) [2022-03-20 02:27:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2022-03-20 02:27:58,485 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2022-03-20 02:27:58,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:27:58,485 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2022-03-20 02:27:58,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 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) [2022-03-20 02:27:58,486 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2022-03-20 02:27:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 02:27:58,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:27:58,487 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:27:58,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:27:58,487 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:27:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:27:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1791275328, now seen corresponding path program 1 times [2022-03-20 02:27:58,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:27:58,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907898980] [2022-03-20 02:27:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:27:58,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:27:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:27:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:27:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:27:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-20 02:27:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:27:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:27:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:27:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:27:58,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:27:58,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907898980] [2022-03-20 02:27:58,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907898980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:27:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:27:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:27:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65883203] [2022-03-20 02:27:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:27:58,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:27:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:27:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:27:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:27:58,713 INFO L87 Difference]: Start difference. First operand 806 states and 1099 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:01,553 INFO L93 Difference]: Finished difference Result 942 states and 1326 transitions. [2022-03-20 02:28:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:28:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-03-20 02:28:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:01,557 INFO L225 Difference]: With dead ends: 942 [2022-03-20 02:28:01,557 INFO L226 Difference]: Without dead ends: 924 [2022-03-20 02:28:01,557 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:01,558 INFO L913 BasicCegarLoop]: 673 mSDtfsCounter, 351 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 5511 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 5651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:01,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2806 Invalid, 5651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5511 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:28:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-20 02:28:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2022-03-20 02:28:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 643 states have internal predecessors, (854), 106 states have call successors, (106), 49 states have call predecessors, (106), 67 states have return successors, (135), 118 states have call predecessors, (135), 99 states have call successors, (135) [2022-03-20 02:28:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2022-03-20 02:28:01,644 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2022-03-20 02:28:01,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:01,644 INFO L478 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2022-03-20 02:28:01,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2022-03-20 02:28:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 02:28:01,647 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:01,647 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:01,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:28:01,647 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:01,647 INFO L85 PathProgramCache]: Analyzing trace with hash 388427064, now seen corresponding path program 1 times [2022-03-20 02:28:01,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:01,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901984979] [2022-03-20 02:28:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:01,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-20 02:28:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901984979] [2022-03-20 02:28:01,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901984979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:01,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:01,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:28:01,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137610521] [2022-03-20 02:28:01,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:01,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:28:01,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:01,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:28:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:28:01,854 INFO L87 Difference]: Start difference. First operand 804 states and 1095 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:03,847 INFO L93 Difference]: Finished difference Result 937 states and 1319 transitions. [2022-03-20 02:28:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:28:03,847 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2022-03-20 02:28:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:03,851 INFO L225 Difference]: With dead ends: 937 [2022-03-20 02:28:03,851 INFO L226 Difference]: Without dead ends: 919 [2022-03-20 02:28:03,852 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:03,853 INFO L913 BasicCegarLoop]: 657 mSDtfsCounter, 988 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 4646 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 4646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:03,853 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 2653 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 4646 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:28:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-03-20 02:28:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2022-03-20 02:28:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.3556618819776713) internal successors, (850), 640 states have internal predecessors, (850), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2022-03-20 02:28:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2022-03-20 02:28:03,934 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2022-03-20 02:28:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:03,934 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2022-03-20 02:28:03,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2022-03-20 02:28:03,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 02:28:03,936 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:03,936 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:03,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:28:03,936 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:03,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:03,936 INFO L85 PathProgramCache]: Analyzing trace with hash 562366210, now seen corresponding path program 1 times [2022-03-20 02:28:03,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:03,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954845556] [2022-03-20 02:28:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:04,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:04,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:04,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:04,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954845556] [2022-03-20 02:28:04,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954845556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:04,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:04,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:28:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780741264] [2022-03-20 02:28:04,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:04,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:28:04,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:04,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:28:04,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:04,065 INFO L87 Difference]: Start difference. First operand 799 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:28:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:05,337 INFO L93 Difference]: Finished difference Result 984 states and 1370 transitions. [2022-03-20 02:28:05,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:28:05,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-03-20 02:28:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:05,344 INFO L225 Difference]: With dead ends: 984 [2022-03-20 02:28:05,344 INFO L226 Difference]: Without dead ends: 941 [2022-03-20 02:28:05,345 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:28:05,346 INFO L913 BasicCegarLoop]: 678 mSDtfsCounter, 1877 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:05,346 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1887 Valid, 1218 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:28:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-03-20 02:28:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2022-03-20 02:28:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.354066985645933) internal successors, (849), 640 states have internal predecessors, (849), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2022-03-20 02:28:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2022-03-20 02:28:05,443 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2022-03-20 02:28:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:05,443 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2022-03-20 02:28:05,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-20 02:28:05,443 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2022-03-20 02:28:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 02:28:05,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:05,445 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:05,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:28:05,445 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:05,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash -514626408, now seen corresponding path program 1 times [2022-03-20 02:28:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:05,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322547082] [2022-03-20 02:28:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:05,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-03-20 02:28:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-03-20 02:28:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:28:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:05,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322547082] [2022-03-20 02:28:05,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322547082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:28:05,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034771492] [2022-03-20 02:28:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:05,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:28:05,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:28:05,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:28:05,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 02:28:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:05,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-20 02:28:05,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:28:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:06,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:28:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:06,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034771492] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:28:06,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:28:06,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 15 [2022-03-20 02:28:06,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353873090] [2022-03-20 02:28:06,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:06,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:28:06,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:06,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:28:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:28:06,341 INFO L87 Difference]: Start difference. First operand 799 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:06,714 INFO L93 Difference]: Finished difference Result 1117 states and 1518 transitions. [2022-03-20 02:28:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:28:06,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2022-03-20 02:28:06,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:06,725 INFO L225 Difference]: With dead ends: 1117 [2022-03-20 02:28:06,725 INFO L226 Difference]: Without dead ends: 953 [2022-03-20 02:28:06,726 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 151 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:06,726 INFO L913 BasicCegarLoop]: 693 mSDtfsCounter, 870 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:06,727 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 1140 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 02:28:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-03-20 02:28:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 837. [2022-03-20 02:28:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 658 states have (on average 1.3541033434650456) internal successors, (891), 671 states have internal predecessors, (891), 108 states have call successors, (108), 51 states have call predecessors, (108), 70 states have return successors, (143), 121 states have call predecessors, (143), 101 states have call successors, (143) [2022-03-20 02:28:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1142 transitions. [2022-03-20 02:28:06,862 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1142 transitions. Word has length 74 [2022-03-20 02:28:06,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:06,863 INFO L478 AbstractCegarLoop]: Abstraction has 837 states and 1142 transitions. [2022-03-20 02:28:06,863 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1142 transitions. [2022-03-20 02:28:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 02:28:06,864 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:06,864 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:06,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 02:28:07,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-20 02:28:07,079 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:07,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash 233977310, now seen corresponding path program 1 times [2022-03-20 02:28:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:07,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132937103] [2022-03-20 02:28:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-20 02:28:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132937103] [2022-03-20 02:28:07,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132937103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:07,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:07,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-20 02:28:07,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841469223] [2022-03-20 02:28:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:07,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-20 02:28:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:07,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-20 02:28:07,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:28:07,435 INFO L87 Difference]: Start difference. First operand 837 states and 1142 transitions. Second operand has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:10,197 INFO L93 Difference]: Finished difference Result 984 states and 1382 transitions. [2022-03-20 02:28:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-20 02:28:10,198 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2022-03-20 02:28:10,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:10,201 INFO L225 Difference]: With dead ends: 984 [2022-03-20 02:28:10,201 INFO L226 Difference]: Without dead ends: 960 [2022-03-20 02:28:10,201 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-20 02:28:10,202 INFO L913 BasicCegarLoop]: 654 mSDtfsCounter, 403 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 6400 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 6573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 6400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:10,202 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 3370 Invalid, 6573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 6400 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:28:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-20 02:28:10,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 835. [2022-03-20 02:28:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 657 states have (on average 1.3531202435312024) internal successors, (889), 670 states have internal predecessors, (889), 107 states have call successors, (107), 51 states have call predecessors, (107), 70 states have return successors, (142), 120 states have call predecessors, (142), 100 states have call successors, (142) [2022-03-20 02:28:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1138 transitions. [2022-03-20 02:28:10,275 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1138 transitions. Word has length 62 [2022-03-20 02:28:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:10,275 INFO L478 AbstractCegarLoop]: Abstraction has 835 states and 1138 transitions. [2022-03-20 02:28:10,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:10,275 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1138 transitions. [2022-03-20 02:28:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 02:28:10,276 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:10,277 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:10,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:28:10,277 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2049298278, now seen corresponding path program 1 times [2022-03-20 02:28:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:10,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391933673] [2022-03-20 02:28:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:10,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:10,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391933673] [2022-03-20 02:28:10,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391933673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:10,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:10,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-20 02:28:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101586158] [2022-03-20 02:28:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:10,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-20 02:28:10,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:10,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-20 02:28:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:28:10,583 INFO L87 Difference]: Start difference. First operand 835 states and 1138 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:13,549 INFO L93 Difference]: Finished difference Result 982 states and 1378 transitions. [2022-03-20 02:28:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-20 02:28:13,549 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2022-03-20 02:28:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:13,553 INFO L225 Difference]: With dead ends: 982 [2022-03-20 02:28:13,553 INFO L226 Difference]: Without dead ends: 956 [2022-03-20 02:28:13,554 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-20 02:28:13,554 INFO L913 BasicCegarLoop]: 633 mSDtfsCounter, 1011 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 6760 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 7181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 6760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:13,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 3425 Invalid, 7181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 6760 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:28:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-03-20 02:28:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 834. [2022-03-20 02:28:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 656 states have (on average 1.3384146341463414) internal successors, (878), 669 states have internal predecessors, (878), 107 states have call successors, (107), 51 states have call predecessors, (107), 70 states have return successors, (142), 120 states have call predecessors, (142), 100 states have call successors, (142) [2022-03-20 02:28:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1127 transitions. [2022-03-20 02:28:13,633 