/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-05ce600 [2022-02-23 14:53:42,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 14:53:42,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 14:53:42,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 14:53:42,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 14:53:42,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 14:53:42,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 14:53:42,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 14:53:42,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 14:53:42,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 14:53:42,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 14:53:42,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 14:53:42,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 14:53:42,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 14:53:42,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 14:53:42,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 14:53:42,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 14:53:42,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 14:53:42,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 14:53:42,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 14:53:42,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 14:53:42,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 14:53:42,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 14:53:42,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 14:53:42,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 14:53:42,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 14:53:42,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 14:53:42,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 14:53:42,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-23 14:53:42,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 14:53:42,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 14:53:42,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-23 14:53:42,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-23 14:53:42,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-23 14:53:42,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-23 14:53:42,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-23 14:53:42,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-23 14:53:42,859 INFO L138 SettingsManager]: * Use SBE=true [2022-02-23 14:53:42,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 14:53:42,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 14:53:42,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 14:53:42,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 14:53:42,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 14:53:42,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-23 14:53:42,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 14:53:43,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 14:53:43,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 14:53:43,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 14:53:43,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 14:53:43,106 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 14:53:43,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-02-23 14:53:43,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8c8dde96/216722618a1845a0a7032bb766e31fb6/FLAG11b2c1958 [2022-02-23 14:53:43,609 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 14:53:43,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-02-23 14:53:43,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8c8dde96/216722618a1845a0a7032bb766e31fb6/FLAG11b2c1958 [2022-02-23 14:53:43,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8c8dde96/216722618a1845a0a7032bb766e31fb6 [2022-02-23 14:53:43,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 14:53:43,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-23 14:53:43,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 14:53:43,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 14:53:43,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 14:53:43,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 02:53:43" (1/1) ... [2022-02-23 14:53:43,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2342f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:43, skipping insertion in model container [2022-02-23 14:53:43,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 02:53:43" (1/1) ... [2022-02-23 14:53:43,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 14:53:43,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 14:53:44,130 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] [2022-02-23 14:53:44,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 14:53:44,236 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 14:53:44,246 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] [2022-02-23 14:53:44,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 14:53:44,336 INFO L208 MainTranslator]: Completed translation [2022-02-23 14:53:44,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44 WrapperNode [2022-02-23 14:53:44,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 14:53:44,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 14:53:44,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 14:53:44,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 14:53:44,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 14:53:44,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 14:53:44,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 14:53:44,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 14:53:44,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (1/1) ... [2022-02-23 14:53:44,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 14:53:44,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 14:53:44,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 14:53:44,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2022-02-23 14:53:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-02-23 14:53:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-02-23 14:53:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-02-23 14:53:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 14:53:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2022-02-23 14:53:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-02-23 14:53:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 14:53:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 14:53:44,676 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 14:53:44,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 14:53:44,837 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:44,924 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-02-23 14:53:44,925 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-02-23 14:53:44,928 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:44,948 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-02-23 14:53:44,949 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-02-23 14:53:44,962 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:44,982 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-02-23 14:53:44,982 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-02-23 14:53:45,046 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-02-23 14:53:45,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2022-02-23 14:53:45,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-02-23 14:53:45,089 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,212 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-02-23 14:53:45,212 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-02-23 14:53:45,213 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,232 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-02-23 14:53:45,233 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-02-23 14:53:45,268 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-02-23 14:53:45,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-02-23 14:53:45,292 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,404 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-02-23 14:53:45,405 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-02-23 14:53:45,412 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 14:53:45,415 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-02-23 14:53:45,415 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-02-23 14:53:45,433 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 14:53:45,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 14:53:45,446 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 14:53:45,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 02:53:45 BoogieIcfgContainer [2022-02-23 14:53:45,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 14:53:45,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 14:53:45,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 14:53:45,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 14:53:45,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 02:53:43" (1/3) ... [2022-02-23 14:53:45,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef90d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 02:53:45, skipping insertion in model container [2022-02-23 14:53:45,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:53:44" (2/3) ... [2022-02-23 14:53:45,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef90d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 02:53:45, skipping insertion in model container [2022-02-23 14:53:45,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 02:53:45" (3/3) ... [2022-02-23 14:53:45,458 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-02-23 14:53:45,462 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-23 14:53:45,462 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 14:53:45,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 14:53:45,513 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 14:53:45,514 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 14:53:45,550 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) [2022-02-23 14:53:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-23 14:53:45,556 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:45,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:45,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:45,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:45,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1971492104, now seen corresponding path program 1 times [2022-02-23 14:53:45,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:45,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158494393] [2022-02-23 14:53:45,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:45,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:45,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:45,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158494393] [2022-02-23 14:53:45,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158494393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:45,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:45,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 14:53:45,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103576430] [2022-02-23 14:53:45,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:45,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 14:53:45,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:45,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 14:53:45,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-23 14:53:45,826 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) [2022-02-23 14:53:47,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:47,741 INFO L93 Difference]: Finished difference Result 1047 states and 1683 transitions. [2022-02-23 14:53:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 14:53:47,743 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 [2022-02-23 14:53:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:47,755 INFO L225 Difference]: With dead ends: 1047 [2022-02-23 14:53:47,755 INFO L226 Difference]: Without dead ends: 665 [2022-02-23 14:53:47,760 INFO L932 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 [2022-02-23 14:53:47,763 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 399 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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 [2022-02-23 14:53:47,763 INFO L934 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] [2022-02-23 14:53:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-02-23 14:53:47,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2022-02-23 14:53:47,836 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) [2022-02-23 14:53:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2022-02-23 14:53:47,840 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2022-02-23 14:53:47,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:47,840 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2022-02-23 14:53:47,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-02-23 14:53:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2022-02-23 14:53:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-23 14:53:47,841 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:47,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:47,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 14:53:47,842 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:47,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1335659000, now seen corresponding path program 1 times [2022-02-23 14:53:47,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:47,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986019829] [2022-02-23 14:53:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:47,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:47,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986019829] [2022-02-23 14:53:47,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986019829] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:47,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:47,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 14:53:47,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56052880] [2022-02-23 14:53:47,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:47,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 14:53:47,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:47,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 14:53:47,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-23 14:53:47,996 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) [2022-02-23 14:53:49,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:49,417 INFO L93 Difference]: Finished difference Result 967 states and 1429 transitions. [2022-02-23 14:53:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 14:53:49,418 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 [2022-02-23 14:53:49,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:49,425 INFO L225 Difference]: With dead ends: 967 [2022-02-23 14:53:49,425 INFO L226 Difference]: Without dead ends: 846 [2022-02-23 14:53:49,426 INFO L932 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 [2022-02-23 14:53:49,428 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 1891 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-23 14:53:49,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 1015 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-23 14:53:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-02-23 14:53:49,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2022-02-23 14:53:49,481 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) [2022-02-23 14:53:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2022-02-23 14:53:49,484 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2022-02-23 14:53:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:49,484 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2022-02-23 14:53:49,484 INFO L471 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) [2022-02-23 14:53:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2022-02-23 14:53:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-23 14:53:49,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:49,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:49,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 14:53:49,486 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:49,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2015725837, now seen corresponding path program 1 times [2022-02-23 14:53:49,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:49,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140359539] [2022-02-23 14:53:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:49,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:49,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:49,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140359539] [2022-02-23 14:53:49,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140359539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:49,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:49,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 14:53:49,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180832489] [2022-02-23 14:53:49,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:49,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 14:53:49,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:49,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 14:53:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-23 14:53:49,616 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) [2022-02-23 14:53:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:51,359 INFO L93 Difference]: Finished difference Result 1148 states and 1650 transitions. [2022-02-23 14:53:51,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 14:53:51,359 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 [2022-02-23 14:53:51,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:51,363 INFO L225 Difference]: With dead ends: 1148 [2022-02-23 14:53:51,363 INFO L226 Difference]: Without dead ends: 970 [2022-02-23 14:53:51,364 INFO L932 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 [2022-02-23 14:53:51,365 INFO L933 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 [2022-02-23 14:53:51,365 INFO L934 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] [2022-02-23 14:53:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-02-23 14:53:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2022-02-23 14:53:51,399 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) [2022-02-23 14:53:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2022-02-23 14:53:51,402 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2022-02-23 14:53:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:51,402 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2022-02-23 14:53:51,403 INFO L471 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) [2022-02-23 14:53:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2022-02-23 14:53:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-02-23 14:53:51,404 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:51,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:51,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 14:53:51,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash -994008456, now seen corresponding path program 1 times [2022-02-23 14:53:51,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:51,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076498735] [2022-02-23 14:53:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:51,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:51,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076498735] [2022-02-23 14:53:51,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076498735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:51,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:51,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 14:53:51,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116026922] [2022-02-23 14:53:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:51,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 14:53:51,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 14:53:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-23 14:53:51,537 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) [2022-02-23 14:53:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:53,218 INFO L93 Difference]: Finished difference Result 1630 states and 2449 transitions. [2022-02-23 14:53:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 14:53:53,218 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 [2022-02-23 14:53:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:53,224 INFO L225 Difference]: With dead ends: 1630 [2022-02-23 14:53:53,224 INFO L226 Difference]: Without dead ends: 1344 [2022-02-23 14:53:53,226 INFO L932 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 [2022-02-23 14:53:53,226 INFO L933 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:53:53,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 1265 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:53:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-02-23 14:53:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2022-02-23 14:53:53,293 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) [2022-02-23 14:53:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2022-02-23 14:53:53,297 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2022-02-23 14:53:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:53,297 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2022-02-23 14:53:53,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-23 14:53:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2022-02-23 14:53:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-02-23 14:53:53,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:53,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:53,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 14:53:53,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:53,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash -987884657, now seen corresponding path program 1 times [2022-02-23 14:53:53,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:53,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100049002] [2022-02-23 14:53:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:53,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:53,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100049002] [2022-02-23 14:53:53,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100049002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:53,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:53,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-23 14:53:53,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226922178] [2022-02-23 14:53:53,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:53,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 14:53:53,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:53,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 14:53:53,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-23 14:53:53,460 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) [2022-02-23 14:53:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:55,322 INFO L93 Difference]: Finished difference Result 1632 states and 2483 transitions. [2022-02-23 14:53:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:53:55,322 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 [2022-02-23 14:53:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:55,326 INFO L225 Difference]: With dead ends: 1632 [2022-02-23 14:53:55,327 INFO L226 Difference]: Without dead ends: 1046 [2022-02-23 14:53:55,329 INFO L932 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 [2022-02-23 14:53:55,333 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 2784 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:53:55,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2790 Valid, 1026 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [990 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:53:55,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-02-23 14:53:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2022-02-23 14:53:55,378 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) [2022-02-23 14:53:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2022-02-23 14:53:55,381 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2022-02-23 14:53:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:55,382 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2022-02-23 14:53:55,382 INFO L471 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) [2022-02-23 14:53:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2022-02-23 14:53:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-23 14:53:55,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:55,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:55,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 14:53:55,385 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:55,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:55,385 INFO L85 PathProgramCache]: Analyzing trace with hash 450252455, now seen corresponding path program 1 times [2022-02-23 14:53:55,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:55,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834656051] [2022-02-23 14:53:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:55,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:55,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:55,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834656051] [2022-02-23 14:53:55,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834656051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:55,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:55,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 14:53:55,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052346979] [2022-02-23 14:53:55,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:55,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 14:53:55,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 14:53:55,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-23 14:53:55,514 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) [2022-02-23 14:53:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:57,388 INFO L93 Difference]: Finished difference Result 965 states and 1425 transitions. [2022-02-23 14:53:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 14:53:57,389 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 [2022-02-23 14:53:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:57,393 INFO L225 Difference]: With dead ends: 965 [2022-02-23 14:53:57,393 INFO L226 Difference]: Without dead ends: 961 [2022-02-23 14:53:57,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-23 14:53:57,394 INFO L933 BasicCegarLoop]: 713 mSDtfsCounter, 407 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:53:57,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 983 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:53:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-02-23 14:53:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2022-02-23 14:53:57,432 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) [2022-02-23 14:53:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2022-02-23 14:53:57,435 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2022-02-23 14:53:57,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:57,435 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2022-02-23 14:53:57,435 INFO L471 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) [2022-02-23 14:53:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2022-02-23 14:53:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-23 14:53:57,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:57,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:57,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 14:53:57,437 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -783054808, now seen corresponding path program 1 times [2022-02-23 14:53:57,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:57,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704879463] [2022-02-23 14:53:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:57,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:57,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:57,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704879463] [2022-02-23 14:53:57,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704879463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:57,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:57,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 14:53:57,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582164951] [2022-02-23 14:53:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:57,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 14:53:57,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 14:53:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-23 14:53:57,546 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) [2022-02-23 14:53:59,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:53:59,555 INFO L93 Difference]: Finished difference Result 1417 states and 2024 transitions. [2022-02-23 14:53:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:53:59,555 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 [2022-02-23 14:53:59,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:53:59,559 INFO L225 Difference]: With dead ends: 1417 [2022-02-23 14:53:59,560 INFO L226 Difference]: Without dead ends: 999 [2022-02-23 14:53:59,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-23 14:53:59,561 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 764 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:53:59,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 1253 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:53:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-02-23 14:53:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2022-02-23 14:53:59,600 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) [2022-02-23 14:53:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2022-02-23 14:53:59,602 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2022-02-23 14:53:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:53:59,602 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2022-02-23 14:53:59,602 INFO L471 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) [2022-02-23 14:53:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2022-02-23 14:53:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-23 14:53:59,604 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:53:59,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:53:59,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 14:53:59,604 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:53:59,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:53:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1815790808, now seen corresponding path program 1 times [2022-02-23 14:53:59,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:53:59,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713235135] [2022-02-23 14:53:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:53:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:53:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:59,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:53:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:53:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:53:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:53:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:53:59,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:53:59,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713235135] [2022-02-23 14:53:59,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713235135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:53:59,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:53:59,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 14:53:59,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451137748] [2022-02-23 14:53:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:53:59,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 14:53:59,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:53:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 14:53:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-23 14:53:59,804 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) [2022-02-23 14:54:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:01,087 INFO L93 Difference]: Finished difference Result 979 states and 1409 transitions. [2022-02-23 14:54:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 14:54:01,087 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 [2022-02-23 14:54:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:01,091 INFO L225 Difference]: With dead ends: 979 [2022-02-23 14:54:01,092 INFO L226 Difference]: Without dead ends: 959 [2022-02-23 14:54:01,092 INFO L932 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 [2022-02-23 14:54:01,092 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 1483 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:01,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 772 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:54:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-02-23 14:54:01,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2022-02-23 14:54:01,159 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) [2022-02-23 14:54:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2022-02-23 14:54:01,161 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2022-02-23 14:54:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:01,161 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2022-02-23 14:54:01,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (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) [2022-02-23 14:54:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2022-02-23 14:54:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-23 14:54:01,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:01,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:01,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 14:54:01,163 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:01,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 737122156, now seen corresponding path program 1 times [2022-02-23 14:54:01,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:01,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535782887] [2022-02-23 14:54:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:01,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-23 14:54:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:01,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:01,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535782887] [2022-02-23 14:54:01,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535782887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:01,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:01,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 14:54:01,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270236485] [2022-02-23 14:54:01,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:01,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 14:54:01,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:01,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 14:54:01,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-23 14:54:01,298 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) [2022-02-23 14:54:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:02,928 INFO L93 Difference]: Finished difference Result 1167 states and 1671 transitions. [2022-02-23 14:54:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 14:54:02,929 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 [2022-02-23 14:54:02,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:02,932 INFO L225 Difference]: With dead ends: 1167 [2022-02-23 14:54:02,932 INFO L226 Difference]: Without dead ends: 942 [2022-02-23 14:54:02,933 INFO L932 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 [2022-02-23 14:54:02,934 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 921 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:02,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 1383 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:54:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-02-23 14:54:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2022-02-23 14:54:02,976 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) [2022-02-23 14:54:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2022-02-23 14:54:02,978 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2022-02-23 14:54:02,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:02,978 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2022-02-23 14:54:02,978 INFO L471 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) [2022-02-23 14:54:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2022-02-23 14:54:02,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-23 14:54:02,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:02,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:02,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 14:54:02,980 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:02,980 INFO L85 PathProgramCache]: Analyzing trace with hash 8107196, now seen corresponding path program 1 times [2022-02-23 14:54:02,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:02,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001502301] [2022-02-23 14:54:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:02,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-02-23 14:54:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:03,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:03,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001502301] [2022-02-23 14:54:03,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001502301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:03,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:03,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 14:54:03,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404865209] [2022-02-23 14:54:03,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:03,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 14:54:03,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:03,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 14:54:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-23 14:54:03,075 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) [2022-02-23 14:54:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:04,320 INFO L93 Difference]: Finished difference Result 964 states and 1383 transitions. [2022-02-23 14:54:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 14:54:04,321 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 [2022-02-23 14:54:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:04,324 INFO L225 Difference]: With dead ends: 964 [2022-02-23 14:54:04,324 INFO L226 Difference]: Without dead ends: 897 [2022-02-23 14:54:04,324 INFO L932 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 [2022-02-23 14:54:04,325 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1147 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:04,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 1117 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:54:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-02-23 14:54:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2022-02-23 14:54:04,366 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) [2022-02-23 14:54:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2022-02-23 14:54:04,368 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2022-02-23 14:54:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:04,368 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2022-02-23 14:54:04,368 INFO L471 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) [2022-02-23 14:54:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2022-02-23 14:54:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-23 14:54:04,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:04,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:04,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 14:54:04,370 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash -776493065, now seen corresponding path program 1 times [2022-02-23 14:54:04,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:04,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183266896] [2022-02-23 14:54:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:04,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:04,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:04,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183266896] [2022-02-23 14:54:04,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183266896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:04,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:04,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-23 14:54:04,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649013283] [2022-02-23 14:54:04,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:04,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-23 14:54:04,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:04,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-23 14:54:04,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-02-23 14:54:04,519 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) [2022-02-23 14:54:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:06,876 INFO L93 Difference]: Finished difference Result 1067 states and 1515 transitions. [2022-02-23 14:54:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-23 14:54:06,876 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 [2022-02-23 14:54:06,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:06,879 INFO L225 Difference]: With dead ends: 1067 [2022-02-23 14:54:06,880 INFO L226 Difference]: Without dead ends: 1006 [2022-02-23 14:54:06,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-02-23 14:54:06,881 INFO L933 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, 2.0s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:06,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1832 Valid, 1794 Invalid, 3767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 3183 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-23 14:54:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-02-23 14:54:06,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2022-02-23 14:54:06,926 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) [2022-02-23 14:54:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2022-02-23 14:54:06,929 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2022-02-23 14:54:06,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:06,929 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2022-02-23 14:54:06,929 INFO L471 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) [2022-02-23 14:54:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2022-02-23 14:54:06,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 14:54:06,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:06,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:06,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 14:54:06,948 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:06,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1944299410, now seen corresponding path program 1 times [2022-02-23 14:54:06,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:06,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569581950] [2022-02-23 14:54:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:06,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:07,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:07,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569581950] [2022-02-23 14:54:07,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569581950] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:07,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:07,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-23 14:54:07,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874339293] [2022-02-23 14:54:07,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:07,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-23 14:54:07,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-23 14:54:07,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:54:07,085 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) [2022-02-23 14:54:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:08,639 INFO L93 Difference]: Finished difference Result 952 states and 1368 transitions. [2022-02-23 14:54:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-23 14:54:08,639 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 [2022-02-23 14:54:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:08,642 INFO L225 Difference]: With dead ends: 952 [2022-02-23 14:54:08,642 INFO L226 Difference]: Without dead ends: 924 [2022-02-23 14:54:08,643 INFO L932 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 [2022-02-23 14:54:08,643 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 2169 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:08,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 1424 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-23 14:54:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-02-23 14:54:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 797. [2022-02-23 14:54:08,703 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) [2022-02-23 14:54:08,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2022-02-23 14:54:08,705 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2022-02-23 14:54:08,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:08,705 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2022-02-23 14:54:08,706 INFO L471 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) [2022-02-23 14:54:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2022-02-23 14:54:08,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 14:54:08,707 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:08,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:08,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 14:54:08,707 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:08,708 INFO L85 PathProgramCache]: Analyzing trace with hash -49845296, now seen corresponding path program 1 times [2022-02-23 14:54:08,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:08,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815602258] [2022-02-23 14:54:08,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:08,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:08,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:08,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815602258] [2022-02-23 14:54:08,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815602258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:08,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:08,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:54:08,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033800083] [2022-02-23 14:54:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:08,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:54:08,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:54:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:54:08,871 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) [2022-02-23 14:54:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:10,628 INFO L93 Difference]: Finished difference Result 978 states and 1402 transitions. [2022-02-23 14:54:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:54:10,629 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 [2022-02-23 14:54:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:10,631 INFO L225 Difference]: With dead ends: 978 [2022-02-23 14:54:10,631 INFO L226 Difference]: Without dead ends: 914 [2022-02-23 14:54:10,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:54:10,632 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 2233 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:10,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 1507 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-23 14:54:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-02-23 14:54:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2022-02-23 14:54:10,679 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) [2022-02-23 14:54:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2022-02-23 14:54:10,681 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2022-02-23 14:54:10,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:10,681 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2022-02-23 14:54:10,681 INFO L471 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) [2022-02-23 14:54:10,681 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2022-02-23 14:54:10,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 14:54:10,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:10,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:10,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 14:54:10,683 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:10,683 INFO L85 PathProgramCache]: Analyzing trace with hash 96847506, now seen corresponding path program 1 times [2022-02-23 14:54:10,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:10,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514395965] [2022-02-23 14:54:10,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:10,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:10,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:10,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514395965] [2022-02-23 14:54:10,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514395965] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:10,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:10,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 14:54:10,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683127398] [2022-02-23 14:54:10,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:10,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 14:54:10,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:10,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 14:54:10,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-02-23 14:54:10,811 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) [2022-02-23 14:54:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:12,388 INFO L93 Difference]: Finished difference Result 1090 states and 1555 transitions. [2022-02-23 14:54:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 14:54:12,389 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 [2022-02-23 14:54:12,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:12,392 INFO L225 Difference]: With dead ends: 1090 [2022-02-23 14:54:12,392 INFO L226 Difference]: Without dead ends: 1074 [2022-02-23 14:54:12,393 INFO L932 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 [2022-02-23 14:54:12,393 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 1242 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:12,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 1361 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-23 14:54:12,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-02-23 14:54:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2022-02-23 14:54:12,447 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) [2022-02-23 14:54:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2022-02-23 14:54:12,449 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2022-02-23 14:54:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:12,449 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2022-02-23 14:54:12,449 INFO L471 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) [2022-02-23 14:54:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2022-02-23 14:54:12,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-23 14:54:12,451 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:12,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:12,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 14:54:12,451 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash 637282241, now seen corresponding path program 1 times [2022-02-23 14:54:12,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:12,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558352782] [2022-02-23 14:54:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:12,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:12,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558352782] [2022-02-23 