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1127 transitions. Word has length 59 [2022-03-20 02:28:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:13,633 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1127 transitions. [2022-03-20 02:28:13,633 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1127 transitions. [2022-03-20 02:28:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 02:28:13,634 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:13,635 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:13,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:28:13,635 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:13,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:13,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1081135518, now seen corresponding path program 1 times [2022-03-20 02:28:13,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:13,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389301169] [2022-03-20 02:28:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:13,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:13,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:13,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389301169] [2022-03-20 02:28:13,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389301169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:13,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:13,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-20 02:28:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308620749] [2022-03-20 02:28:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:13,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 02:28:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 02:28:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:13,861 INFO L87 Difference]: Start difference. First operand 834 states and 1127 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:16,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:16,518 INFO L93 Difference]: Finished difference Result 971 states and 1352 transitions. [2022-03-20 02:28:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-20 02:28:16,518 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-03-20 02:28:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:16,521 INFO L225 Difference]: With dead ends: 971 [2022-03-20 02:28:16,521 INFO L226 Difference]: Without dead ends: 951 [2022-03-20 02:28:16,522 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-03-20 02:28:16,522 INFO L913 BasicCegarLoop]: 648 mSDtfsCounter, 326 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 6209 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 6345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 6209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:16,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 2966 Invalid, 6345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 6209 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:28:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-03-20 02:28:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 831. [2022-03-20 02:28:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 654 states have (on average 1.337920489296636) internal successors, (875), 667 states have internal predecessors, (875), 106 states have call successors, (106), 51 states have call predecessors, (106), 70 states have return successors, (141), 119 states have call predecessors, (141), 99 states have call successors, (141) [2022-03-20 02:28:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1122 transitions. [2022-03-20 02:28:16,594 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1122 transitions. Word has length 58 [2022-03-20 02:28:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:16,595 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1122 transitions. [2022-03-20 02:28:16,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-20 02:28:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1122 transitions. [2022-03-20 02:28:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 02:28:16,596 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:16,596 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:16,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:28:16,596 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1820752266, now seen corresponding path program 1 times [2022-03-20 02:28:16,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:16,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499583187] [2022-03-20 02:28:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 02:28:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:16,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:16,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499583187] [2022-03-20 02:28:16,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499583187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:16,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:16,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-20 02:28:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393016196] [2022-03-20 02:28:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:16,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 02:28:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 02:28:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:16,807 INFO L87 Difference]: Start difference. First operand 831 states and 1122 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 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) [2022-03-20 02:28:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:18,609 INFO L93 Difference]: Finished difference Result 1004 states and 1384 transitions. [2022-03-20 02:28:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-20 02:28:18,609 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 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 [2022-03-20 02:28:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:18,621 INFO L225 Difference]: With dead ends: 1004 [2022-03-20 02:28:18,621 INFO L226 Difference]: Without dead ends: 936 [2022-03-20 02:28:18,622 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-03-20 02:28:18,622 INFO L913 BasicCegarLoop]: 624 mSDtfsCounter, 1287 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:18,622 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1291 Valid, 2345 Invalid, 4249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:28:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-03-20 02:28:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 819. [2022-03-20 02:28:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 645 states have (on average 1.3333333333333333) internal successors, (860), 658 states have internal predecessors, (860), 103 states have call successors, (103), 51 states have call predecessors, (103), 70 states have return successors, (138), 116 states have call predecessors, (138), 96 states have call successors, (138) [2022-03-20 02:28:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1101 transitions. [2022-03-20 02:28:18,705 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1101 transitions. Word has length 59 [2022-03-20 02:28:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:18,705 INFO L478 AbstractCegarLoop]: Abstraction has 819 states and 1101 transitions. [2022-03-20 02:28:18,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 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) [2022-03-20 02:28:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1101 transitions. [2022-03-20 02:28:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 02:28:18,706 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:18,706 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:18,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:28:18,707 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:18,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash 600816654, now seen corresponding path program 1 times [2022-03-20 02:28:18,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:18,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147412155] [2022-03-20 02:28:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:18,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 02:28:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:18,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:18,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147412155] [2022-03-20 02:28:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147412155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:18,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:18,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:28:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101761963] [2022-03-20 02:28:18,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:18,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:28:18,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:18,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:28:18,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:28:18,867 INFO L87 Difference]: Start difference. First operand 819 states and 1101 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:20,851 INFO L93 Difference]: Finished difference Result 1100 states and 1559 transitions. [2022-03-20 02:28:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:28:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-03-20 02:28:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:20,854 INFO L225 Difference]: With dead ends: 1100 [2022-03-20 02:28:20,855 INFO L226 Difference]: Without dead ends: 989 [2022-03-20 02:28:20,855 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:28:20,856 INFO L913 BasicCegarLoop]: 605 mSDtfsCounter, 974 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:20,856 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 1846 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2510 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:28:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-03-20 02:28:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 826. [2022-03-20 02:28:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 650 states have (on average 1.333846153846154) internal successors, (867), 664 states have internal predecessors, (867), 104 states have call successors, (104), 51 states have call predecessors, (104), 71 states have return successors, (146), 117 states have call predecessors, (146), 97 states have call successors, (146) [2022-03-20 02:28:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1117 transitions. [2022-03-20 02:28:20,953 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1117 transitions. Word has length 60 [2022-03-20 02:28:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:20,953 INFO L478 AbstractCegarLoop]: Abstraction has 826 states and 1117 transitions. [2022-03-20 02:28:20,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1117 transitions. [2022-03-20 02:28:20,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 02:28:20,955 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:20,955 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:20,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:28:20,955 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:20,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:20,956 INFO L85 PathProgramCache]: Analyzing trace with hash 875576268, now seen corresponding path program 1 times [2022-03-20 02:28:20,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:20,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850413216] [2022-03-20 02:28:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:20,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 02:28:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:21,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:21,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850413216] [2022-03-20 02:28:21,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850413216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:21,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:21,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-20 02:28:21,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093827499] [2022-03-20 02:28:21,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:21,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 02:28:21,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:21,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 02:28:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:21,189 INFO L87 Difference]: Start difference. First operand 826 states and 1117 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:23,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:23,498 INFO L93 Difference]: Finished difference Result 969 states and 1356 transitions. [2022-03-20 02:28:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 02:28:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 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 60 [2022-03-20 02:28:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:23,501 INFO L225 Difference]: With dead ends: 969 [2022-03-20 02:28:23,501 INFO L226 Difference]: Without dead ends: 944 [2022-03-20 02:28:23,502 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:28:23,503 INFO L913 BasicCegarLoop]: 610 mSDtfsCounter, 641 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 4530 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 4789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 4530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:23,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2802 Invalid, 4789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 4530 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 02:28:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-03-20 02:28:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 824. [2022-03-20 02:28:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 649 states have (on average 1.3328197226502312) internal successors, (865), 663 states have internal predecessors, (865), 103 states have call successors, (103), 51 states have call predecessors, (103), 71 states have return successors, (145), 116 states have call predecessors, (145), 96 states have call successors, (145) [2022-03-20 02:28:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1113 transitions. [2022-03-20 02:28:23,578 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1113 transitions. Word has length 60 [2022-03-20 02:28:23,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:23,579 INFO L478 AbstractCegarLoop]: Abstraction has 824 states and 1113 transitions. [2022-03-20 02:28:23,579 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1113 transitions. [2022-03-20 02:28:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 02:28:23,580 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:23,581 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:23,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:28:23,584 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:23,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1391350355, now seen corresponding path program 1 times [2022-03-20 02:28:23,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:23,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809175879] [2022-03-20 02:28:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:23,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:28:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:23,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:23,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809175879] [2022-03-20 02:28:23,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809175879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:23,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:23,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-20 02:28:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572476232] [2022-03-20 02:28:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:23,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-20 02:28:23,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:23,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-20 02:28:23,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:28:23,807 INFO L87 Difference]: Start difference. First operand 824 states and 1113 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 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) [2022-03-20 02:28:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:24,937 INFO L93 Difference]: Finished difference Result 978 states and 1360 transitions. [2022-03-20 02:28:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:28:24,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 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 [2022-03-20 02:28:24,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:24,940 INFO L225 Difference]: With dead ends: 978 [2022-03-20 02:28:24,940 INFO L226 Difference]: Without dead ends: 946 [2022-03-20 02:28:24,941 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:28:24,941 INFO L913 BasicCegarLoop]: 606 mSDtfsCounter, 1233 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:24,941 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 1505 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:28:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-03-20 02:28:25,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 824. [2022-03-20 02:28:25,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 649 states have (on average 1.3312788906009245) internal successors, (864), 663 states have internal predecessors, (864), 103 states have call successors, (103), 51 states have call predecessors, (103), 71 states have return successors, (145), 116 states have call predecessors, (145), 96 states have call successors, (145) [2022-03-20 02:28:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1112 transitions. [2022-03-20 02:28:25,015 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1112 transitions. Word has length 60 [2022-03-20 02:28:25,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:25,015 INFO L478 AbstractCegarLoop]: Abstraction has 824 states and 1112 transitions. [2022-03-20 02:28:25,015 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 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) [2022-03-20 02:28:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1112 transitions. [2022-03-20 02:28:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 02:28:25,016 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:25,017 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:25,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:28:25,017 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:25,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1900823445, now seen corresponding path program 1 times [2022-03-20 02:28:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:25,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146091437] [2022-03-20 02:28:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:28:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:25,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:25,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146091437] [2022-03-20 02:28:25,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146091437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:25,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:25,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-20 02:28:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317652708] [2022-03-20 02:28:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:25,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 02:28:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 02:28:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:25,352 INFO L87 Difference]: Start difference. First operand 824 states and 1112 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-20 02:28:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:27,606 INFO L93 Difference]: Finished difference Result 985 states and 1377 transitions. [2022-03-20 02:28:27,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-20 02:28:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 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 60 [2022-03-20 02:28:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:27,609 INFO L225 Difference]: With dead ends: 985 [2022-03-20 02:28:27,609 INFO L226 Difference]: Without dead ends: 933 [2022-03-20 02:28:27,609 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-03-20 02:28:27,610 INFO L913 BasicCegarLoop]: 607 mSDtfsCounter, 968 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 4724 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 5117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 4724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:27,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 2574 Invalid, 5117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 4724 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:28:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-03-20 02:28:27,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 816. [2022-03-20 02:28:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 643 states have (on average 1.3265940902021773) internal successors, (853), 657 states have internal predecessors, (853), 101 states have call successors, (101), 51 states have call predecessors, (101), 71 states have return successors, (143), 114 states have call predecessors, (143), 94 states have call successors, (143) [2022-03-20 02:28:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1097 transitions. [2022-03-20 02:28:27,682 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1097 transitions. Word has length 60 [2022-03-20 02:28:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:27,683 INFO L478 AbstractCegarLoop]: Abstraction has 816 states and 1097 transitions. [2022-03-20 02:28:27,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-20 02:28:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1097 transitions. [2022-03-20 02:28:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-20 02:28:27,684 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:27,684 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:27,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:28:27,684 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash -384399656, now seen corresponding path program 1 times [2022-03-20 02:28:27,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:27,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408434425] [2022-03-20 02:28:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:27,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:28:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:27,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408434425] [2022-03-20 02:28:27,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408434425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:27,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:27,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:28:27,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927183660] [2022-03-20 02:28:27,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:27,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:28:27,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:28:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:28:27,860 INFO L87 Difference]: Start difference. First operand 816 states and 1097 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:29,632 INFO L93 Difference]: Finished difference Result 981 states and 1378 transitions. [2022-03-20 02:28:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:28:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2022-03-20 02:28:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:29,635 INFO L225 Difference]: With dead ends: 981 [2022-03-20 02:28:29,635 INFO L226 Difference]: Without dead ends: 947 [2022-03-20 02:28:29,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:28:29,638 INFO L913 BasicCegarLoop]: 589 mSDtfsCounter, 338 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 2863 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:29,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1966 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2863 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 02:28:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-03-20 02:28:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 820. [2022-03-20 02:28:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 645 states have (on average 1.3255813953488371) internal successors, (855), 661 states have internal predecessors, (855), 101 states have call successors, (101), 51 states have call predecessors, (101), 73 states have return successors, (159), 114 states have call predecessors, (159), 94 states have call successors, (159) [2022-03-20 02:28:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1115 transitions. [2022-03-20 02:28:29,737 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1115 transitions. Word has length 61 [2022-03-20 02:28:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:29,738 INFO L478 AbstractCegarLoop]: Abstraction has 820 states and 1115 transitions. [2022-03-20 02:28:29,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1115 transitions. [2022-03-20 02:28:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 02:28:29,739 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:29,739 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:29,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:28:29,739 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:29,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1213250190, now seen corresponding path program 1 times [2022-03-20 02:28:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:29,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014131855] [2022-03-20 02:28:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:30,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:30,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014131855] [2022-03-20 02:28:30,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014131855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:30,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:30,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 02:28:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26732508] [2022-03-20 02:28:30,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:30,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 02:28:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:30,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 02:28:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:28:30,009 INFO L87 Difference]: Start difference. First operand 820 states and 1115 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:31,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:31,966 INFO L93 Difference]: Finished difference Result 954 states and 1343 transitions. [2022-03-20 02:28:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 02:28:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-03-20 02:28:31,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:31,970 INFO L225 Difference]: With dead ends: 954 [2022-03-20 02:28:31,971 INFO L226 Difference]: Without dead ends: 932 [2022-03-20 02:28:31,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:31,971 INFO L913 BasicCegarLoop]: 596 mSDtfsCounter, 884 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 5930 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 6295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 5930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:31,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 3142 Invalid, 6295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 5930 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:28:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-03-20 02:28:32,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 815. [2022-03-20 02:28:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 642 states have (on average 1.3255451713395638) internal successors, (851), 658 states have internal predecessors, (851), 100 states have call successors, (100), 51 states have call predecessors, (100), 72 states have return successors, (157), 112 states have call predecessors, (157), 93 states have call successors, (157) [2022-03-20 02:28:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1108 transitions. [2022-03-20 02:28:32,042 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1108 transitions. Word has length 62 [2022-03-20 02:28:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:32,043 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1108 transitions. [2022-03-20 02:28:32,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1108 transitions. [2022-03-20 02:28:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:28:32,044 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:32,044 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:32,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:28:32,044 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1649412610, now seen corresponding path program 1 times [2022-03-20 02:28:32,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:32,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165010039] [2022-03-20 02:28:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:32,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165010039] [2022-03-20 02:28:32,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165010039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:32,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:32,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 02:28:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176012464] [2022-03-20 02:28:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:32,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 02:28:32,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 02:28:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:32,309 INFO L87 Difference]: Start difference. First operand 815 states and 1108 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:28:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:35,075 INFO L93 Difference]: Finished difference Result 956 states and 1343 transitions. [2022-03-20 02:28:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 02:28:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2022-03-20 02:28:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:35,078 INFO L225 Difference]: With dead ends: 956 [2022-03-20 02:28:35,078 INFO L226 Difference]: Without dead ends: 931 [2022-03-20 02:28:35,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:28:35,079 INFO L913 BasicCegarLoop]: 586 mSDtfsCounter, 1801 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 5582 mSolverCounterSat, 741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 6323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 741 IncrementalHoareTripleChecker+Valid, 5582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:35,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 3553 Invalid, 6323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [741 Valid, 5582 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:28:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-03-20 02:28:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 813. [2022-03-20 02:28:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 641 states have (on average 1.3244929797191887) internal successors, (849), 657 states have internal predecessors, (849), 99 states have call successors, (99), 51 states have call predecessors, (99), 72 states have return successors, (156), 111 states have call predecessors, (156), 92 states have call successors, (156) [2022-03-20 02:28:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1104 transitions. [2022-03-20 02:28:35,150 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1104 transitions. Word has length 67 [2022-03-20 02:28:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:35,150 INFO L478 AbstractCegarLoop]: Abstraction has 813 states and 1104 transitions. [2022-03-20 02:28:35,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:28:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1104 transitions. [2022-03-20 02:28:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:28:35,152 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:35,152 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:35,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:28:35,152 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash -395524383, now seen corresponding path program 1 times [2022-03-20 02:28:35,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894230738] [2022-03-20 02:28:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:28:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:35,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:35,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:35,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894230738] [2022-03-20 02:28:35,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894230738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:35,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:35,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 02:28:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453514650] [2022-03-20 02:28:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:35,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 02:28:35,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:35,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 02:28:35,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:35,439 INFO L87 Difference]: Start difference. First operand 813 states and 1104 transitions. Second operand has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:28:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:37,743 INFO L93 Difference]: Finished difference Result 953 states and 1336 transitions. [2022-03-20 02:28:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 02:28:37,744 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 66 [2022-03-20 02:28:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:37,747 INFO L225 Difference]: With dead ends: 953 [2022-03-20 02:28:37,747 INFO L226 Difference]: Without dead ends: 928 [2022-03-20 02:28:37,747 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:28:37,748 INFO L913 BasicCegarLoop]: 583 mSDtfsCounter, 1256 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 5246 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 5743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 5246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:37,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 3107 Invalid, 5743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 5246 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 02:28:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-03-20 02:28:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 811. [2022-03-20 02:28:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 640 states have (on average 1.3234375) internal successors, (847), 656 states have internal predecessors, (847), 98 states have call successors, (98), 51 states have call predecessors, (98), 72 states have return successors, (155), 110 states have call predecessors, (155), 91 states have call successors, (155) [2022-03-20 02:28:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1100 transitions. [2022-03-20 02:28:37,820 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1100 transitions. Word has length 66 [2022-03-20 02:28:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:37,821 INFO L478 AbstractCegarLoop]: Abstraction has 811 states and 1100 transitions. [2022-03-20 02:28:37,821 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:28:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1100 transitions. [2022-03-20 02:28:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 02:28:37,822 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:37,822 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:37,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:28:37,822 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:37,823 INFO L85 PathProgramCache]: Analyzing trace with hash 73194234, now seen corresponding path program 1 times [2022-03-20 02:28:37,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:37,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268830855] [2022-03-20 02:28:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:37,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-20 02:28:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:38,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:38,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268830855] [2022-03-20 02:28:38,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268830855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:38,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:38,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-20 02:28:38,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387193154] [2022-03-20 02:28:38,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:38,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-20 02:28:38,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-20 02:28:38,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:28:38,097 INFO L87 Difference]: Start difference. First operand 811 states and 1100 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:40,217 INFO L93 Difference]: Finished difference Result 948 states and 1327 transitions. [2022-03-20 02:28:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-20 02:28:40,218 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2022-03-20 02:28:40,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:40,220 INFO L225 Difference]: With dead ends: 948 [2022-03-20 02:28:40,220 INFO L226 Difference]: Without dead ends: 924 [2022-03-20 02:28:40,221 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-20 02:28:40,221 INFO L913 BasicCegarLoop]: 560 mSDtfsCounter, 328 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 6162 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 6294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 6162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:40,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 3244 Invalid, 6294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 6162 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:28:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-20 02:28:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 809. [2022-03-20 02:28:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 639 states have (on average 1.322378716744914) internal successors, (845), 655 states have internal predecessors, (845), 97 states have call successors, (97), 51 states have call predecessors, (97), 72 states have return successors, (154), 109 states have call predecessors, (154), 90 states have call successors, (154) [2022-03-20 02:28:40,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1096 transitions. [2022-03-20 02:28:40,292 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1096 transitions. Word has length 63 [2022-03-20 02:28:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:40,292 INFO L478 AbstractCegarLoop]: Abstraction has 809 states and 1096 transitions. [2022-03-20 02:28:40,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1096 transitions. [2022-03-20 02:28:40,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 02:28:40,294 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:40,294 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:40,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:28:40,294 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:40,294 INFO L85 PathProgramCache]: Analyzing trace with hash -20126443, now seen corresponding path program 1 times [2022-03-20 02:28:40,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:40,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275935157] [2022-03-20 02:28:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:40,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-20 02:28:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:40,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:40,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275935157] [2022-03-20 02:28:40,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275935157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:40,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:40,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:28:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533629747] [2022-03-20 02:28:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:40,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:28:40,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:28:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:40,459 INFO L87 Difference]: Start difference. First operand 809 states and 1096 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:41,349 INFO L93 Difference]: Finished difference Result 1141 states and 1563 transitions. [2022-03-20 02:28:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:28:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2022-03-20 02:28:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:41,351 INFO L225 Difference]: With dead ends: 1141 [2022-03-20 02:28:41,351 INFO L226 Difference]: Without dead ends: 809 [2022-03-20 02:28:41,352 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:28:41,353 INFO L913 BasicCegarLoop]: 518 mSDtfsCounter, 599 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:41,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1064 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 02:28:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-03-20 02:28:41,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 701. [2022-03-20 02:28:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 554 states have (on average 1.3086642599277978) internal successors, (725), 570 states have internal predecessors, (725), 84 states have call successors, (84), 45 states have call predecessors, (84), 62 states have return successors, (108), 92 states have call predecessors, (108), 77 states have call successors, (108) [2022-03-20 02:28:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 917 transitions. [2022-03-20 02:28:41,420 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 917 transitions. Word has length 63 [2022-03-20 02:28:41,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:41,420 INFO L478 AbstractCegarLoop]: Abstraction has 701 states and 917 transitions. [2022-03-20 02:28:41,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 917 transitions. [2022-03-20 02:28:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-03-20 02:28:41,422 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:41,422 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:41,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:28:41,422 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1748590526, now seen corresponding path program 1 times [2022-03-20 02:28:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:41,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168220746] [2022-03-20 02:28:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:41,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-20 