14:54:12,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558352782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:12,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:12,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-23 14:54:12,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342304770] [2022-02-23 14:54:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:12,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 14:54:12,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 14:54:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-02-23 14:54:12,596 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) [2022-02-23 14:54:14,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:14,256 INFO L93 Difference]: Finished difference Result 996 states and 1410 transitions. [2022-02-23 14:54:14,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 14:54:14,256 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 [2022-02-23 14:54:14,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:14,259 INFO L225 Difference]: With dead ends: 996 [2022-02-23 14:54:14,259 INFO L226 Difference]: Without dead ends: 991 [2022-02-23 14:54:14,260 INFO L932 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 [2022-02-23 14:54:14,260 INFO L933 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 [2022-02-23 14:54:14,260 INFO L934 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] [2022-02-23 14:54:14,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-02-23 14:54:14,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 867. [2022-02-23 14:54:14,316 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) [2022-02-23 14:54:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1188 transitions. [2022-02-23 14:54:14,318 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1188 transitions. Word has length 52 [2022-02-23 14:54:14,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:14,318 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1188 transitions. [2022-02-23 14:54:14,318 INFO L471 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) [2022-02-23 14:54:14,318 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1188 transitions. [2022-02-23 14:54:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-23 14:54:14,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:14,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:14,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 14:54:14,320 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash 708397377, now seen corresponding path program 1 times [2022-02-23 14:54:14,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:14,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332187459] [2022-02-23 14:54:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-23 14:54:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-23 14:54:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:14,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:14,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332187459] [2022-02-23 14:54:14,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332187459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:14,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:14,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-23 14:54:14,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101738243] [2022-02-23 14:54:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:14,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-23 14:54:14,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:14,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-23 14:54:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-23 14:54:14,439 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) [2022-02-23 14:54:16,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:16,254 INFO L93 Difference]: Finished difference Result 1203 states and 1692 transitions. [2022-02-23 14:54:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:54:16,255 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 [2022-02-23 14:54:16,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:16,257 INFO L225 Difference]: With dead ends: 1203 [2022-02-23 14:54:16,258 INFO L226 Difference]: Without dead ends: 956 [2022-02-23 14:54:16,258 INFO L932 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 [2022-02-23 14:54:16,259 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 685 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:16,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 1195 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-23 14:54:16,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-02-23 14:54:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 836. [2022-02-23 14:54:16,311 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) [2022-02-23 14:54:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2022-02-23 14:54:16,313 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 54 [2022-02-23 14:54:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:16,313 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2022-02-23 14:54:16,313 INFO L471 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) [2022-02-23 14:54:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2022-02-23 14:54:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 14:54:16,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:16,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:16,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 14:54:16,315 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:16,316 INFO L85 PathProgramCache]: Analyzing trace with hash -848829632, now seen corresponding path program 1 times [2022-02-23 14:54:16,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:16,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436486235] [2022-02-23 14:54:16,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:16,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:16,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:16,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436486235] [2022-02-23 14:54:16,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436486235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:16,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:16,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:54:16,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281369039] [2022-02-23 14:54:16,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:16,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:54:16,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:16,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:54:16,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:54:16,470 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) [2022-02-23 14:54:18,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:18,596 INFO L93 Difference]: Finished difference Result 971 states and 1378 transitions. [2022-02-23 14:54:18,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-23 14:54:18,596 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 [2022-02-23 14:54:18,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:18,599 INFO L225 Difference]: With dead ends: 971 [2022-02-23 14:54:18,599 INFO L226 Difference]: Without dead ends: 967 [2022-02-23 14:54:18,600 INFO L932 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 [2022-02-23 14:54:18,600 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 720 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 3917 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:18,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2378 Invalid, 4196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3917 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-23 14:54:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-02-23 14:54:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2022-02-23 14:54:18,656 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) [2022-02-23 14:54:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1157 transitions. [2022-02-23 14:54:18,658 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1157 transitions. Word has length 51 [2022-02-23 14:54:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:18,658 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1157 transitions. [2022-02-23 14:54:18,658 INFO L471 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) [2022-02-23 14:54:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1157 transitions. [2022-02-23 14:54:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 14:54:18,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:18,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:18,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 14:54:18,660 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash -849106462, now seen corresponding path program 1 times [2022-02-23 14:54:18,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:18,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048788846] [2022-02-23 14:54:18,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:18,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:18,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:18,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048788846] [2022-02-23 14:54:18,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048788846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:18,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:18,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:54:18,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437653790] [2022-02-23 14:54:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:18,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:54:18,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:54:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:54:18,814 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) [2022-02-23 14:54:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:21,071 INFO L93 Difference]: Finished difference Result 986 states and 1394 transitions. [2022-02-23 14:54:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:54:21,071 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 [2022-02-23 14:54:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:21,075 INFO L225 Difference]: With dead ends: 986 [2022-02-23 14:54:21,075 INFO L226 Difference]: Without dead ends: 962 [2022-02-23 14:54:21,076 INFO L932 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 [2022-02-23 14:54:21,076 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 722 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:21,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 2457 Invalid, 4123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-23 14:54:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-02-23 14:54:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 842. [2022-02-23 14:54:21,160 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) [2022-02-23 14:54:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2022-02-23 14:54:21,161 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2022-02-23 14:54:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:21,162 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2022-02-23 14:54:21,162 INFO L471 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) [2022-02-23 14:54:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2022-02-23 14:54:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-23 14:54:21,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:21,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:21,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 14:54:21,166 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1275498861, now seen corresponding path program 1 times [2022-02-23 14:54:21,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:21,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346602250] [2022-02-23 14:54:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:21,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:21,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346602250] [2022-02-23 14:54:21,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346602250] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:21,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:21,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:54:21,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679074808] [2022-02-23 14:54:21,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:21,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:54:21,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:54:21,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:54:21,410 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) [2022-02-23 14:54:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:23,553 INFO L93 Difference]: Finished difference Result 974 states and 1378 transitions. [2022-02-23 14:54:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:54:23,554 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 [2022-02-23 14:54:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:23,557 INFO L225 Difference]: With dead ends: 974 [2022-02-23 14:54:23,557 INFO L226 Difference]: Without dead ends: 968 [2022-02-23 14:54:23,557 INFO L932 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 [2022-02-23 14:54:23,558 INFO L933 BasicCegarLoop]: 659 mSDtfsCounter, 1241 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:23,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 1409 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:54:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-02-23 14:54:23,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2022-02-23 14:54:23,619 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) [2022-02-23 14:54:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2022-02-23 14:54:23,621 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2022-02-23 14:54:23,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:23,621 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2022-02-23 14:54:23,621 INFO L471 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) [2022-02-23 14:54:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2022-02-23 14:54:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-23 14:54:23,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:23,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:23,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 14:54:23,625 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -204304198, now seen corresponding path program 1 times [2022-02-23 14:54:23,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:23,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673448308] [2022-02-23 14:54:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:54:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:23,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:23,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673448308] [2022-02-23 14:54:23,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673448308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:23,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:23,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-23 14:54:23,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106103498] [2022-02-23 14:54:23,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:23,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 14:54:23,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:23,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 14:54:23,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-23 14:54:23,762 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) [2022-02-23 14:54:25,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:25,926 INFO L93 Difference]: Finished difference Result 979 states and 1383 transitions. [2022-02-23 14:54:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-23 14:54:25,927 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 [2022-02-23 14:54:25,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:25,931 INFO L225 Difference]: With dead ends: 979 [2022-02-23 14:54:25,931 INFO L226 Difference]: Without dead ends: 943 [2022-02-23 14:54:25,931 INFO L932 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 [2022-02-23 14:54:25,932 INFO L933 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:25,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 1285 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:54:25,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-02-23 14:54:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2022-02-23 14:54:25,998 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) [2022-02-23 14:54:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2022-02-23 14:54:26,000 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2022-02-23 14:54:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:26,000 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2022-02-23 14:54:26,000 INFO L471 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) [2022-02-23 14:54:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2022-02-23 14:54:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-23 14:54:26,001 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:26,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:26,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 14:54:26,002 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1517780378, now seen corresponding path program 1 times [2022-02-23 14:54:26,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:26,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340312657] [2022-02-23 14:54:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:26,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:26,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340312657] [2022-02-23 14:54:26,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340312657] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:26,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:26,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:54:26,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162865494] [2022-02-23 14:54:26,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:26,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:54:26,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:54:26,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:54:26,199 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) [2022-02-23 14:54:27,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:27,658 INFO L93 Difference]: Finished difference Result 945 states and 1345 transitions. [2022-02-23 14:54:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:54:27,659 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 [2022-02-23 14:54:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:27,662 INFO L225 Difference]: With dead ends: 945 [2022-02-23 14:54:27,662 INFO L226 Difference]: Without dead ends: 939 [2022-02-23 14:54:27,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:54:27,663 INFO L933 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 [2022-02-23 14:54:27,663 INFO L934 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] [2022-02-23 14:54:27,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-02-23 14:54:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2022-02-23 14:54:27,723 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) [2022-02-23 14:54:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2022-02-23 14:54:27,724 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2022-02-23 14:54:27,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:27,724 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2022-02-23 14:54:27,725 INFO L471 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) [2022-02-23 14:54:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2022-02-23 14:54:27,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-23 14:54:27,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:27,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:27,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 14:54:27,726 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:27,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 505594524, now seen corresponding path program 1 times [2022-02-23 14:54:27,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:27,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130961331] [2022-02-23 14:54:27,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:27,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:27,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:27,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130961331] [2022-02-23 14:54:27,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130961331] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:27,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:27,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-23 14:54:27,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165038796] [2022-02-23 14:54:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:27,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-23 14:54:27,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-23 14:54:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-23 14:54:27,913 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) [2022-02-23 14:54:29,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:29,837 INFO L93 Difference]: Finished difference Result 966 states and 1372 transitions. [2022-02-23 14:54:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-23 14:54:29,838 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 [2022-02-23 14:54:29,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:29,840 INFO L225 Difference]: With dead ends: 966 [2022-02-23 14:54:29,840 INFO L226 Difference]: Without dead ends: 926 [2022-02-23 14:54:29,841 INFO L932 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 [2022-02-23 14:54:29,841 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 402 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 4990 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:29,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 2684 Invalid, 5158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4990 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:54:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-02-23 14:54:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2022-02-23 14:54:29,901 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) [2022-02-23 14:54:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2022-02-23 14:54:29,902 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2022-02-23 14:54:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:29,902 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2022-02-23 14:54:29,902 INFO L471 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) [2022-02-23 14:54:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2022-02-23 14:54:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-23 14:54:29,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:29,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:29,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 14:54:29,904 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1791275328, now seen corresponding path program 1 times [2022-02-23 14:54:29,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:29,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918282986] [2022-02-23 14:54:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:29,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-02-23 14:54:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:30,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:30,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918282986] [2022-02-23 14:54:30,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918282986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:30,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:30,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-23 14:54:30,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456464210] [2022-02-23 14:54:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:30,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-23 14:54:30,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-23 14:54:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-02-23 14:54:30,109 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) [2022-02-23 14:54:32,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:32,781 INFO L93 Difference]: Finished difference Result 942 states and 1326 transitions. [2022-02-23 14:54:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-23 14:54:32,782 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 [2022-02-23 14:54:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:32,785 INFO L225 Difference]: With dead ends: 942 [2022-02-23 14:54:32,785 INFO L226 Difference]: Without dead ends: 924 [2022-02-23 14:54:32,785 INFO L932 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 [2022-02-23 14:54:32,785 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 351 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 5511 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:32,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2806 Invalid, 5651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5511 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 14:54:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-02-23 14:54:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2022-02-23 14:54:32,845 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) [2022-02-23 14:54:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2022-02-23 14:54:32,847 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2022-02-23 14:54:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:32,847 INFO L470 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2022-02-23 14:54:32,847 INFO L471 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) [2022-02-23 14:54:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2022-02-23 14:54:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-23 14:54:32,849 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:32,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:32,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 14:54:32,849 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:32,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 388427064, now seen corresponding path program 1 times [2022-02-23 14:54:32,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:32,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672183124] [2022-02-23 