02:28:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:41,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:41,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168220746] [2022-03-20 02:28:41,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168220746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:41,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:41,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 02:28:41,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506707838] [2022-03-20 02:28:41,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:41,765 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 02:28:41,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:41,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 02:28:41,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:28:41,765 INFO L87 Difference]: Start difference. First operand 701 states and 917 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:43,598 INFO L93 Difference]: Finished difference Result 780 states and 1030 transitions. [2022-03-20 02:28:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 02:28:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2022-03-20 02:28:43,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:43,600 INFO L225 Difference]: With dead ends: 780 [2022-03-20 02:28:43,600 INFO L226 Difference]: Without dead ends: 758 [2022-03-20 02:28:43,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:43,601 INFO L913 BasicCegarLoop]: 526 mSDtfsCounter, 846 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 4845 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 5163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 4845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:43,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 2503 Invalid, 5163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 4845 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:28:43,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-03-20 02:28:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 699. [2022-03-20 02:28:43,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 553 states have (on average 1.3074141048824592) internal successors, (723), 569 states have internal predecessors, (723), 83 states have call successors, (83), 45 states have call predecessors, (83), 62 states have return successors, (107), 91 states have call predecessors, (107), 76 states have call successors, (107) [2022-03-20 02:28:43,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 913 transitions. [2022-03-20 02:28:43,665 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 913 transitions. Word has length 72 [2022-03-20 02:28:43,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:43,666 INFO L478 AbstractCegarLoop]: Abstraction has 699 states and 913 transitions. [2022-03-20 02:28:43,666 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:43,666 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 913 transitions. [2022-03-20 02:28:43,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:28:43,667 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:43,667 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:43,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:28:43,667 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:43,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1016702716, now seen corresponding path program 1 times [2022-03-20 02:28:43,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:43,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67131964] [2022-03-20 02:28:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:28:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:43,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:43,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67131964] [2022-03-20 02:28:43,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67131964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:43,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:43,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 02:28:43,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538648444] [2022-03-20 02:28:43,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:43,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 02:28:43,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:43,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 02:28:43,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:28:43,945 INFO L87 Difference]: Start difference. First operand 699 states and 913 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:46,283 INFO L93 Difference]: Finished difference Result 775 states and 1023 transitions. [2022-03-20 02:28:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 02:28:46,283 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-03-20 02:28:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:46,285 INFO L225 Difference]: With dead ends: 775 [2022-03-20 02:28:46,285 INFO L226 Difference]: Without dead ends: 745 [2022-03-20 02:28:46,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:46,286 INFO L913 BasicCegarLoop]: 519 mSDtfsCounter, 1109 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 5476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:46,286 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2489 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:28:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-03-20 02:28:46,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 688. [2022-03-20 02:28:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 545 states have (on average 1.308256880733945) internal successors, (713), 561 states have internal predecessors, (713), 81 states have call successors, (81), 45 states have call predecessors, (81), 61 states have return successors, (104), 88 states have call predecessors, (104), 74 states have call successors, (104) [2022-03-20 02:28:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 898 transitions. [2022-03-20 02:28:46,350 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 898 transitions. Word has length 69 [2022-03-20 02:28:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:46,350 INFO L478 AbstractCegarLoop]: Abstraction has 688 states and 898 transitions. [2022-03-20 02:28:46,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 898 transitions. [2022-03-20 02:28:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 02:28:46,351 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:46,352 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:46,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:28:46,352 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:46,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:46,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1125022054, now seen corresponding path program 1 times [2022-03-20 02:28:46,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:46,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995540280] [2022-03-20 02:28:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:46,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:28:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:46,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:46,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995540280] [2022-03-20 02:28:46,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995540280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:46,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:46,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 02:28:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004135553] [2022-03-20 02:28:46,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:46,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 02:28:46,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:46,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 02:28:46,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:28:46,611 INFO L87 Difference]: Start difference. First operand 688 states and 898 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:48,510 INFO L93 Difference]: Finished difference Result 762 states and 1004 transitions. [2022-03-20 02:28:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 02:28:48,510 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2022-03-20 02:28:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:48,518 INFO L225 Difference]: With dead ends: 762 [2022-03-20 02:28:48,518 INFO L226 Difference]: Without dead ends: 740 [2022-03-20 02:28:48,519 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-03-20 02:28:48,519 INFO L913 BasicCegarLoop]: 504 mSDtfsCounter, 290 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 5145 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 5250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 5145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:48,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2486 Invalid, 5250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 5145 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:28:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-03-20 02:28:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 683. [2022-03-20 02:28:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 542 states have (on average 1.3081180811808117) internal successors, (709), 558 states have internal predecessors, (709), 80 states have call successors, (80), 45 states have call predecessors, (80), 60 states have return successors, (102), 86 states have call predecessors, (102), 73 states have call successors, (102) [2022-03-20 02:28:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 891 transitions. [2022-03-20 02:28:48,581 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 891 transitions. Word has length 63 [2022-03-20 02:28:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:48,582 INFO L478 AbstractCegarLoop]: Abstraction has 683 states and 891 transitions. [2022-03-20 02:28:48,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 891 transitions. [2022-03-20 02:28:48,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 02:28:48,583 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:48,583 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:48,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:28:48,583 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:48,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:48,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1222738042, now seen corresponding path program 1 times [2022-03-20 02:28:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:48,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067274896] [2022-03-20 02:28:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:48,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-03-20 02:28:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-03-20 02:28:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:28:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:28:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:48,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067274896] [2022-03-20 02:28:48,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067274896] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:28:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690149682] [2022-03-20 02:28:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:48,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:28:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:28:48,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:28:48,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 02:28:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:48,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-20 02:28:48,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:28:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:49,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:28:49,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690149682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:49,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:28:49,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2022-03-20 02:28:49,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931586861] [2022-03-20 02:28:49,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:49,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:28:49,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:49,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:28:49,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:49,006 INFO L87 Difference]: Start difference. First operand 683 states and 891 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:28:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:49,076 INFO L93 Difference]: Finished difference Result 892 states and 1159 transitions. [2022-03-20 02:28:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:28:49,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2022-03-20 02:28:49,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:49,079 INFO L225 Difference]: With dead ends: 892 [2022-03-20 02:28:49,079 INFO L226 Difference]: Without dead ends: 755 [2022-03-20 02:28:49,079 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:49,080 INFO L913 BasicCegarLoop]: 582 mSDtfsCounter, 114 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:49,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1074 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 02:28:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-03-20 02:28:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 724. [2022-03-20 02:28:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 575 states have (on average 1.3043478260869565) internal successors, (750), 591 states have internal predecessors, (750), 82 states have call successors, (82), 48 states have call predecessors, (82), 66 states have return successors, (110), 91 states have call predecessors, (110), 76 states have call successors, (110) [2022-03-20 02:28:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 942 transitions. [2022-03-20 02:28:49,144 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 942 transitions. Word has length 80 [2022-03-20 02:28:49,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:49,145 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 942 transitions. [2022-03-20 02:28:49,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:28:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 942 transitions. [2022-03-20 02:28:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:28:49,146 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:49,146 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:49,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 02:28:49,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-03-20 02:28:49,364 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash 505400329, now seen corresponding path program 1 times [2022-03-20 02:28:49,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:49,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815996964] [2022-03-20 02:28:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:28:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:28:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:28:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:49,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:49,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815996964] [2022-03-20 02:28:49,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815996964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:49,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:49,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 02:28:49,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291835183] [2022-03-20 02:28:49,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:49,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-20 02:28:49,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-20 02:28:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:28:49,494 INFO L87 Difference]: Start difference. First operand 724 states and 942 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-03-20 02:28:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:50,682 INFO L93 Difference]: Finished difference Result 911 states and 1203 transitions. [2022-03-20 02:28:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:28:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2022-03-20 02:28:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:50,684 INFO L225 Difference]: With dead ends: 911 [2022-03-20 02:28:50,684 INFO L226 Difference]: Without dead ends: 781 [2022-03-20 02:28:50,684 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:50,685 INFO L913 BasicCegarLoop]: 466 mSDtfsCounter, 394 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:50,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 903 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:28:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-03-20 02:28:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 724. [2022-03-20 02:28:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 575 states have (on average 1.2991304347826087) internal successors, (747), 591 states have internal predecessors, (747), 82 states have call successors, (82), 48 states have call predecessors, (82), 66 states have return successors, (110), 91 states have call predecessors, (110), 76 states have call successors, (110) [2022-03-20 02:28:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 939 transitions. [2022-03-20 02:28:50,748 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 939 transitions. Word has length 66 [2022-03-20 02:28:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:50,748 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 939 transitions. [2022-03-20 02:28:50,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-03-20 02:28:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 939 transitions. [2022-03-20 02:28:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 02:28:50,749 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:50,750 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:50,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:28:50,750 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:50,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:50,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1348887076, now seen corresponding path program 1 times [2022-03-20 02:28:50,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:50,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825359010] [2022-03-20 02:28:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:28:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:28:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:50,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:50,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825359010] [2022-03-20 02:28:50,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825359010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:50,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:50,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:28:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535081607] [2022-03-20 02:28:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:50,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:28:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:50,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:28:50,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:28:50,945 INFO L87 Difference]: Start difference. First operand 724 states and 939 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:52,621 INFO L93 Difference]: Finished difference Result 845 states and 1103 transitions. [2022-03-20 02:28:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-20 02:28:52,622 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), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2022-03-20 02:28:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:52,623 INFO L225 Difference]: With dead ends: 845 [2022-03-20 02:28:52,623 INFO L226 Difference]: Without dead ends: 812 [2022-03-20 02:28:52,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:28:52,624 INFO L913 BasicCegarLoop]: 484 mSDtfsCounter, 990 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:52,625 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 1402 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 02:28:52,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-03-20 02:28:52,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 730. [2022-03-20 02:28:52,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 580 states have (on average 1.2982758620689656) internal successors, (753), 596 states have internal predecessors, (753), 83 states have call successors, (83), 48 states have call predecessors, (83), 66 states have return successors, (111), 92 states have call predecessors, (111), 77 states have call successors, (111) [2022-03-20 02:28:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 947 transitions. [2022-03-20 02:28:52,692 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 947 transitions. Word has length 65 [2022-03-20 02:28:52,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:52,692 INFO L478 AbstractCegarLoop]: Abstraction has 730 states and 947 transitions. [2022-03-20 02:28:52,692 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), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-20 02:28:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 947 transitions. [2022-03-20 02:28:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:28:52,693 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:52,693 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:52,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 02:28:52,693 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:52,694 INFO L85 PathProgramCache]: Analyzing trace with hash 257334910, now seen corresponding path program 1 times [2022-03-20 02:28:52,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:52,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892901095] [2022-03-20 02:28:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:52,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-20 02:28:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:52,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:52,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892901095] [2022-03-20 02:28:52,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892901095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:52,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:52,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:28:52,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907726246] [2022-03-20 02:28:52,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:52,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:28:52,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:52,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:28:52,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:28:52,856 INFO L87 Difference]: Start difference. First operand 730 states and 947 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:53,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:53,941 INFO L93 Difference]: Finished difference Result 843 states and 1096 transitions. [2022-03-20 02:28:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:28:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-03-20 02:28:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:53,944 INFO L225 Difference]: With dead ends: 843 [2022-03-20 02:28:53,944 INFO L226 Difference]: Without dead ends: 789 [2022-03-20 02:28:53,944 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:53,945 INFO L913 BasicCegarLoop]: 489 mSDtfsCounter, 856 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:53,945 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 1171 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-20 02:28:53,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-03-20 02:28:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 730. [2022-03-20 02:28:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 580 states have (on average 1.2948275862068965) internal successors, (751), 596 states have internal predecessors, (751), 83 states have call successors, (83), 48 states have call predecessors, (83), 66 states have return successors, (111), 92 states have call predecessors, (111), 77 states have call successors, (111) [2022-03-20 02:28:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 945 transitions. [2022-03-20 02:28:54,031 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 945 transitions. Word has length 66 [2022-03-20 02:28:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:54,032 INFO L478 AbstractCegarLoop]: Abstraction has 730 states and 945 transitions. [2022-03-20 02:28:54,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 945 transitions. [2022-03-20 02:28:54,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:28:54,033 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:54,033 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:54,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:28:54,033 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 958934784, now seen corresponding path program 1 times [2022-03-20 02:28:54,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:54,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400904539] [2022-03-20 02:28:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-20 02:28:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:54,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:54,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400904539] [2022-03-20 02:28:54,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400904539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:54,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:54,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-20 02:28:54,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98773689] [2022-03-20 02:28:54,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:54,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 02:28:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 02:28:54,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:28:54,215 INFO L87 Difference]: Start difference. First operand 730 states and 945 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:55,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:55,581 INFO L93 Difference]: Finished difference Result 814 states and 1063 transitions. [2022-03-20 02:28:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 02:28:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 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 66 [2022-03-20 02:28:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:55,583 INFO L225 Difference]: With dead ends: 814 [2022-03-20 02:28:55,583 INFO L226 Difference]: Without dead ends: 737 [2022-03-20 02:28:55,584 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:28:55,585 INFO L913 BasicCegarLoop]: 495 mSDtfsCounter, 898 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 3503 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 3503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:55,585 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 1903 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 3503 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 02:28:55,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-03-20 02:28:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 693. [2022-03-20 02:28:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 550 states have (on average 1.2818181818181817) internal successors, (705), 566 states have internal predecessors, (705), 76 states have call successors, (76), 48 states have call predecessors, (76), 66 states have return successors, (103), 85 states have call predecessors, (103), 70 states have call successors, (103) [2022-03-20 02:28:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 884 transitions. [2022-03-20 02:28:55,666 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 884 transitions. Word has length 66 [2022-03-20 02:28:55,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:55,667 INFO L478 AbstractCegarLoop]: Abstraction has 693 states and 884 transitions. [2022-03-20 02:28:55,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:55,667 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 884 transitions. [2022-03-20 02:28:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:28:55,668 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:55,668 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:55,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:28:55,668 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash -896433839, now seen corresponding path program 1 times [2022-03-20 02:28:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:55,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793692857] [2022-03-20 02:28:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-20 02:28:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:55,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:55,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793692857] [2022-03-20 02:28:55,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793692857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:55,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:55,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:28:55,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301392351] [2022-03-20 02:28:55,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:55,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:28:55,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:55,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:28:55,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:28:55,845 INFO L87 Difference]: Start difference. First operand 693 states and 884 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:56,998 INFO L93 Difference]: Finished difference Result 765 states and 977 transitions. [2022-03-20 02:28:56,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:28:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-03-20 02:28:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:57,000 INFO L225 Difference]: With dead ends: 765 [2022-03-20 02:28:57,000 INFO L226 Difference]: Without dead ends: 726 [2022-03-20 02:28:57,001 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:28:57,001 INFO L913 BasicCegarLoop]: 436 mSDtfsCounter, 492 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:57,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1298 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 02:28:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-03-20 02:28:57,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 688. [2022-03-20 02:28:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 546 states have (on average 1.2820512820512822) internal successors, (700), 562 states have internal predecessors, (700), 75 states have call successors, (75), 48 states have call predecessors, (75), 66 states have return successors, (102), 84 states have call predecessors, (102), 69 states have call successors, (102) [2022-03-20 02:28:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 877 transitions. [2022-03-20 02:28:57,076 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 877 transitions. Word has length 67 [2022-03-20 02:28:57,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:57,076 INFO L478 AbstractCegarLoop]: Abstraction has 688 states and 877 transitions. [2022-03-20 02:28:57,077 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 877 transitions. [2022-03-20 02:28:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:28:57,078 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:57,078 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:57,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:28:57,078 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:57,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:57,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1676375305, now seen corresponding path program 1 times [2022-03-20 02:28:57,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:57,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569365509] [2022-03-20 02:28:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:57,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:57,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569365509] [2022-03-20 02:28:57,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569365509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:57,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:57,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:28:57,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438866254] [2022-03-20 02:28:57,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:57,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:28:57,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:28:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:28:57,242 INFO L87 Difference]: Start difference. First operand 688 states and 877 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:58,319 INFO L93 Difference]: Finished difference Result 844 states and 1083 transitions. [2022-03-20 02:28:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:28:58,320 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2022-03-20 02:28:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:58,322 INFO L225 Difference]: With dead ends: 844 [2022-03-20 02:28:58,322 INFO L226 Difference]: Without dead ends: 832 [2022-03-20 02:28:58,323 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:28:58,323 INFO L913 BasicCegarLoop]: 456 mSDtfsCounter, 924 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:58,323 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 951 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 02:28:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-03-20 02:28:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 734. [2022-03-20 02:28:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 582 states have (on average 1.274914089347079) internal successors, (742), 600 states have internal predecessors, (742), 77 states have call successors, (77), 50 states have call predecessors, (77), 74 states have return successors, (110), 92 states have call predecessors, (110), 71 states have call successors, (110) [2022-03-20 02:28:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 929 transitions. [2022-03-20 02:28:58,389 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 929 transitions. Word has length 67 [2022-03-20 02:28:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:58,389 INFO L478 AbstractCegarLoop]: Abstraction has 734 states and 929 transitions. [2022-03-20 02:28:58,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:28:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 929 transitions. [2022-03-20 02:28:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 02:28:58,390 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:58,390 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:58,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 02:28:58,390 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash 871891881, now seen corresponding path program 1 times [2022-03-20 02:28:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:58,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907448161] [2022-03-20 02:28:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:58,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:28:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:28:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:28:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:28:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:28:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:28:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:28:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:28:58,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:28:58,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907448161] [2022-03-20 02:28:58,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907448161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:28:58,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:28:58,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:28:58,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794098996] [2022-03-20 02:28:58,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:28:58,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:28:58,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:28:58,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:28:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:28:58,551 INFO L87 Difference]: Start difference. First operand 734 states and 929 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:28:59,861 INFO L93 Difference]: Finished difference Result 838 states and 1072 transitions. [2022-03-20 02:28:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-20 02:28:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 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 68 [2022-03-20 02:28:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:28:59,864 INFO L225 Difference]: With dead ends: 838 [2022-03-20 02:28:59,864 INFO L226 Difference]: Without dead ends: 829 [2022-03-20 02:28:59,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-03-20 02:28:59,865 INFO L913 BasicCegarLoop]: 453 mSDtfsCounter, 1695 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:28:59,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1702 Valid, 913 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:28:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-03-20 02:28:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 734. [2022-03-20 02:28:59,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 582 states have (on average 1.2714776632302405) internal successors, (740), 600 states have internal predecessors, (740), 77 states have call successors, (77), 50 states have call predecessors, (77), 74 states have return successors, (110), 92 states have call predecessors, (110), 71 states have call successors, (110) [2022-03-20 02:28:59,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 927 transitions. [2022-03-20 02:28:59,932 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 927 transitions. Word has length 68 [2022-03-20 02:28:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:28:59,932 INFO L478 AbstractCegarLoop]: Abstraction has 734 states and 927 transitions. [2022-03-20 02:28:59,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:28:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 927 transitions. [2022-03-20 02:28:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 02:28:59,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:28:59,934 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:28:59,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 02:28:59,934 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:28:59,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:28:59,935 INFO L85 PathProgramCache]: Analyzing trace with hash 881211856, now seen corresponding path program 1 times [2022-03-20 02:28:59,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:28:59,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276682699] [2022-03-20 02:28:59,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:28:59,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:28:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:29:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-20 02:29:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:00,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:00,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276682699] [2022-03-20 02:29:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276682699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:00,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 02:29:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361170006] [2022-03-20 02:29:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:00,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 02:29:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 02:29:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:29:00,248 INFO L87 Difference]: Start difference. First operand 734 states and 927 transitions. Second operand has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-20 02:29:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:02,095 INFO L93 Difference]: Finished difference Result 812 states and 1036 transitions. [2022-03-20 02:29:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 02:29:02,095 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-03-20 02:29:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:02,097 INFO L225 Difference]: With dead ends: 812 [2022-03-20 02:29:02,097 INFO L226 Difference]: Without dead ends: 787 [2022-03-20 02:29:02,098 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:29:02,100 INFO L913 BasicCegarLoop]: 441 mSDtfsCounter, 802 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 4056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:02,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 2183 Invalid, 4056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 02:29:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-03-20 02:29:02,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 732. [2022-03-20 02:29:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 581 states have (on average 1.270223752151463) internal successors, (738), 599 states have internal predecessors, (738), 76 states have call successors, (76), 50 states have call predecessors, (76), 74 states have return successors, (109), 91 states have call predecessors, (109), 70 states have call successors, (109) [2022-03-20 02:29:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 923 transitions. [2022-03-20 02:29:02,171 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 923 transitions. Word has length 74 [2022-03-20 02:29:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:02,171 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 923 transitions. [2022-03-20 02:29:02,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-20 02:29:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 923 transitions. [2022-03-20 02:29:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 02:29:02,172 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:02,172 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:02,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 02:29:02,172 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:02,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1188604284, now seen corresponding path program 1 times [2022-03-20 02:29:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:02,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341057221] [2022-03-20 02:29:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-20 02:29:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-03-20 02:29:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:02,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341057221] [2022-03-20 02:29:02,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341057221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:02,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-20 02:29:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101053881] [2022-03-20 