14:54:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-02-23 14:54:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:32,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:33,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:33,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672183124] [2022-02-23 14:54:33,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672183124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:33,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:33,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-23 14:54:33,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168898520] [2022-02-23 14:54:33,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:33,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-23 14:54:33,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:33,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-23 14:54:33,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-02-23 14:54:33,047 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) [2022-02-23 14:54:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:35,155 INFO L93 Difference]: Finished difference Result 937 states and 1319 transitions. [2022-02-23 14:54:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-23 14:54:35,155 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 [2022-02-23 14:54:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:35,158 INFO L225 Difference]: With dead ends: 937 [2022-02-23 14:54:35,158 INFO L226 Difference]: Without dead ends: 919 [2022-02-23 14:54:35,159 INFO L932 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 [2022-02-23 14:54:35,159 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 988 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 4646 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:35,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 2653 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 4646 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-23 14:54:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-02-23 14:54:35,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2022-02-23 14:54:35,228 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) [2022-02-23 14:54:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2022-02-23 14:54:35,230 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2022-02-23 14:54:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:35,230 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2022-02-23 14:54:35,230 INFO L471 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) [2022-02-23 14:54:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2022-02-23 14:54:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-23 14:54:35,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:35,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:35,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 14:54:35,233 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:35,234 INFO L85 PathProgramCache]: Analyzing trace with hash 562366210, now seen corresponding path program 1 times [2022-02-23 14:54:35,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:35,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081567728] [2022-02-23 14:54:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:35,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:54:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:54:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:35,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:35,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081567728] [2022-02-23 14:54:35,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081567728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:35,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:35,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-23 14:54:35,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012376141] [2022-02-23 14:54:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:35,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-23 14:54:35,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:35,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-23 14:54:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:54:35,421 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) [2022-02-23 14:54:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:36,940 INFO L93 Difference]: Finished difference Result 984 states and 1370 transitions. [2022-02-23 14:54:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-23 14:54:36,941 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 [2022-02-23 14:54:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:36,944 INFO L225 Difference]: With dead ends: 984 [2022-02-23 14:54:36,944 INFO L226 Difference]: Without dead ends: 941 [2022-02-23 14:54:36,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-02-23 14:54:36,945 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 1877 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:36,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1887 Valid, 1218 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-23 14:54:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-02-23 14:54:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2022-02-23 14:54:37,026 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) [2022-02-23 14:54:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2022-02-23 14:54:37,028 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2022-02-23 14:54:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:37,028 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2022-02-23 14:54:37,028 INFO L471 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) [2022-02-23 14:54:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2022-02-23 14:54:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-23 14:54:37,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:37,030 INFO L514 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] [2022-02-23 14:54:37,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 14:54:37,030 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:37,030 INFO L85 PathProgramCache]: Analyzing trace with hash -514626408, now seen corresponding path program 1 times [2022-02-23 14:54:37,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:37,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408665613] [2022-02-23 14:54:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-23 14:54:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-23 14:54:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-23 14:54:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:37,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:37,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408665613] [2022-02-23 14:54:37,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408665613] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 14:54:37,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113938769] [2022-02-23 14:54:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:37,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 14:54:37,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 14:54:37,212 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) [2022-02-23 14:54:37,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 14:54:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:37,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-23 14:54:37,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 14:54:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:37,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 14:54:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:37,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113938769] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 14:54:37,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 14:54:37,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 15 [2022-02-23 14:54:37,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543702733] [2022-02-23 14:54:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:37,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 14:54:37,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:37,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 14:54:37,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-02-23 14:54:37,827 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) [2022-02-23 14:54:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:38,221 INFO L93 Difference]: Finished difference Result 1117 states and 1518 transitions. [2022-02-23 14:54:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 14:54:38,221 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 [2022-02-23 14:54:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:38,224 INFO L225 Difference]: With dead ends: 1117 [2022-02-23 14:54:38,224 INFO L226 Difference]: Without dead ends: 953 [2022-02-23 14:54:38,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 151 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:54:38,225 INFO L933 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 [2022-02-23 14:54:38,225 INFO L934 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] [2022-02-23 14:54:38,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-02-23 14:54:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 837. [2022-02-23 14:54:38,295 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) [2022-02-23 14:54:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1142 transitions. [2022-02-23 14:54:38,296 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1142 transitions. Word has length 74 [2022-02-23 14:54:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:38,297 INFO L470 AbstractCegarLoop]: Abstraction has 837 states and 1142 transitions. [2022-02-23 14:54:38,297 INFO L471 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) [2022-02-23 14:54:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1142 transitions. [2022-02-23 14:54:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-23 14:54:38,298 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:38,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:38,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 14:54:38,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-23 14:54:38,517 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:38,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 233977310, now seen corresponding path program 1 times [2022-02-23 14:54:38,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:38,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420587047] [2022-02-23 14:54:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-23 14:54:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:38,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:38,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420587047] [2022-02-23 14:54:38,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420587047] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:38,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:38,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-23 14:54:38,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15963256] [2022-02-23 14:54:38,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:38,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-23 14:54:38,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:38,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-23 14:54:38,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:54:38,844 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) [2022-02-23 14:54:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:41,262 INFO L93 Difference]: Finished difference Result 984 states and 1382 transitions. [2022-02-23 14:54:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-23 14:54:41,270 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 [2022-02-23 14:54:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:41,273 INFO L225 Difference]: With dead ends: 984 [2022-02-23 14:54:41,274 INFO L226 Difference]: Without dead ends: 960 [2022-02-23 14:54:41,274 INFO L932 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 [2022-02-23 14:54:41,274 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 403 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 6400 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:41,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 3370 Invalid, 6573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 6400 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-23 14:54:41,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-02-23 14:54:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 835. [2022-02-23 14:54:41,346 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) [2022-02-23 14:54:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1138 transitions. [2022-02-23 14:54:41,348 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1138 transitions. Word has length 62 [2022-02-23 14:54:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:41,348 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 1138 transitions. [2022-02-23 14:54:41,348 INFO L471 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) [2022-02-23 14:54:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1138 transitions. [2022-02-23 14:54:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-23 14:54:41,349 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:41,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:41,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 14:54:41,350 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:41,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:41,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2049298278, now seen corresponding path program 1 times [2022-02-23 14:54:41,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:41,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103950941] [2022-02-23 14:54:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:41,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:41,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:41,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103950941] [2022-02-23 14:54:41,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103950941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:41,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:41,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-23 14:54:41,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88731633] [2022-02-23 14:54:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:41,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-23 14:54:41,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:41,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-23 14:54:41,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:54:41,592 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) [2022-02-23 14:54:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:44,328 INFO L93 Difference]: Finished difference Result 982 states and 1378 transitions. [2022-02-23 14:54:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-23 14:54:44,329 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 [2022-02-23 14:54:44,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:44,331 INFO L225 Difference]: With dead ends: 982 [2022-02-23 14:54:44,331 INFO L226 Difference]: Without dead ends: 956 [2022-02-23 14:54:44,332 INFO L932 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 [2022-02-23 14:54:44,332 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1011 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 6760 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:44,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 3425 Invalid, 7181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 6760 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 14:54:44,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-02-23 14:54:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 834. [2022-02-23 14:54:44,399 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) [2022-02-23 14:54:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1127 transitions. [2022-02-23 14:54:44,401 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1127 transitions. Word has length 59 [2022-02-23 14:54:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:44,401 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 1127 transitions. [2022-02-23 14:54:44,401 INFO L471 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) [2022-02-23 14:54:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1127 transitions. [2022-02-23 14:54:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-23 14:54:44,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:44,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:44,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 14:54:44,403 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1081135518, now seen corresponding path program 1 times [2022-02-23 14:54:44,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:44,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795636469] [2022-02-23 14:54:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:44,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:44,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:44,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795636469] [2022-02-23 14:54:44,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795636469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:44,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:44,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-23 14:54:44,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680494780] [2022-02-23 14:54:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:44,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-23 14:54:44,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-23 14:54:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:54:44,630 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) [2022-02-23 14:54:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:47,230 INFO L93 Difference]: Finished difference Result 971 states and 1352 transitions. [2022-02-23 14:54:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-23 14:54:47,230 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 [2022-02-23 14:54:47,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:47,233 INFO L225 Difference]: With dead ends: 971 [2022-02-23 14:54:47,233 INFO L226 Difference]: Without dead ends: 951 [2022-02-23 14:54:47,234 INFO L932 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 [2022-02-23 14:54:47,234 INFO L933 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 [2022-02-23 14:54:47,235 INFO L934 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] [2022-02-23 14:54:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-02-23 14:54:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 831. [2022-02-23 14:54:47,305 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) [2022-02-23 14:54:47,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1122 transitions. [2022-02-23 14:54:47,306 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1122 transitions. Word has length 58 [2022-02-23 14:54:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:47,307 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1122 transitions. [2022-02-23 14:54:47,307 INFO L471 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) [2022-02-23 14:54:47,307 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1122 transitions. [2022-02-23 14:54:47,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-23 14:54:47,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:47,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:47,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 14:54:47,309 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:47,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:47,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1820752266, now seen corresponding path program 1 times [2022-02-23 14:54:47,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:47,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902389981] [2022-02-23 14:54:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:47,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-02-23 14:54:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:47,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:47,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902389981] [2022-02-23 14:54:47,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902389981] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:47,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:47,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-23 14:54:47,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18348130] [2022-02-23 14:54:47,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:47,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-23 14:54:47,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:47,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-23 14:54:47,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:54:47,517 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) [2022-02-23 14:54:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:48,964 INFO L93 Difference]: Finished difference Result 1004 states and 1384 transitions. [2022-02-23 14:54:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-23 14:54:48,965 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 [2022-02-23 14:54:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:48,967 INFO L225 Difference]: With dead ends: 1004 [2022-02-23 14:54:48,967 INFO L226 Difference]: Without dead ends: 936 [2022-02-23 14:54:48,968 INFO L932 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 [2022-02-23 14:54:48,969 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 1287 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:48,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1291 Valid, 2345 Invalid, 4249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-23 14:54:48,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-02-23 14:54:49,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 819. [2022-02-23 14:54:49,037 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) [2022-02-23 14:54:49,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1101 transitions. [2022-02-23 14:54:49,038 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1101 transitions. Word has length 59 [2022-02-23 14:54:49,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:49,038 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1101 transitions. [2022-02-23 14:54:49,039 INFO L471 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) [2022-02-23 14:54:49,039 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1101 transitions. [2022-02-23 14:54:49,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-23 14:54:49,040 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:49,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:49,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 14:54:49,041 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:49,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 600816654, now seen corresponding path program 1 times [2022-02-23 14:54:49,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:49,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373694580] [2022-02-23 14:54:49,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:49,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-02-23 14:54:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:49,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:49,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373694580] [2022-02-23 14:54:49,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373694580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:49,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:49,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-23 14:54:49,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58229968] [2022-02-23 14:54:49,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:49,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-23 14:54:49,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-23 14:54:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-23 14:54:49,196 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) [2022-02-23 14:54:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:50,526 INFO L93 Difference]: Finished difference Result 1100 states and 1559 transitions. [2022-02-23 14:54:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-23 14:54:50,527 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 [2022-02-23 14:54:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:50,529 INFO L225 Difference]: With dead ends: 1100 [2022-02-23 14:54:50,529 INFO L226 Difference]: Without dead ends: 989 [2022-02-23 14:54:50,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-23 14:54:50,530 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 974 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:50,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 1846 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2510 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-23 14:54:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-02-23 14:54:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 826. [2022-02-23 14:54:50,620 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) [2022-02-23 14:54:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1117 transitions. [2022-02-23 14:54:50,622 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1117 transitions. Word has length 60 [2022-02-23 14:54:50,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:50,622 INFO L470 AbstractCegarLoop]: Abstraction has 826 states and 1117 transitions. [2022-02-23 14:54:50,622 INFO L471 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) [2022-02-23 14:54:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1117 transitions. [2022-02-23 14:54:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-23 14:54:50,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:50,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:50,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 14:54:50,624 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 875576268, now seen corresponding path program 1 times [2022-02-23 14:54:50,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:50,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145979862] [2022-02-23 