02:29:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:02,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-20 02:29:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:02,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-20 02:29:02,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-03-20 02:29:02,491 INFO L87 Difference]: Start difference. First operand 732 states and 923 transitions. Second operand has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:29:04,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:04,654 INFO L93 Difference]: Finished difference Result 793 states and 1004 transitions. [2022-03-20 02:29:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-20 02:29:04,655 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2022-03-20 02:29:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:04,657 INFO L225 Difference]: With dead ends: 793 [2022-03-20 02:29:04,657 INFO L226 Difference]: Without dead ends: 765 [2022-03-20 02:29:04,657 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2022-03-20 02:29:04,657 INFO L913 BasicCegarLoop]: 435 mSDtfsCounter, 767 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 4539 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 4815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 4539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:04,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 2543 Invalid, 4815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 4539 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:29:04,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-03-20 02:29:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 728. [2022-03-20 02:29:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 578 states have (on average 1.2698961937716262) internal successors, (734), 596 states have internal predecessors, (734), 75 states have call successors, (75), 50 states have call predecessors, (75), 74 states have return successors, (108), 90 states have call predecessors, (108), 69 states have call successors, (108) [2022-03-20 02:29:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 917 transitions. [2022-03-20 02:29:04,723 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 917 transitions. Word has length 70 [2022-03-20 02:29:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:04,723 INFO L478 AbstractCegarLoop]: Abstraction has 728 states and 917 transitions. [2022-03-20 02:29:04,723 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:29:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 917 transitions. [2022-03-20 02:29:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:29:04,724 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:04,724 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:04,725 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 02:29:04,725 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1926600916, now seen corresponding path program 1 times [2022-03-20 02:29:04,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:04,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940168825] [2022-03-20 02:29:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:04,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-20 02:29:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:29:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:04,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:04,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940168825] [2022-03-20 02:29:04,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940168825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:04,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:04,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657080964] [2022-03-20 02:29:04,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:04,887 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:04,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:04,888 INFO L87 Difference]: Start difference. First operand 728 states and 917 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:05,838 INFO L93 Difference]: Finished difference Result 799 states and 1007 transitions. [2022-03-20 02:29:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:29:05,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-03-20 02:29:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:05,840 INFO L225 Difference]: With dead ends: 799 [2022-03-20 02:29:05,840 INFO L226 Difference]: Without dead ends: 760 [2022-03-20 02:29:05,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:05,841 INFO L913 BasicCegarLoop]: 420 mSDtfsCounter, 690 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:05,841 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 1164 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-20 02:29:05,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-20 02:29:05,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 723. [2022-03-20 02:29:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 574 states have (on average 1.2700348432055748) internal successors, (729), 592 states have internal predecessors, (729), 74 states have call successors, (74), 50 states have call predecessors, (74), 74 states have return successors, (107), 89 states have call predecessors, (107), 68 states have call successors, (107) [2022-03-20 02:29:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 910 transitions. [2022-03-20 02:29:05,905 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 910 transitions. Word has length 69 [2022-03-20 02:29:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:05,906 INFO L478 AbstractCegarLoop]: Abstraction has 723 states and 910 transitions. [2022-03-20 02:29:05,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 910 transitions. [2022-03-20 02:29:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:29:05,907 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:05,907 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:05,907 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 02:29:05,907 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:05,907 INFO L85 PathProgramCache]: Analyzing trace with hash -51645449, now seen corresponding path program 1 times [2022-03-20 02:29:05,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:05,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360760687] [2022-03-20 02:29:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:05,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 02:29:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:29:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:06,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:06,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360760687] [2022-03-20 02:29:06,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360760687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:06,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:06,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-20 02:29:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355277480] [2022-03-20 02:29:06,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:06,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-20 02:29:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-20 02:29:06,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-20 02:29:06,245 INFO L87 Difference]: Start difference. First operand 723 states and 910 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:07,625 INFO L93 Difference]: Finished difference Result 787 states and 995 transitions. [2022-03-20 02:29:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-20 02:29:07,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-03-20 02:29:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:07,626 INFO L225 Difference]: With dead ends: 787 [2022-03-20 02:29:07,626 INFO L226 Difference]: Without dead ends: 757 [2022-03-20 02:29:07,627 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-03-20 02:29:07,627 INFO L913 BasicCegarLoop]: 434 mSDtfsCounter, 682 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:07,627 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [685 Valid, 2289 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:29:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-03-20 02:29:07,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 720. [2022-03-20 02:29:07,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 572 states have (on average 1.2692307692307692) internal successors, (726), 590 states have internal predecessors, (726), 73 states have call successors, (73), 50 states have call predecessors, (73), 74 states have return successors, (106), 88 states have call predecessors, (106), 67 states have call successors, (106) [2022-03-20 02:29:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 905 transitions. [2022-03-20 02:29:07,694 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 905 transitions. Word has length 69 [2022-03-20 02:29:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:07,694 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 905 transitions. [2022-03-20 02:29:07,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 905 transitions. [2022-03-20 02:29:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:29:07,695 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:07,695 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:07,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 02:29:07,696 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:07,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash 618518284, now seen corresponding path program 1 times [2022-03-20 02:29:07,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:07,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773320059] [2022-03-20 02:29:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:07,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:07,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773320059] [2022-03-20 02:29:07,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773320059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:07,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:07,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-20 02:29:07,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892409335] [2022-03-20 02:29:07,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:07,889 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-20 02:29:07,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:07,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-20 02:29:07,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-20 02:29:07,890 INFO L87 Difference]: Start difference. First operand 720 states and 905 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:09,123 INFO L93 Difference]: Finished difference Result 767 states and 969 transitions. [2022-03-20 02:29:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-20 02:29:09,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-03-20 02:29:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:09,124 INFO L225 Difference]: With dead ends: 767 [2022-03-20 02:29:09,124 INFO L226 Difference]: Without dead ends: 761 [2022-03-20 02:29:09,125 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-03-20 02:29:09,125 INFO L913 BasicCegarLoop]: 374 mSDtfsCounter, 1003 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:09,125 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 1612 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:29:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-03-20 02:29:09,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 717. [2022-03-20 02:29:09,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 569 states have (on average 1.2636203866432338) internal successors, (719), 587 states have internal predecessors, (719), 73 states have call successors, (73), 50 states have call predecessors, (73), 74 states have return successors, (106), 88 states have call predecessors, (106), 67 states have call successors, (106) [2022-03-20 02:29:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 898 transitions. [2022-03-20 02:29:09,192 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 898 transitions. Word has length 69 [2022-03-20 02:29:09,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:09,193 INFO L478 AbstractCegarLoop]: Abstraction has 717 states and 898 transitions. [2022-03-20 02:29:09,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 898 transitions. [2022-03-20 02:29:09,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:29:09,194 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:09,194 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:09,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 02:29:09,194 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:09,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:09,194 INFO L85 PathProgramCache]: Analyzing trace with hash 618241454, now seen corresponding path program 1 times [2022-03-20 02:29:09,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:09,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633540147] [2022-03-20 02:29:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:09,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633540147] [2022-03-20 02:29:09,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633540147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:09,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:09,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:09,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503612613] [2022-03-20 02:29:09,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:09,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:09,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:09,373 INFO L87 Difference]: Start difference. First operand 717 states and 898 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:10,364 INFO L93 Difference]: Finished difference Result 816 states and 1033 transitions. [2022-03-20 02:29:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 02:29:10,364 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), 3 states have call successors, (9), 9 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 69 [2022-03-20 02:29:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:10,366 INFO L225 Difference]: With dead ends: 816 [2022-03-20 02:29:10,366 INFO L226 Difference]: Without dead ends: 781 [2022-03-20 02:29:10,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-03-20 02:29:10,366 INFO L913 BasicCegarLoop]: 434 mSDtfsCounter, 1187 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:10,366 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 898 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 02:29:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-03-20 02:29:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 688. [2022-03-20 02:29:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 545 states have (on average 1.2623853211009175) internal successors, (688), 562 states have internal predecessors, (688), 72 states have call successors, (72), 49 states have call predecessors, (72), 70 states have return successors, (102), 84 states have call predecessors, (102), 66 states have call successors, (102) [2022-03-20 02:29:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 862 transitions. [2022-03-20 02:29:10,431 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 862 transitions. Word has length 69 [2022-03-20 02:29:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:10,432 INFO L478 AbstractCegarLoop]: Abstraction has 688 states and 862 transitions. [2022-03-20 02:29:10,432 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), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 862 transitions. [2022-03-20 02:29:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:29:10,433 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:10,433 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:10,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 02:29:10,433 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:10,433 INFO L85 PathProgramCache]: Analyzing trace with hash 711441589, now seen corresponding path program 1 times [2022-03-20 02:29:10,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:10,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898246810] [2022-03-20 02:29:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:10,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:10,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:10,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898246810] [2022-03-20 02:29:10,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898246810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:10,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:10,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:29:10,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571685236] [2022-03-20 02:29:10,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:10,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:29:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:10,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:29:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:29:10,571 INFO L87 Difference]: Start difference. First operand 688 states and 862 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:11,420 INFO L93 Difference]: Finished difference Result 751 states and 947 transitions. [2022-03-20 02:29:11,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:29:11,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-03-20 02:29:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:11,422 INFO L225 Difference]: With dead ends: 751 [2022-03-20 02:29:11,422 INFO L226 Difference]: Without dead ends: 711 [2022-03-20 02:29:11,423 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:11,423 INFO L913 BasicCegarLoop]: 431 mSDtfsCounter, 608 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:11,423 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 821 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 02:29:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-03-20 02:29:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 670. [2022-03-20 02:29:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 532 states have (on average 1.255639097744361) internal successors, (668), 548 states have internal predecessors, (668), 71 states have call successors, (71), 48 states have call predecessors, (71), 66 states have return successors, (98), 80 states have call predecessors, (98), 65 states have call successors, (98) [2022-03-20 02:29:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 837 transitions. [2022-03-20 02:29:11,489 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 837 transitions. Word has length 69 [2022-03-20 02:29:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:11,489 INFO L478 AbstractCegarLoop]: Abstraction has 670 states and 837 transitions. [2022-03-20 02:29:11,489 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 837 transitions. [2022-03-20 02:29:11,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 02:29:11,490 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:11,490 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:11,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 02:29:11,490 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:11,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash -645591887, now seen corresponding path program 1 times [2022-03-20 02:29:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:11,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081316864] [2022-03-20 02:29:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-20 02:29:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:29:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:11,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:11,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081316864] [2022-03-20 02:29:11,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081316864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:11,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:11,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:29:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664887979] [2022-03-20 02:29:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:11,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:29:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:11,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:29:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:11,672 INFO L87 Difference]: Start difference. First operand 670 states and 837 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:12,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:12,776 INFO L93 Difference]: Finished difference Result 749 states and 936 transitions. [2022-03-20 02:29:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-20 02:29:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-03-20 02:29:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:12,778 INFO L225 Difference]: With dead ends: 749 [2022-03-20 02:29:12,778 INFO L226 Difference]: Without dead ends: 711 [2022-03-20 02:29:12,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:29:12,779 INFO L913 BasicCegarLoop]: 419 mSDtfsCounter, 683 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:12,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 1316 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 02:29:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-03-20 02:29:12,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 670. [2022-03-20 02:29:12,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 532 states have (on average 1.2537593984962405) internal successors, (667), 548 states have internal predecessors, (667), 71 states have call successors, (71), 48 states have call predecessors, (71), 66 states have return successors, (98), 80 states have call predecessors, (98), 65 states have call successors, (98) [2022-03-20 02:29:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 836 transitions. [2022-03-20 02:29:12,841 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 836 transitions. Word has length 71 [2022-03-20 02:29:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:12,841 INFO L478 AbstractCegarLoop]: Abstraction has 670 states and 836 transitions. [2022-03-20 02:29:12,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 836 transitions. [2022-03-20 02:29:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 02:29:12,842 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:12,842 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:12,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 02:29:12,842 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1405392111, now seen corresponding path program 1 times [2022-03-20 02:29:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:12,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802917358] [2022-03-20 02:29:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:12,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-20 02:29:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:29:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:13,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:13,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802917358] [2022-03-20 02:29:13,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802917358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:13,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:13,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 02:29:13,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700281047] [2022-03-20 02:29:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:13,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 02:29:13,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 02:29:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:29:13,167 INFO L87 Difference]: Start difference. First operand 670 states and 836 transitions. Second operand has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:29:14,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:14,687 INFO L93 Difference]: Finished difference Result 747 states and 942 transitions. [2022-03-20 02:29:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 02:29:14,687 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2022-03-20 02:29:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:14,689 INFO L225 Difference]: With dead ends: 747 [2022-03-20 02:29:14,689 INFO L226 Difference]: Without dead ends: 709 [2022-03-20 02:29:14,689 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:29:14,690 INFO L913 BasicCegarLoop]: 428 mSDtfsCounter, 932 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 4203 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 4547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 4203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:14,690 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 2454 Invalid, 4547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 4203 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 02:29:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-03-20 02:29:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 665. [2022-03-20 02:29:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 528 states have (on average 1.25) internal successors, (660), 544 states have internal predecessors, (660), 70 states have call successors, (70), 48 states have call predecessors, (70), 66 states have return successors, (96), 79 states have call predecessors, (96), 64 states have call successors, (96) [2022-03-20 02:29:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 826 transitions. [2022-03-20 02:29:14,756 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 826 transitions. Word has length 71 [2022-03-20 02:29:14,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:14,756 INFO L478 AbstractCegarLoop]: Abstraction has 665 states and 826 transitions. [2022-03-20 02:29:14,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-20 02:29:14,756 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 826 transitions. [2022-03-20 02:29:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 02:29:14,757 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:14,757 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:14,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 02:29:14,757 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:14,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1361964370, now seen corresponding path program 1 times [2022-03-20 02:29:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:14,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519143180] [2022-03-20 02:29:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-20 02:29:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:29:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:14,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519143180] [2022-03-20 02:29:14,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519143180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:14,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:14,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:29:14,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286125557] [2022-03-20 02:29:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:14,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:29:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:29:14,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:14,929 INFO L87 Difference]: Start difference. First operand 665 states and 826 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:15,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:15,705 INFO L93 Difference]: Finished difference Result 742 states and 922 transitions. [2022-03-20 02:29:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:29:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-03-20 02:29:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:15,707 INFO L225 Difference]: With dead ends: 742 [2022-03-20 02:29:15,707 INFO L226 Difference]: Without dead ends: 698 [2022-03-20 02:29:15,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:29:15,708 INFO L913 BasicCegarLoop]: 408 mSDtfsCounter, 455 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:15,708 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 1285 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 02:29:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-03-20 02:29:15,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 659. [2022-03-20 02:29:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 523 states have (on average 1.2504780114722753) internal successors, (654), 539 states have internal predecessors, (654), 69 states have call successors, (69), 48 states have call predecessors, (69), 66 states have return successors, (95), 78 states have call predecessors, (95), 63 states have call successors, (95) [2022-03-20 02:29:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 818 transitions. [2022-03-20 02:29:15,773 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 818 transitions. Word has length 71 [2022-03-20 02:29:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:15,773 INFO L478 AbstractCegarLoop]: Abstraction has 659 states and 818 transitions. [2022-03-20 02:29:15,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:15,773 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 818 transitions. [2022-03-20 02:29:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 02:29:15,774 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:15,774 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:15,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 02:29:15,774 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:15,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash 696849523, now seen corresponding path program 1 times [2022-03-20 02:29:15,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411448532] [2022-03-20 02:29:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:16,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:16,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:16,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411448532] [2022-03-20 02:29:16,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411448532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:16,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:16,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-20 02:29:16,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787845776] [2022-03-20 02:29:16,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:16,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-20 02:29:16,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:16,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-20 02:29:16,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-20 02:29:16,031 INFO L87 Difference]: Start difference. First operand 659 states and 818 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:17,336 INFO L93 Difference]: Finished difference Result 889 states and 1102 transitions. [2022-03-20 02:29:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-20 02:29:17,336 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2022-03-20 02:29:17,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:17,338 INFO L225 Difference]: With dead ends: 889 [2022-03-20 02:29:17,338 INFO L226 Difference]: Without dead ends: 740 [2022-03-20 02:29:17,338 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:29:17,339 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 538 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:17,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 1951 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:29:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-03-20 02:29:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 665. [2022-03-20 02:29:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 529 states have (on average 1.2400756143667298) internal successors, (656), 545 states have internal predecessors, (656), 69 states have call successors, (69), 48 states have call predecessors, (69), 66 states have return successors, (95), 78 states have call predecessors, (95), 63 states have call successors, (95) [2022-03-20 02:29:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 820 transitions. [2022-03-20 02:29:17,406 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 820 transitions. Word has length 71 [2022-03-20 02:29:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:17,406 INFO L478 AbstractCegarLoop]: Abstraction has 665 states and 820 transitions. [2022-03-20 02:29:17,407 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-20 02:29:17,407 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 820 transitions. [2022-03-20 02:29:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 02:29:17,408 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:17,408 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:17,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 02:29:17,408 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2057821935, now seen corresponding path program 1 times [2022-03-20 02:29:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:17,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892925037] [2022-03-20 02:29:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:17,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:29:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:17,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:17,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892925037] [2022-03-20 02:29:17,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892925037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:17,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:17,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 02:29:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406674708] [2022-03-20 02:29:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:17,607 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 02:29:17,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 02:29:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-20 02:29:17,608 INFO L87 Difference]: Start difference. First operand 665 states and 820 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-20 02:29:18,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:18,939 INFO L93 Difference]: Finished difference Result 729 states and 905 transitions. [2022-03-20 02:29:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 02:29:18,940 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-03-20 02:29:18,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:18,941 INFO L225 Difference]: With dead ends: 729 [2022-03-20 02:29:18,941 INFO L226 Difference]: Without dead ends: 700 [2022-03-20 02:29:18,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:29:18,942 INFO L913 BasicCegarLoop]: 410 mSDtfsCounter, 449 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 4312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 4146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:18,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2509 Invalid, 4312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 4146 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 02:29:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-03-20 02:29:19,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 663. [2022-03-20 02:29:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 527 states have (on average 1.239089184060721) internal successors, (653), 543 states have internal predecessors, (653), 69 states have call successors, (69), 48 states have call predecessors, (69), 66 states have return successors, (95), 78 states have call predecessors, (95), 63 states have call successors, (95) [2022-03-20 02:29:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 817 transitions. [2022-03-20 02:29:19,006 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 817 transitions. Word has length 77 [2022-03-20 02:29:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:19,006 INFO L478 AbstractCegarLoop]: Abstraction has 663 states and 817 transitions. [2022-03-20 02:29:19,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-20 02:29:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 817 transitions. [2022-03-20 02:29:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 02:29:19,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:19,007 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:19,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-20 02:29:19,007 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1891319547, now seen corresponding path program 1 times [2022-03-20 02:29:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905824623] [2022-03-20 02:29:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-20 02:29:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-03-20 02:29:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:19,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905824623] [2022-03-20 02:29:19,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905824623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:19,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:19,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:29:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788932138] [2022-03-20 02:29:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:19,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:29:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:29:19,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:19,141 INFO L87 Difference]: Start difference. First operand 663 states and 817 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-20 02:29:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:19,831 INFO L93 Difference]: Finished difference Result 731 states and 898 transitions. [2022-03-20 02:29:19,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:19,832 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2022-03-20 02:29:19,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:19,833 INFO L225 Difference]: With dead ends: 731 [2022-03-20 02:29:19,833 INFO L226 Difference]: Without dead ends: 671 [2022-03-20 02:29:19,834 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:29:19,834 INFO L913 BasicCegarLoop]: 386 mSDtfsCounter, 802 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:19,834 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [803 Valid, 1037 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 02:29:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-03-20 02:29:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 647. [2022-03-20 02:29:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 514 states have (on average 1.235408560311284) internal successors, (635), 530 states have internal predecessors, (635), 66 states have call successors, (66), 48 states have call predecessors, (66), 66 states have return successors, (91), 75 states have call predecessors, (91), 60 states have call successors, (91) [2022-03-20 02:29:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 792 transitions. [2022-03-20 02:29:19,893 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 792 transitions. Word has length 78 [2022-03-20 02:29:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:19,893 INFO L478 AbstractCegarLoop]: Abstraction has 647 states and 792 transitions. [2022-03-20 02:29:19,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-20 02:29:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 792 transitions. [2022-03-20 02:29:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:29:19,894 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:19,894 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:19,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 02:29:19,894 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash -403390025, now seen corresponding path program 1 times [2022-03-20 02:29:19,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463368991] [2022-03-20 02:29:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:19,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-20 02:29:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:20,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:20,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463368991] [2022-03-20 02:29:20,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463368991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:20,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:20,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-20 02:29:20,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629972504] [2022-03-20 02:29:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:20,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:29:20,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:20,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:29:20,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:29:20,037 INFO L87 Difference]: Start difference. First operand 647 states and 792 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:20,664 INFO L93 Difference]: Finished difference Result 709 states and 864 transitions. [2022-03-20 02:29:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:29:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-03-20 02:29:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:20,665 INFO L225 Difference]: With dead ends: 709 [2022-03-20 02:29:20,665 INFO L226 Difference]: Without dead ends: 658 [2022-03-20 02:29:20,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-20 02:29:20,668 INFO L913 BasicCegarLoop]: 374 mSDtfsCounter, 895 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:20,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 1144 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 02:29:20,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-03-20 02:29:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 634. [2022-03-20 02:29:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 502 states have (on average 1.2310756972111554) internal successors, (618), 518 states have internal predecessors, (618), 65 states have call successors, (65), 48 states have call predecessors, (65), 66 states have return successors, (90), 74 states have call predecessors, (90), 59 states have call successors, (90) [2022-03-20 02:29:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 773 transitions. [2022-03-20 02:29:20,726 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 773 transitions. Word has length 73 [2022-03-20 02:29:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:20,726 INFO L478 AbstractCegarLoop]: Abstraction has 634 states and 773 transitions. [2022-03-20 02:29:20,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-20 02:29:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 773 transitions. [2022-03-20 02:29:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:29:20,727 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:20,728 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:20,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-20 02:29:20,728 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:20,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1773843285, now seen corresponding path program 1 times [2022-03-20 02:29:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:20,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741469358] [2022-03-20 