14:54:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-02-23 14:54:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:50,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:50,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145979862] [2022-02-23 14:54:50,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145979862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:50,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:50,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-23 14:54:50,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194229972] [2022-02-23 14:54:50,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:50,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-23 14:54:50,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-23 14:54:50,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:54:50,807 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) [2022-02-23 14:54:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:52,772 INFO L93 Difference]: Finished difference Result 969 states and 1356 transitions. [2022-02-23 14:54:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-23 14:54:52,772 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 [2022-02-23 14:54:52,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:52,774 INFO L225 Difference]: With dead ends: 969 [2022-02-23 14:54:52,774 INFO L226 Difference]: Without dead ends: 944 [2022-02-23 14:54:52,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:54:52,775 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 641 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 4530 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:52,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2802 Invalid, 4789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 4530 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:54:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-02-23 14:54:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 824. [2022-02-23 14:54:52,848 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) [2022-02-23 14:54:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1113 transitions. [2022-02-23 14:54:52,849 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1113 transitions. Word has length 60 [2022-02-23 14:54:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:52,849 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1113 transitions. [2022-02-23 14:54:52,849 INFO L471 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) [2022-02-23 14:54:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1113 transitions. [2022-02-23 14:54:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-23 14:54:52,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:52,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:52,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 14:54:52,851 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1391350355, now seen corresponding path program 1 times [2022-02-23 14:54:52,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:52,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386167450] [2022-02-23 14:54:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:52,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:54:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:52,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:52,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386167450] [2022-02-23 14:54:52,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386167450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:52,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:52,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-23 14:54:52,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819250399] [2022-02-23 14:54:52,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:52,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-23 14:54:52,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:52,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-23 14:54:52,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-23 14:54:52,990 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) [2022-02-23 14:54:54,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:54,247 INFO L93 Difference]: Finished difference Result 978 states and 1360 transitions. [2022-02-23 14:54:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-23 14:54:54,248 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 [2022-02-23 14:54:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:54,250 INFO L225 Difference]: With dead ends: 978 [2022-02-23 14:54:54,250 INFO L226 Difference]: Without dead ends: 946 [2022-02-23 14:54:54,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:54:54,251 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 1233 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:54,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 1505 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:54:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-02-23 14:54:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 824. [2022-02-23 14:54:54,344 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) [2022-02-23 14:54:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1112 transitions. [2022-02-23 14:54:54,345 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1112 transitions. Word has length 60 [2022-02-23 14:54:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:54,345 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1112 transitions. [2022-02-23 14:54:54,345 INFO L471 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) [2022-02-23 14:54:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1112 transitions. [2022-02-23 14:54:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-23 14:54:54,347 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:54,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:54,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 14:54:54,347 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:54,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1900823445, now seen corresponding path program 1 times [2022-02-23 14:54:54,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:54,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544222285] [2022-02-23 14:54:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:54,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:54:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:54,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:54,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544222285] [2022-02-23 14:54:54,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544222285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:54,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:54,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-23 14:54:54,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264432377] [2022-02-23 14:54:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:54,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-23 14:54:54,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-23 14:54:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:54:54,565 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) [2022-02-23 14:54:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:56,501 INFO L93 Difference]: Finished difference Result 985 states and 1377 transitions. [2022-02-23 14:54:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-23 14:54:56,502 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 [2022-02-23 14:54:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:56,504 INFO L225 Difference]: With dead ends: 985 [2022-02-23 14:54:56,504 INFO L226 Difference]: Without dead ends: 933 [2022-02-23 14:54:56,505 INFO L932 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 [2022-02-23 14:54:56,505 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 968 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 4724 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:56,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 2574 Invalid, 5117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 4724 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:54:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-02-23 14:54:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 816. [2022-02-23 14:54:56,572 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) [2022-02-23 14:54:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1097 transitions. [2022-02-23 14:54:56,573 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1097 transitions. Word has length 60 [2022-02-23 14:54:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:56,573 INFO L470 AbstractCegarLoop]: Abstraction has 816 states and 1097 transitions. [2022-02-23 14:54:56,574 INFO L471 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) [2022-02-23 14:54:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1097 transitions. [2022-02-23 14:54:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-23 14:54:56,575 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:56,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:56,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 14:54:56,575 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:56,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -384399656, now seen corresponding path program 1 times [2022-02-23 14:54:56,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:56,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360985563] [2022-02-23 14:54:56,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:54:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:56,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:56,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360985563] [2022-02-23 14:54:56,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360985563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:56,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:56,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:54:56,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120821935] [2022-02-23 14:54:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:56,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:54:56,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:54:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:54:56,748 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) [2022-02-23 14:54:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:54:58,717 INFO L93 Difference]: Finished difference Result 981 states and 1378 transitions. [2022-02-23 14:54:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:54:58,718 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 [2022-02-23 14:54:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:54:58,720 INFO L225 Difference]: With dead ends: 981 [2022-02-23 14:54:58,720 INFO L226 Difference]: Without dead ends: 947 [2022-02-23 14:54:58,723 INFO L932 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 [2022-02-23 14:54:58,724 INFO L933 BasicCegarLoop]: 589 mSDtfsCounter, 338 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 2863 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:54:58,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1966 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2863 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:54:58,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-02-23 14:54:58,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 820. [2022-02-23 14:54:58,793 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) [2022-02-23 14:54:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1115 transitions. [2022-02-23 14:54:58,794 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1115 transitions. Word has length 61 [2022-02-23 14:54:58,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:54:58,795 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1115 transitions. [2022-02-23 14:54:58,795 INFO L471 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) [2022-02-23 14:54:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1115 transitions. [2022-02-23 14:54:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-23 14:54:58,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:54:58,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:54:58,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 14:54:58,796 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:54:58,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:54:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1213250190, now seen corresponding path program 1 times [2022-02-23 14:54:58,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:54:58,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212215810] [2022-02-23 14:54:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:54:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:54:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:54:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:54:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:54:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:54:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:54:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:54:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:54:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:54:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:54:59,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:54:59,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212215810] [2022-02-23 14:54:59,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212215810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:54:59,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:54:59,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-23 14:54:59,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088340731] [2022-02-23 14:54:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:54:59,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-23 14:54:59,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:54:59,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-23 14:54:59,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:54:59,052 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) [2022-02-23 14:55:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:00,928 INFO L93 Difference]: Finished difference Result 954 states and 1343 transitions. [2022-02-23 14:55:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-23 14:55:00,929 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 [2022-02-23 14:55:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:00,931 INFO L225 Difference]: With dead ends: 954 [2022-02-23 14:55:00,931 INFO L226 Difference]: Without dead ends: 932 [2022-02-23 14:55:00,932 INFO L932 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 [2022-02-23 14:55:00,932 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 884 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 5930 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:00,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 3142 Invalid, 6295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 5930 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:55:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-02-23 14:55:01,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 815. [2022-02-23 14:55:01,001 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) [2022-02-23 14:55:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1108 transitions. [2022-02-23 14:55:01,003 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1108 transitions. Word has length 62 [2022-02-23 14:55:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:01,003 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1108 transitions. [2022-02-23 14:55:01,003 INFO L471 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) [2022-02-23 14:55:01,003 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1108 transitions. [2022-02-23 14:55:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 14:55:01,005 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:01,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:01,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 14:55:01,005 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1649412610, now seen corresponding path program 1 times [2022-02-23 14:55:01,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:01,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468120928] [2022-02-23 14:55:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:01,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:01,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468120928] [2022-02-23 14:55:01,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468120928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:01,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:01,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-23 14:55:01,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444392947] [2022-02-23 14:55:01,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:01,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-23 14:55:01,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-23 14:55:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-02-23 14:55:01,275 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) [2022-02-23 14:55:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:03,060 INFO L93 Difference]: Finished difference Result 956 states and 1343 transitions. [2022-02-23 14:55:03,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-23 14:55:03,060 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 [2022-02-23 14:55:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:03,063 INFO L225 Difference]: With dead ends: 956 [2022-02-23 14:55:03,063 INFO L226 Difference]: Without dead ends: 931 [2022-02-23 14:55:03,064 INFO L932 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 [2022-02-23 14:55:03,064 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1801 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 5582 mSolverCounterSat, 741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:03,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 3553 Invalid, 6323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [741 Valid, 5582 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:55:03,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-02-23 14:55:03,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 813. [2022-02-23 14:55:03,134 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) [2022-02-23 14:55:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1104 transitions. [2022-02-23 14:55:03,142 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1104 transitions. Word has length 67 [2022-02-23 14:55:03,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:03,142 INFO L470 AbstractCegarLoop]: Abstraction has 813 states and 1104 transitions. [2022-02-23 14:55:03,143 INFO L471 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) [2022-02-23 14:55:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1104 transitions. [2022-02-23 14:55:03,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 14:55:03,144 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:03,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:03,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 14:55:03,145 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:03,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash -395524383, now seen corresponding path program 1 times [2022-02-23 14:55:03,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:03,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534905430] [2022-02-23 14:55:03,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:03,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:55:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:03,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:03,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534905430] [2022-02-23 14:55:03,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534905430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:03,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:03,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-23 14:55:03,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113541026] [2022-02-23 14:55:03,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:03,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-23 14:55:03,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-23 14:55:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-02-23 14:55:03,432 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) [2022-02-23 14:55:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:05,367 INFO L93 Difference]: Finished difference Result 953 states and 1336 transitions. [2022-02-23 14:55:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-23 14:55:05,367 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 [2022-02-23 14:55:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:05,370 INFO L225 Difference]: With dead ends: 953 [2022-02-23 14:55:05,370 INFO L226 Difference]: Without dead ends: 928 [2022-02-23 14:55:05,370 INFO L932 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 [2022-02-23 14:55:05,371 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1256 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 5246 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:05,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 3107 Invalid, 5743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 5246 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-23 14:55:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-02-23 14:55:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 811. [2022-02-23 14:55:05,440 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) [2022-02-23 14:55:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1100 transitions. [2022-02-23 14:55:05,442 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1100 transitions. Word has length 66 [2022-02-23 14:55:05,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:05,442 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 1100 transitions. [2022-02-23 14:55:05,442 INFO L471 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) [2022-02-23 14:55:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1100 transitions. [2022-02-23 14:55:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-23 14:55:05,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:05,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:05,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 14:55:05,443 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:05,444 INFO L85 PathProgramCache]: Analyzing trace with hash 73194234, now seen corresponding path program 1 times [2022-02-23 14:55:05,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:05,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46460608] [2022-02-23 14:55:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:05,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-23 14:55:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:05,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:05,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46460608] [2022-02-23 14:55:05,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46460608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:05,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:05,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-23 14:55:05,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803492345] [2022-02-23 14:55:05,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:05,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-23 14:55:05,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:05,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-23 14:55:05,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:55:05,694 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) [2022-02-23 14:55:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:07,798 INFO L93 Difference]: Finished difference Result 948 states and 1327 transitions. [2022-02-23 14:55:07,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-23 14:55:07,799 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 [2022-02-23 14:55:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:07,801 INFO L225 Difference]: With dead ends: 948 [2022-02-23 14:55:07,801 INFO L226 Difference]: Without dead ends: 924 [2022-02-23 14:55:07,801 INFO L932 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 [2022-02-23 14:55:07,802 INFO L933 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:07,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 3244 Invalid, 6294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 6162 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:55:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-02-23 14:55:07,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 809. [2022-02-23 14:55:07,872 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) [2022-02-23 14:55:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1096 transitions. [2022-02-23 14:55:07,873 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1096 transitions. Word has length 63 [2022-02-23 14:55:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:07,873 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1096 transitions. [2022-02-23 14:55:07,873 INFO L471 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) [2022-02-23 14:55:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1096 transitions. [2022-02-23 14:55:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-23 14:55:07,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:07,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:07,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 14:55:07,876 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash -20126443, now seen corresponding path program 1 times [2022-02-23 14:55:07,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:07,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83360717] [2022-02-23 14:55:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:07,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-23 14:55:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:08,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:08,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:08,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83360717] [2022-02-23 