02:29:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:20,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-20 02:29:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:20,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:20,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741469358] [2022-03-20 02:29:20,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741469358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:20,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:20,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 02:29:20,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041290855] [2022-03-20 02:29:20,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:20,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 02:29:20,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 02:29:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:29:20,995 INFO L87 Difference]: Start difference. First operand 634 states and 773 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-20 02:29:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:23,810 INFO L93 Difference]: Finished difference Result 1487 states and 1799 transitions. [2022-03-20 02:29:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-20 02:29:23,810 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2022-03-20 02:29:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:23,813 INFO L225 Difference]: With dead ends: 1487 [2022-03-20 02:29:23,813 INFO L226 Difference]: Without dead ends: 1340 [2022-03-20 02:29:23,813 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=676, Invalid=2630, Unknown=0, NotChecked=0, Total=3306 [2022-03-20 02:29:23,817 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 2456 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 3948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:23,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 1265 Invalid, 3948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 3184 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:29:23,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-03-20 02:29:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1028. [2022-03-20 02:29:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 819 states have (on average 1.2515262515262515) internal successors, (1025), 845 states have internal predecessors, (1025), 101 states have call successors, (101), 79 states have call predecessors, (101), 107 states have return successors, (149), 110 states have call predecessors, (149), 95 states have call successors, (149) [2022-03-20 02:29:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1275 transitions. [2022-03-20 02:29:23,921 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1275 transitions. Word has length 73 [2022-03-20 02:29:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:23,921 INFO L478 AbstractCegarLoop]: Abstraction has 1028 states and 1275 transitions. [2022-03-20 02:29:23,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-20 02:29:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1275 transitions. [2022-03-20 02:29:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:29:23,923 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:23,923 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:23,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-20 02:29:23,923 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:23,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:23,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1094571031, now seen corresponding path program 1 times [2022-03-20 02:29:23,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:23,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801525087] [2022-03-20 02:29:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:23,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:23,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-20 02:29:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-20 02:29:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:24,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801525087] [2022-03-20 02:29:24,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801525087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:24,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:24,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-20 02:29:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500259609] [2022-03-20 02:29:24,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:24,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-20 02:29:24,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:24,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-20 02:29:24,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:29:24,086 INFO L87 Difference]: Start difference. First operand 1028 states and 1275 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-20 02:29:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:25,469 INFO L93 Difference]: Finished difference Result 1359 states and 1652 transitions. [2022-03-20 02:29:25,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-20 02:29:25,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2022-03-20 02:29:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:25,472 INFO L225 Difference]: With dead ends: 1359 [2022-03-20 02:29:25,472 INFO L226 Difference]: Without dead ends: 1229 [2022-03-20 02:29:25,473 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-20 02:29:25,473 INFO L913 BasicCegarLoop]: 650 mSDtfsCounter, 1888 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:25,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1892 Valid, 1284 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 02:29:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-03-20 02:29:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1105. [2022-03-20 02:29:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 878 states have (on average 1.2391799544419135) internal successors, (1088), 900 states have internal predecessors, (1088), 113 states have call successors, (113), 83 states have call predecessors, (113), 113 states have return successors, (162), 126 states have call predecessors, (162), 107 states have call successors, (162) [2022-03-20 02:29:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1363 transitions. [2022-03-20 02:29:25,583 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1363 transitions. Word has length 73 [2022-03-20 02:29:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:25,583 INFO L478 AbstractCegarLoop]: Abstraction has 1105 states and 1363 transitions. [2022-03-20 02:29:25,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-20 02:29:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1363 transitions. [2022-03-20 02:29:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 02:29:25,585 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:25,585 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:25,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-20 02:29:25,585 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:25,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash -888306664, now seen corresponding path program 1 times [2022-03-20 02:29:25,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:25,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656795307] [2022-03-20 02:29:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:25,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-20 02:29:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:29:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-20 02:29:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:25,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:25,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656795307] [2022-03-20 02:29:25,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656795307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:25,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:25,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-20 02:29:25,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799409249] [2022-03-20 02:29:25,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:25,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-20 02:29:25,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:25,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-20 02:29:25,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:25,786 INFO L87 Difference]: Start difference. First operand 1105 states and 1363 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-20 02:29:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:27,026 INFO L93 Difference]: Finished difference Result 1178 states and 1449 transitions. [2022-03-20 02:29:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-20 02:29:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 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 75 [2022-03-20 02:29:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:27,028 INFO L225 Difference]: With dead ends: 1178 [2022-03-20 02:29:27,028 INFO L226 Difference]: Without dead ends: 1087 [2022-03-20 02:29:27,029 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-03-20 02:29:27,030 INFO L913 BasicCegarLoop]: 346 mSDtfsCounter, 648 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:27,030 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 1360 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 02:29:27,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-03-20 02:29:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1057. [2022-03-20 02:29:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 844 states have (on average 1.2417061611374407) internal successors, (1048), 866 states have internal predecessors, (1048), 103 states have call successors, (103), 79 states have call predecessors, (103), 109 states have return successors, (150), 116 states have call predecessors, (150), 97 states have call successors, (150) [2022-03-20 02:29:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1301 transitions. [2022-03-20 02:29:27,141 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1301 transitions. Word has length 75 [2022-03-20 02:29:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:27,141 INFO L478 AbstractCegarLoop]: Abstraction has 1057 states and 1301 transitions. [2022-03-20 02:29:27,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-20 02:29:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1301 transitions. [2022-03-20 02:29:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:29:27,144 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:27,145 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:27,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-20 02:29:27,145 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:27,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash 384049071, now seen corresponding path program 1 times [2022-03-20 02:29:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:27,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367157448] [2022-03-20 02:29:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:27,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:29:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-20 02:29:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:29:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-20 02:29:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-20 02:29:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-20 02:29:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-03-20 02:29:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:29:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:29:27,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:29:27,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367157448] [2022-03-20 02:29:27,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367157448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:29:27,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:29:27,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-20 02:29:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215551255] [2022-03-20 02:29:27,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:29:27,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-20 02:29:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:29:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-20 02:29:27,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:29:27,347 INFO L87 Difference]: Start difference. First operand 1057 states and 1301 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:29:28,189 INFO L93 Difference]: Finished difference Result 1132 states and 1387 transitions. [2022-03-20 02:29:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:29:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-03-20 02:29:28,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:29:28,191 INFO L225 Difference]: With dead ends: 1132 [2022-03-20 02:29:28,191 INFO L226 Difference]: Without dead ends: 1071 [2022-03-20 02:29:28,192 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:29:28,192 INFO L913 BasicCegarLoop]: 331 mSDtfsCounter, 314 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:29:28,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 1047 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 02:29:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-03-20 02:29:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1041. [2022-03-20 02:29:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 830 states have (on average 1.2409638554216869) internal successors, (1030), 852 states have internal predecessors, (1030), 101 states have call successors, (101), 79 states have call predecessors, (101), 109 states have return successors, (146), 114 states have call predecessors, (146), 95 states have call successors, (146) [2022-03-20 02:29:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1277 transitions. [2022-03-20 02:29:28,290 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1277 transitions. Word has length 73 [2022-03-20 02:29:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:29:28,290 INFO L478 AbstractCegarLoop]: Abstraction has 1041 states and 1277 transitions. [2022-03-20 02:29:28,290 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-20 02:29:28,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1277 transitions. [2022-03-20 02:29:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:29:28,292 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:29:28,292 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:28,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-20 02:29:28,292 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:29:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:29:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash -644807577, now seen corresponding path program 1 times [2022-03-20 02:29:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:29:28,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908561601] [2022-03-20 02:29:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:29:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:29:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 02:29:28,303 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 02:29:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 02:29:28,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 02:29:28,339 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 02:29:28,340 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 02:29:28,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-20 02:29:28,343 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:29:28,346 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 02:29:28,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 02:29:28 BoogieIcfgContainer [2022-03-20 02:29:28,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 02:29:28,429 INFO L158 Benchmark]: Toolchain (without parser) took 134694.13ms. Allocated memory was 169.9MB in the beginning and 641.7MB in the end (delta: 471.9MB). Free memory was 142.4MB in the beginning and 357.7MB in the end (delta: -215.3MB). Peak memory consumption was 256.3MB. Max. memory is 8.0GB. [2022-03-20 02:29:28,429 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 02:29:28,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.54ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 142.1MB in the beginning and 224.4MB in the end (delta: -82.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-03-20 02:29:28,429 INFO L158 Benchmark]: Boogie Preprocessor took 99.21ms. Allocated memory is still 270.5MB. Free memory was 224.4MB in the beginning and 219.3MB in the end (delta: 5.1MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-20 02:29:28,429 INFO L158 Benchmark]: RCFGBuilder took 1094.76ms. Allocated memory is still 270.5MB. Free memory was 219.3MB in the beginning and 205.1MB in the end (delta: 14.2MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. [2022-03-20 02:29:28,429 INFO L158 Benchmark]: TraceAbstraction took 133043.19ms. Allocated memory was 270.5MB in the beginning and 641.7MB in the end (delta: 371.2MB). Free memory was 204.6MB in the beginning and 357.7MB in the end (delta: -153.1MB). Peak memory consumption was 218.1MB. Max. memory is 8.0GB. [2022-03-20 02:29:28,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 435.54ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 142.1MB in the beginning and 224.4MB in the end (delta: -82.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 99.21ms. Allocated memory is still 270.5MB. Free memory was 224.4MB in the beginning and 219.3MB in the end (delta: 5.1MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1094.76ms. Allocated memory is still 270.5MB. Free memory was 219.3MB in the beginning and 205.1MB in the end (delta: 14.2MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. * TraceAbstraction took 133043.19ms. Allocated memory was 270.5MB in the beginning and 641.7MB in the end (delta: 371.2MB). Free memory was 204.6MB in the beginning and 357.7MB in the end (delta: -153.1MB). Peak memory consumption was 218.1MB. 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: 59]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [\old(compFptr)=147535, \old(compRegistered)=147529, \old(customIrp)=147518, \old(DC)=147533, \old(DeviceUsageTypePaging)=147522, \old(Executive)=147515, \old(IPC)=147524, \old(KernelMode)=147520, \old(lowerDriverReturn)=147513, \old(MPR1)=147526, \old(MPR3)=147536, \old(myStatus)=147532, \old(NP)=147516, \old(pended)=147519, \old(pirp)=147527, \old(routine)=147514, \old(s)=147521, \old(setEventCalled)=147517, \old(SKIP1)=147523, \old(SKIP2)=147530, \old(Suspended)=147528, \old(UNLOADED)=147534, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=0, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1755] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=5, UNLOADED=0] [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=4, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=4, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=4, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=-4, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=4, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=4, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=-4, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=4, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, Context=4, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=-4, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(Context)=4, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=4, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=-4, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=-3, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, Irp__PendingReturned=0, KernelMode=0, lcontext=4, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=-3, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioHPCdrDeviceControl(DeviceObject, Irp)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, CdAudioDeviceControl(devobj, pirp)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceUsageTypePaging)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(pirp)=0, \old(routine)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=-2, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 520 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 132.9s, OverallIterations: 70, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 112.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69224 SdHoareTripleChecker+Valid, 95.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68821 mSDsluCounter, 120765 SdHoareTripleChecker+Invalid, 81.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80771 mSDsCounter, 23715 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193516 IncrementalHoareTripleChecker+Invalid, 217231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23715 mSolverCounterUnsat, 39994 mSDtfsCounter, 193516 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2051 GetRequests, 904 SyntacticMatches, 18 SemanticMatches, 1129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2846 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1105occurred in iteration=67, InterpolantAutomatonStates: 914, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 69 MinimizatonAttempts, 7760 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 4338 NumberOfCodeBlocks, 4338 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 4267 ConstructedInterpolants, 0 QuantifiedInterpolants, 21692 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1689 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 72 InterpolantComputations, 69 PerfectInterpolantSequences, 16/20 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! [2022-03-20 02:29:28,444 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...