14:55:08,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83360717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:08,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:08,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-23 14:55:08,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601782020] [2022-02-23 14:55:08,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:08,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-23 14:55:08,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-23 14:55:08,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:55:08,031 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) [2022-02-23 14:55:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:08,791 INFO L93 Difference]: Finished difference Result 1141 states and 1563 transitions. [2022-02-23 14:55:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 14:55:08,791 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 [2022-02-23 14:55:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:08,793 INFO L225 Difference]: With dead ends: 1141 [2022-02-23 14:55:08,793 INFO L226 Difference]: Without dead ends: 809 [2022-02-23 14:55:08,806 INFO L932 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 [2022-02-23 14:55:08,807 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 599 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:08,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1064 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-23 14:55:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-02-23 14:55:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 701. [2022-02-23 14:55:08,886 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) [2022-02-23 14:55:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 917 transitions. [2022-02-23 14:55:08,887 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 917 transitions. Word has length 63 [2022-02-23 14:55:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:08,888 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 917 transitions. [2022-02-23 14:55:08,888 INFO L471 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) [2022-02-23 14:55:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 917 transitions. [2022-02-23 14:55:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-23 14:55:08,889 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:08,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:08,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 14:55:08,889 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1748590526, now seen corresponding path program 1 times [2022-02-23 14:55:08,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:08,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168017797] [2022-02-23 14:55:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-23 14:55:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:09,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:09,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168017797] [2022-02-23 14:55:09,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168017797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:09,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:09,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-23 14:55:09,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243239056] [2022-02-23 14:55:09,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:09,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-23 14:55:09,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-23 14:55:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:55:09,267 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) [2022-02-23 14:55:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:11,366 INFO L93 Difference]: Finished difference Result 780 states and 1030 transitions. [2022-02-23 14:55:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-23 14:55:11,366 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 [2022-02-23 14:55:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:11,368 INFO L225 Difference]: With dead ends: 780 [2022-02-23 14:55:11,368 INFO L226 Difference]: Without dead ends: 758 [2022-02-23 14:55:11,369 INFO L932 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 [2022-02-23 14:55:11,369 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 846 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 4845 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:11,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 2503 Invalid, 5163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 4845 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-23 14:55:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-02-23 14:55:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 699. [2022-02-23 14:55:11,443 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) [2022-02-23 14:55:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 913 transitions. [2022-02-23 14:55:11,444 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 913 transitions. Word has length 72 [2022-02-23 14:55:11,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:11,444 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 913 transitions. [2022-02-23 14:55:11,444 INFO L471 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) [2022-02-23 14:55:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 913 transitions. [2022-02-23 14:55:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:11,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:11,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 14:55:11,445 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1016702716, now seen corresponding path program 1 times [2022-02-23 14:55:11,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:11,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974195221] [2022-02-23 14:55:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:55:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:11,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:11,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974195221] [2022-02-23 14:55:11,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974195221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:11,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:11,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-23 14:55:11,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418704942] [2022-02-23 14:55:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:11,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-23 14:55:11,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-23 14:55:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:55:11,806 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) [2022-02-23 14:55:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:13,605 INFO L93 Difference]: Finished difference Result 775 states and 1023 transitions. [2022-02-23 14:55:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-23 14:55:13,605 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 [2022-02-23 14:55:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:13,607 INFO L225 Difference]: With dead ends: 775 [2022-02-23 14:55:13,607 INFO L226 Difference]: Without dead ends: 745 [2022-02-23 14:55:13,607 INFO L932 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 [2022-02-23 14:55:13,607 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 1109 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:13,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2489 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-23 14:55:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-02-23 14:55:13,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 688. [2022-02-23 14:55:13,669 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) [2022-02-23 14:55:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 898 transitions. [2022-02-23 14:55:13,670 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 898 transitions. Word has length 69 [2022-02-23 14:55:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:13,670 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 898 transitions. [2022-02-23 14:55:13,670 INFO L471 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) [2022-02-23 14:55:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 898 transitions. [2022-02-23 14:55:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-23 14:55:13,671 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:13,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:13,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 14:55:13,672 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:13,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1125022054, now seen corresponding path program 1 times [2022-02-23 14:55:13,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:13,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918459064] [2022-02-23 14:55:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:13,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:13,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918459064] [2022-02-23 14:55:13,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918459064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:13,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:13,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-23 14:55:13,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587262577] [2022-02-23 14:55:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:13,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-23 14:55:13,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:13,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-23 14:55:13,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:55:13,901 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) [2022-02-23 14:55:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:15,616 INFO L93 Difference]: Finished difference Result 762 states and 1004 transitions. [2022-02-23 14:55:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-23 14:55:15,616 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 [2022-02-23 14:55:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:15,618 INFO L225 Difference]: With dead ends: 762 [2022-02-23 14:55:15,618 INFO L226 Difference]: Without dead ends: 740 [2022-02-23 14:55:15,619 INFO L932 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 [2022-02-23 14:55:15,619 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 290 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 5145 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:15,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2486 Invalid, 5250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 5145 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:55:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-02-23 14:55:15,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 683. [2022-02-23 14:55:15,681 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) [2022-02-23 14:55:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 891 transitions. [2022-02-23 14:55:15,682 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 891 transitions. Word has length 63 [2022-02-23 14:55:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:15,683 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 891 transitions. [2022-02-23 14:55:15,683 INFO L471 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) [2022-02-23 14:55:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 891 transitions. [2022-02-23 14:55:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-02-23 14:55:15,684 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:15,684 INFO L514 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] [2022-02-23 14:55:15,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 14:55:15,684 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:15,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:15,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1222738042, now seen corresponding path program 1 times [2022-02-23 14:55:15,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:15,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017067633] [2022-02-23 14:55:15,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:15,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-23 14:55:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-23 14:55:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-23 14:55:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-23 14:55:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:15,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:15,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017067633] [2022-02-23 14:55:15,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017067633] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 14:55:15,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040248420] [2022-02-23 14:55:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:15,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 14:55:15,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 14:55:15,832 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) [2022-02-23 14:55:15,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 14:55:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-23 14:55:16,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 14:55:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:16,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 14:55:16,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040248420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:16,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 14:55:16,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2022-02-23 14:55:16,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043345635] [2022-02-23 14:55:16,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:16,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 14:55:16,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 14:55:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:55:16,066 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) [2022-02-23 14:55:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:16,151 INFO L93 Difference]: Finished difference Result 892 states and 1159 transitions. [2022-02-23 14:55:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 14:55:16,151 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 [2022-02-23 14:55:16,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:16,153 INFO L225 Difference]: With dead ends: 892 [2022-02-23 14:55:16,153 INFO L226 Difference]: Without dead ends: 755 [2022-02-23 14:55:16,153 INFO L932 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 [2022-02-23 14:55:16,154 INFO L933 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 [2022-02-23 14:55:16,154 INFO L934 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] [2022-02-23 14:55:16,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-02-23 14:55:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 724. [2022-02-23 14:55:16,218 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) [2022-02-23 14:55:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 942 transitions. [2022-02-23 14:55:16,219 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 942 transitions. Word has length 80 [2022-02-23 14:55:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:16,219 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 942 transitions. [2022-02-23 14:55:16,219 INFO L471 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) [2022-02-23 14:55:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 942 transitions. [2022-02-23 14:55:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 14:55:16,221 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:16,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:16,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 14:55:16,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-02-23 14:55:16,435 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:16,435 INFO L85 PathProgramCache]: Analyzing trace with hash 505400329, now seen corresponding path program 1 times [2022-02-23 14:55:16,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:16,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507538955] [2022-02-23 14:55:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:16,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-23 14:55:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-23 14:55:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-23 14:55:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:16,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:16,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507538955] [2022-02-23 14:55:16,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507538955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:16,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:16,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-23 14:55:16,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306932712] [2022-02-23 14:55:16,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:16,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 14:55:16,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 14:55:16,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-23 14:55:16,549 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) [2022-02-23 14:55:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:17,628 INFO L93 Difference]: Finished difference Result 911 states and 1203 transitions. [2022-02-23 14:55:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 14:55:17,628 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 [2022-02-23 14:55:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:17,630 INFO L225 Difference]: With dead ends: 911 [2022-02-23 14:55:17,630 INFO L226 Difference]: Without dead ends: 781 [2022-02-23 14:55:17,631 INFO L932 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 [2022-02-23 14:55:17,631 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 394 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:17,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 903 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-23 14:55:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-02-23 14:55:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 724. [2022-02-23 14:55:17,696 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) [2022-02-23 14:55:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 939 transitions. [2022-02-23 14:55:17,697 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 939 transitions. Word has length 66 [2022-02-23 14:55:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:17,697 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 939 transitions. [2022-02-23 14:55:17,697 INFO L471 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) [2022-02-23 14:55:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 939 transitions. [2022-02-23 14:55:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 14:55:17,698 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:17,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:17,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 14:55:17,698 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:17,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1348887076, now seen corresponding path program 1 times [2022-02-23 14:55:17,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:17,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625141986] [2022-02-23 14:55:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:17,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-23 14:55:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:17,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:17,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625141986] [2022-02-23 14:55:17,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625141986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:17,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:17,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:17,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841051263] [2022-02-23 14:55:17,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:17,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:17,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:17,867 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) [2022-02-23 14:55:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:19,318 INFO L93 Difference]: Finished difference Result 845 states and 1103 transitions. [2022-02-23 14:55:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-23 14:55:19,319 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 [2022-02-23 14:55:19,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:19,321 INFO L225 Difference]: With dead ends: 845 [2022-02-23 14:55:19,321 INFO L226 Difference]: Without dead ends: 812 [2022-02-23 14:55:19,322 INFO L932 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 [2022-02-23 14:55:19,322 INFO L933 BasicCegarLoop]: 484 mSDtfsCounter, 990 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:19,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 1402 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:55:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-02-23 14:55:19,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 730. [2022-02-23 14:55:19,391 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) [2022-02-23 14:55:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 947 transitions. [2022-02-23 14:55:19,392 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 947 transitions. Word has length 65 [2022-02-23 14:55:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:19,392 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 947 transitions. [2022-02-23 14:55:19,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 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) [2022-02-23 14:55:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 947 transitions. [2022-02-23 14:55:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 14:55:19,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:19,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:19,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-23 14:55:19,394 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash 257334910, now seen corresponding path program 1 times [2022-02-23 14:55:19,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:19,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436430986] [2022-02-23 14:55:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:19,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-23 14:55:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:19,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:19,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436430986] [2022-02-23 14:55:19,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436430986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:19,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:19,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:19,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543046551] [2022-02-23 14:55:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:19,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:19,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:19,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:19,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:19,540 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) [2022-02-23 14:55:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:20,881 INFO L93 Difference]: Finished difference Result 843 states and 1096 transitions. [2022-02-23 14:55:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:55:20,881 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 [2022-02-23 14:55:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:20,883 INFO L225 Difference]: With dead ends: 843 [2022-02-23 14:55:20,883 INFO L226 Difference]: Without dead ends: 789 [2022-02-23 14:55:20,884 INFO L932 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 [2022-02-23 14:55:20,885 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 856 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:20,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 1171 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:55:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-02-23 14:55:20,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 730. [2022-02-23 14:55:20,952 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) [2022-02-23 14:55:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 945 transitions. [2022-02-23 14:55:20,953 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 945 transitions. Word has length 66 [2022-02-23 14:55:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:20,953 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 945 transitions. [2022-02-23 14:55:20,953 INFO L471 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) [2022-02-23 14:55:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 945 transitions. [2022-02-23 14:55:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 14:55:20,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:20,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:20,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 14:55:20,954 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash 958934784, now seen corresponding path program 1 times [2022-02-23 14:55:20,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:20,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023303589] [2022-02-23 14:55:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-02-23 14:55:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:21,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:21,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:21,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023303589] [2022-02-23 14:55:21,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023303589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:21,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:21,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-23 14:55:21,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547609337] [2022-02-23 14:55:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:21,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-23 14:55:21,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:21,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-23 14:55:21,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-02-23 14:55:21,140 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) [2022-02-23 14:55:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:22,833 INFO L93 Difference]: Finished difference Result 814 states and 1063 transitions. [2022-02-23 14:55:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-23 14:55:22,833 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 [2022-02-23 14:55:22,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:22,835 INFO L225 Difference]: With dead ends: 814 [2022-02-23 14:55:22,835 INFO L226 Difference]: Without dead ends: 737 [2022-02-23 14:55:22,835 INFO L932 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 [2022-02-23 14:55:22,836 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 898 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 3503 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:22,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 1903 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 3503 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:55:22,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-02-23 14:55:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 693. [2022-02-23 14:55:22,895 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) [2022-02-23 14:55:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 884 transitions. [2022-02-23 14:55:22,896 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 884 transitions. Word has length 66 [2022-02-23 14:55:22,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:22,896 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 884 transitions. [2022-02-23 14:55:22,896 INFO L471 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) [2022-02-23 14:55:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 884 transitions. [2022-02-23 14:55:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 14:55:22,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:22,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:22,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-23 14:55:22,897 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash -896433839, now seen corresponding path program 1 times [2022-02-23 14:55:22,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:22,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034663802] [2022-02-23 14:55:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-23 14:55:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:23,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:23,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034663802] [2022-02-23 14:55:23,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034663802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:23,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:23,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:23,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220837341] [2022-02-23 14:55:23,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:23,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:23,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:23,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:23,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:23,055 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) [2022-02-23 14:55:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:24,263 INFO L93 Difference]: Finished difference Result 765 states and 977 transitions. [2022-02-23 14:55:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:55:24,263 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 [2022-02-23 14:55:24,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:24,264 INFO L225 Difference]: With dead ends: 765 [2022-02-23 14:55:24,265 INFO L226 Difference]: Without dead ends: 726 [2022-02-23 14:55:24,265 INFO L932 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 [2022-02-23 14:55:24,265 INFO L933 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:24,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1298 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-23 14:55:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-02-23 14:55:24,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 688. [2022-02-23 14:55:24,325 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) [2022-02-23 14:55:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 877 transitions. [2022-02-23 14:55:24,326 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 877 transitions. Word has length 67 [2022-02-23 14:55:24,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:24,326 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 877 transitions. [2022-02-23 14:55:24,326 INFO L471 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) [2022-02-23 14:55:24,326 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 877 transitions. [2022-02-23 14:55:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 14:55:24,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:24,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 14:55:24,329 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1676375305, now seen corresponding path program 1 times [2022-02-23 14:55:24,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:24,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719656599] [2022-02-23 14:55:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:24,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:24,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719656599] [2022-02-23 14:55:24,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719656599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:24,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:24,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-23 14:55:24,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222282598] [2022-02-23 14:55:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:24,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-23 14:55:24,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-23 14:55:24,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:55:24,468 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) [2022-02-23 14:55:25,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:25,535 INFO L93 Difference]: Finished difference Result 844 states and 1083 transitions. [2022-02-23 14:55:25,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-23 14:55:25,536 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 [2022-02-23 14:55:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:25,538 INFO L225 Difference]: With dead ends: 844 [2022-02-23 14:55:25,538 INFO L226 Difference]: Without dead ends: 832 [2022-02-23 14:55:25,539 INFO L932 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 [2022-02-23 14:55:25,539 INFO L933 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 [2022-02-23 14:55:25,539 INFO L934 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] [2022-02-23 14:55:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-02-23 14:55:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 734. [2022-02-23 14:55:25,603 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) [2022-02-23 14:55:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 929 transitions. [2022-02-23 14:55:25,636 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 929 transitions. Word has length 67 [2022-02-23 14:55:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:25,636 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 929 transitions. [2022-02-23 14:55:25,636 INFO L471 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) [2022-02-23 14:55:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 929 transitions. [2022-02-23 14:55:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 14:55:25,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:25,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:25,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-23 14:55:25,637 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash 871891881, now seen corresponding path program 1 times [2022-02-23 14:55:25,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:25,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961810153] [2022-02-23 14:55:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:25,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:25,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:25,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961810153] [2022-02-23 14:55:25,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961810153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:25,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:25,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:25,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034353247] [2022-02-23 14:55:25,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:25,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:25,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:25,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:25,826 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) [2022-02-23 14:55:27,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:27,147 INFO L93 Difference]: Finished difference Result 838 states and 1072 transitions. [2022-02-23 14:55:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-23 14:55:27,148 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 [2022-02-23 14:55:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:27,151 INFO L225 Difference]: With dead ends: 838 [2022-02-23 14:55:27,151 INFO L226 Difference]: Without dead ends: 829 [2022-02-23 14:55:27,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-02-23 14:55:27,152 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1695 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-02-23 14:55:27,153 INFO L934 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] [2022-02-23 14:55:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-02-23 14:55:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 734. [2022-02-23 14:55:27,242 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) [2022-02-23 14:55:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 927 transitions. [2022-02-23 14:55:27,243 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 927 transitions. Word has length 68 [2022-02-23 14:55:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:27,243 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 927 transitions. [2022-02-23 14:55:27,243 INFO L471 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) [2022-02-23 14:55:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 927 transitions. [2022-02-23 14:55:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-23 14:55:27,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:27,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:27,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-23 14:55:27,245 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 881211856, now seen corresponding path program 1 times [2022-02-23 14:55:27,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:27,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852692170] [2022-02-23 14:55:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:55:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-02-23 14:55:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:27,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:27,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852692170] [2022-02-23 14:55:27,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852692170] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:27,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:27,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-23 14:55:27,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275037273] [2022-02-23 14:55:27,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:27,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-23 14:55:27,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-23 14:55:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-02-23 14:55:27,526 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) [2022-02-23 14:55:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:29,301 INFO L93 Difference]: Finished difference Result 812 states and 1036 transitions. [2022-02-23 14:55:29,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-23 14:55:29,302 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 [2022-02-23 14:55:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:29,303 INFO L225 Difference]: With dead ends: 812 [2022-02-23 14:55:29,303 INFO L226 Difference]: Without dead ends: 787 [2022-02-23 14:55:29,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-02-23 14:55:29,304 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 802 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:29,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 2183 Invalid, 4056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 14:55:29,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-02-23 14:55:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 732. [2022-02-23 14:55:29,371 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) [2022-02-23 14:55:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 923 transitions. [2022-02-23 14:55:29,372 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 923 transitions. Word has length 74 [2022-02-23 14:55:29,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:29,372 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 923 transitions. [2022-02-23 14:55:29,372 INFO L471 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) [2022-02-23 14:55:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 923 transitions. [2022-02-23 14:55:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-23 14:55:29,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:29,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:29,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-23 14:55:29,373 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:29,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1188604284, now seen corresponding path program 1 times [2022-02-23 14:55:29,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:29,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940964208] [2022-02-23 14:55:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:29,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-23 14:55:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-23 14:55:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:29,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:29,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940964208] [2022-02-23 14:55:29,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940964208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:29,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:29,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-23 14:55:29,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906779805] [2022-02-23 14:55:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:29,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-23 14:55:29,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-23 14:55:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-02-23 14:55:29,728 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) [2022-02-23 14:55:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:31,785 INFO L93 Difference]: Finished difference Result 793 states and 1004 transitions. [2022-02-23 14:55:31,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-23 14:55:31,785 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 [2022-02-23 14:55:31,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:31,786 INFO L225 Difference]: With dead ends: 793 [2022-02-23 14:55:31,787 INFO L226 Difference]: Without dead ends: 765 [2022-02-23 14:55:31,787 INFO L932 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 [2022-02-23 14:55:31,787 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 767 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 4539 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:31,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 2543 Invalid, 4815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 4539 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-23 14:55:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-02-23 14:55:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 728. [2022-02-23 14:55:31,872 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) [2022-02-23 14:55:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 917 transitions. [2022-02-23 14:55:31,873 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 917 transitions. Word has length 70 [2022-02-23 14:55:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:31,873 INFO L470 AbstractCegarLoop]: Abstraction has 728 states and 917 transitions. [2022-02-23 14:55:31,874 INFO L471 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) [2022-02-23 14:55:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 917 transitions. [2022-02-23 14:55:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:31,875 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:31,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:31,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-23 14:55:31,875 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1926600916, now seen corresponding path program 1 times [2022-02-23 14:55:31,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:31,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126897432] [2022-02-23 14:55:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:31,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-23 14:55:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:55:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:32,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:32,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126897432] [2022-02-23 14:55:32,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126897432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:32,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:32,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:32,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504359104] [2022-02-23 14:55:32,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:32,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:32,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:32,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:32,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:32,051 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) [2022-02-23 14:55:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:32,899 INFO L93 Difference]: Finished difference Result 799 states and 1007 transitions. [2022-02-23 14:55:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:55:32,900 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 [2022-02-23 14:55:32,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:32,901 INFO L225 Difference]: With dead ends: 799 [2022-02-23 14:55:32,901 INFO L226 Difference]: Without dead ends: 760 [2022-02-23 14:55:32,902 INFO L932 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 [2022-02-23 14:55:32,902 INFO L933 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:32,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 1164 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-23 14:55:32,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-02-23 14:55:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 723. [2022-02-23 14:55:32,967 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) [2022-02-23 14:55:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 910 transitions. [2022-02-23 14:55:32,968 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 910 transitions. Word has length 69 [2022-02-23 14:55:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:32,968 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 910 transitions. [2022-02-23 14:55:32,968 INFO L471 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) [2022-02-23 14:55:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 910 transitions. [2022-02-23 14:55:32,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:32,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:32,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:32,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-23 14:55:32,969 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash -51645449, now seen corresponding path program 1 times [2022-02-23 14:55:32,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:32,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577682204] [2022-02-23 14:55:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-02-23 14:55:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:55:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:33,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:33,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577682204] [2022-02-23 14:55:33,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577682204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:33,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:33,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-23 14:55:33,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878372155] [2022-02-23 14:55:33,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:33,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-23 14:55:33,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:33,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-23 14:55:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-02-23 14:55:33,207 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) [2022-02-23 14:55:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:34,919 INFO L93 Difference]: Finished difference Result 787 states and 995 transitions. [2022-02-23 14:55:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-23 14:55:34,919 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 [2022-02-23 14:55:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:34,921 INFO L225 Difference]: With dead ends: 787 [2022-02-23 14:55:34,921 INFO L226 Difference]: Without dead ends: 757 [2022-02-23 14:55:34,921 INFO L932 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 [2022-02-23 14:55:34,921 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 682 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:34,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [685 Valid, 2289 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-23 14:55:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-02-23 14:55:34,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 720. [2022-02-23 14:55:34,988 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) [2022-02-23 14:55:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 905 transitions. [2022-02-23 14:55:34,989 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 905 transitions. Word has length 69 [2022-02-23 14:55:34,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:34,989 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 905 transitions. [2022-02-23 14:55:34,989 INFO L471 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) [2022-02-23 14:55:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 905 transitions. [2022-02-23 14:55:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:34,990 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:34,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:34,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-23 14:55:34,991 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash 618518284, now seen corresponding path program 1 times [2022-02-23 14:55:34,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:34,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001325322] [2022-02-23 14:55:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:34,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:35,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:35,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001325322] [2022-02-23 14:55:35,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001325322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:35,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:35,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-23 14:55:35,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436191614] [2022-02-23 14:55:35,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:35,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-23 14:55:35,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:35,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-23 14:55:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-02-23 14:55:35,197 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) [2022-02-23 14:55:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:36,477 INFO L93 Difference]: Finished difference Result 767 states and 969 transitions. [2022-02-23 14:55:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-23 14:55:36,477 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 [2022-02-23 14:55:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:36,479 INFO L225 Difference]: With dead ends: 767 [2022-02-23 14:55:36,479 INFO L226 Difference]: Without dead ends: 761 [2022-02-23 14:55:36,479 INFO L932 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 [2022-02-23 14:55:36,479 INFO L933 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:36,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 1612 Invalid, 4086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:55:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-02-23 14:55:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 717. [2022-02-23 14:55:36,546 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) [2022-02-23 14:55:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 898 transitions. [2022-02-23 14:55:36,547 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 898 transitions. Word has length 69 [2022-02-23 14:55:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:36,547 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 898 transitions. [2022-02-23 14:55:36,547 INFO L471 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) [2022-02-23 14:55:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 898 transitions. [2022-02-23 14:55:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:36,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:36,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:36,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-23 14:55:36,549 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash 618241454, now seen corresponding path program 1 times [2022-02-23 14:55:36,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:36,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38131581] [2022-02-23 14:55:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:36,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:36,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:36,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38131581] [2022-02-23 14:55:36,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38131581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:36,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:36,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:36,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833138882] [2022-02-23 14:55:36,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:36,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:36,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:36,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:36,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:36,719 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) [2022-02-23 14:55:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:37,780 INFO L93 Difference]: Finished difference Result 816 states and 1033 transitions. [2022-02-23 14:55:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-23 14:55:37,780 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 [2022-02-23 14:55:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:37,782 INFO L225 Difference]: With dead ends: 816 [2022-02-23 14:55:37,782 INFO L226 Difference]: Without dead ends: 781 [2022-02-23 14:55:37,782 INFO L932 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 [2022-02-23 14:55:37,783 INFO L933 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 [2022-02-23 14:55:37,783 INFO L934 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] [2022-02-23 14:55:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-02-23 14:55:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 688. [2022-02-23 14:55:37,846 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) [2022-02-23 14:55:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 862 transitions. [2022-02-23 14:55:37,847 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 862 transitions. Word has length 69 [2022-02-23 14:55:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:37,847 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 862 transitions. [2022-02-23 14:55:37,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 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) [2022-02-23 14:55:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 862 transitions. [2022-02-23 14:55:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 14:55:37,848 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:37,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:37,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-23 14:55:37,848 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:37,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 711441589, now seen corresponding path program 1 times [2022-02-23 14:55:37,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:37,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151312245] [2022-02-23 14:55:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:37,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:37,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151312245] [2022-02-23 14:55:37,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151312245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:37,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:37,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-23 14:55:37,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475628152] [2022-02-23 14:55:37,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:37,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-23 14:55:37,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-23 14:55:37,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-23 14:55:37,999 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) [2022-02-23 14:55:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:38,809 INFO L93 Difference]: Finished difference Result 751 states and 947 transitions. [2022-02-23 14:55:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-23 14:55:38,809 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 [2022-02-23 14:55:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:38,810 INFO L225 Difference]: With dead ends: 751 [2022-02-23 14:55:38,810 INFO L226 Difference]: Without dead ends: 711 [2022-02-23 14:55:38,811 INFO L932 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 [2022-02-23 14:55:38,811 INFO L933 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:38,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 821 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-23 14:55:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-02-23 14:55:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 670. [2022-02-23 14:55:38,874 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) [2022-02-23 14:55:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 837 transitions. [2022-02-23 14:55:38,875 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 837 transitions. Word has length 69 [2022-02-23 14:55:38,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:38,875 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 837 transitions. [2022-02-23 14:55:38,875 INFO L471 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) [2022-02-23 14:55:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 837 transitions. [2022-02-23 14:55:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-23 14:55:38,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:38,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:38,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-23 14:55:38,876 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:38,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:38,877 INFO L85 PathProgramCache]: Analyzing trace with hash -645591887, now seen corresponding path program 1 times [2022-02-23 14:55:38,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:38,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933290980] [2022-02-23 14:55:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:38,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-23 14:55:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-23 14:55:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:39,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:39,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933290980] [2022-02-23 14:55:39,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933290980] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:39,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:39,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:55:39,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83418739] [2022-02-23 14:55:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:39,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:55:39,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:55:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:55:39,065 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) [2022-02-23 14:55:40,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:40,386 INFO L93 Difference]: Finished difference Result 749 states and 936 transitions. [2022-02-23 14:55:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-23 14:55:40,386 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 [2022-02-23 14:55:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:40,387 INFO L225 Difference]: With dead ends: 749 [2022-02-23 14:55:40,388 INFO L226 Difference]: Without dead ends: 711 [2022-02-23 14:55:40,388 INFO L932 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 [2022-02-23 14:55:40,388 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 683 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:40,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 1316 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-23 14:55:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-02-23 14:55:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 670. [2022-02-23 14:55:40,476 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) [2022-02-23 14:55:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 836 transitions. [2022-02-23 14:55:40,477 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 836 transitions. Word has length 71 [2022-02-23 14:55:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:40,477 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 836 transitions. [2022-02-23 14:55:40,477 INFO L471 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) [2022-02-23 14:55:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 836 transitions. [2022-02-23 14:55:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-23 14:55:40,478 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:40,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:40,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-23 14:55:40,478 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:40,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1405392111, now seen corresponding path program 1 times [2022-02-23 14:55:40,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:40,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117868732] [2022-02-23 14:55:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:40,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-23 14:55:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-23 14:55:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:40,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:40,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117868732] [2022-02-23 14:55:40,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117868732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:40,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:40,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-23 14:55:40,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950351477] [2022-02-23 14:55:40,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:40,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-23 14:55:40,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:40,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-23 14:55:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-02-23 14:55:40,771 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) [2022-02-23 14:55:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:42,243 INFO L93 Difference]: Finished difference Result 747 states and 942 transitions. [2022-02-23 14:55:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-23 14:55:42,243 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 [2022-02-23 14:55:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:42,244 INFO L225 Difference]: With dead ends: 747 [2022-02-23 14:55:42,244 INFO L226 Difference]: Without dead ends: 709 [2022-02-23 14:55:42,245 INFO L932 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 [2022-02-23 14:55:42,245 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 932 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 4203 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:42,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 2454 Invalid, 4547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 4203 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-23 14:55:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-02-23 14:55:42,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 665. [2022-02-23 14:55:42,306 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) [2022-02-23 14:55:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 826 transitions. [2022-02-23 14:55:42,307 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 826 transitions. Word has length 71 [2022-02-23 14:55:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:42,307 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 826 transitions. [2022-02-23 14:55:42,308 INFO L471 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) [2022-02-23 14:55:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 826 transitions. [2022-02-23 14:55:42,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-23 14:55:42,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:42,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:42,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-23 14:55:42,309 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1361964370, now seen corresponding path program 1 times [2022-02-23 14:55:42,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:42,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680247344] [2022-02-23 14:55:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:42,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-02-23 14:55:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-23 14:55:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:42,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:42,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680247344] [2022-02-23 14:55:42,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680247344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:42,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:42,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:55:42,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623598093] [2022-02-23 14:55:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:42,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:55:42,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:42,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:55:42,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:55:42,501 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) [2022-02-23 14:55:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:43,226 INFO L93 Difference]: Finished difference Result 742 states and 922 transitions. [2022-02-23 14:55:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:55:43,226 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 [2022-02-23 14:55:43,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:43,228 INFO L225 Difference]: With dead ends: 742 [2022-02-23 14:55:43,228 INFO L226 Difference]: Without dead ends: 698 [2022-02-23 14:55:43,228 INFO L932 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 [2022-02-23 14:55:43,228 INFO L933 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 [2022-02-23 14:55:43,228 INFO L934 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] [2022-02-23 14:55:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-02-23 14:55:43,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 659. [2022-02-23 14:55:43,293 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) [2022-02-23 14:55:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 818 transitions. [2022-02-23 14:55:43,294 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 818 transitions. Word has length 71 [2022-02-23 14:55:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:43,294 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 818 transitions. [2022-02-23 14:55:43,294 INFO L471 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) [2022-02-23 14:55:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 818 transitions. [2022-02-23 14:55:43,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-23 14:55:43,295 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:43,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:43,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-23 14:55:43,295 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:43,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 696849523, now seen corresponding path program 1 times [2022-02-23 14:55:43,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:43,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715804163] [2022-02-23 14:55:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:43,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:43,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715804163] [2022-02-23 14:55:43,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715804163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:43,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:43,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-23 14:55:43,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176318683] [2022-02-23 14:55:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:43,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-23 14:55:43,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-23 14:55:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-02-23 14:55:43,561 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) [2022-02-23 14:55:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:45,020 INFO L93 Difference]: Finished difference Result 889 states and 1102 transitions. [2022-02-23 14:55:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-23 14:55:45,020 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 [2022-02-23 14:55:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:45,022 INFO L225 Difference]: With dead ends: 889 [2022-02-23 14:55:45,022 INFO L226 Difference]: Without dead ends: 740 [2022-02-23 14:55:45,022 INFO L932 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 [2022-02-23 14:55:45,023 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 538 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:45,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 1951 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-23 14:55:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-02-23 14:55:45,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 665. [2022-02-23 14:55:45,088 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) [2022-02-23 14:55:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 820 transitions. [2022-02-23 14:55:45,089 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 820 transitions. Word has length 71 [2022-02-23 14:55:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:45,089 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 820 transitions. [2022-02-23 14:55:45,090 INFO L471 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) [2022-02-23 14:55:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 820 transitions. [2022-02-23 14:55:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-23 14:55:45,091 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:45,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:45,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-23 14:55:45,092 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2057821935, now seen corresponding path program 1 times [2022-02-23 14:55:45,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:45,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100815497] [2022-02-23 14:55:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-23 14:55:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:45,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:45,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100815497] [2022-02-23 14:55:45,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100815497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:45,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:45,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-23 14:55:45,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999212589] [2022-02-23 14:55:45,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:45,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-23 14:55:45,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-23 14:55:45,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-02-23 14:55:45,392 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) [2022-02-23 14:55:47,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:47,098 INFO L93 Difference]: Finished difference Result 729 states and 905 transitions. [2022-02-23 14:55:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-23 14:55:47,098 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 [2022-02-23 14:55:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:47,099 INFO L225 Difference]: With dead ends: 729 [2022-02-23 14:55:47,099 INFO L226 Difference]: Without dead ends: 700 [2022-02-23 14:55:47,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-02-23 14:55:47,100 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 449 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:47,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2509 Invalid, 4312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 4146 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-23 14:55:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-02-23 14:55:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 663. [2022-02-23 14:55:47,164 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) [2022-02-23 14:55:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 817 transitions. [2022-02-23 14:55:47,165 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 817 transitions. Word has length 77 [2022-02-23 14:55:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:47,165 INFO L470 AbstractCegarLoop]: Abstraction has 663 states and 817 transitions. [2022-02-23 14:55:47,165 INFO L471 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) [2022-02-23 14:55:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 817 transitions. [2022-02-23 14:55:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-23 14:55:47,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:47,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:47,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-23 14:55:47,166 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:47,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:47,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1891319547, now seen corresponding path program 1 times [2022-02-23 14:55:47,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:47,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016433663] [2022-02-23 14:55:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-02-23 14:55:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-23 14:55:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:47,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:47,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016433663] [2022-02-23 14:55:47,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016433663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:47,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:47,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:55:47,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985189323] [2022-02-23 14:55:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:47,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:55:47,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:55:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:55:47,328 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) [2022-02-23 14:55:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:47,997 INFO L93 Difference]: Finished difference Result 731 states and 898 transitions. [2022-02-23 14:55:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:55:47,997 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 [2022-02-23 14:55:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:47,999 INFO L225 Difference]: With dead ends: 731 [2022-02-23 14:55:47,999 INFO L226 Difference]: Without dead ends: 671 [2022-02-23 14:55:47,999 INFO L932 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 [2022-02-23 14:55:47,999 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 802 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-23 14:55:47,999 INFO L934 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] [2022-02-23 14:55:48,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-02-23 14:55:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 647. [2022-02-23 14:55:48,056 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) [2022-02-23 14:55:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 792 transitions. [2022-02-23 14:55:48,057 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 792 transitions. Word has length 78 [2022-02-23 14:55:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:48,058 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 792 transitions. [2022-02-23 14:55:48,058 INFO L471 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) [2022-02-23 14:55:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 792 transitions. [2022-02-23 14:55:48,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 14:55:48,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:48,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:48,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-23 14:55:48,059 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:48,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash -403390025, now seen corresponding path program 1 times [2022-02-23 14:55:48,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:48,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195029986] [2022-02-23 14:55:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-02-23 14:55:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:48,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:48,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195029986] [2022-02-23 14:55:48,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195029986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:48,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:48,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-23 14:55:48,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777270079] [2022-02-23 14:55:48,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:48,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-23 14:55:48,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:48,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-23 14:55:48,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-02-23 14:55:48,204 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) [2022-02-23 14:55:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:48,845 INFO L93 Difference]: Finished difference Result 709 states and 864 transitions. [2022-02-23 14:55:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:55:48,845 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 [2022-02-23 14:55:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:48,846 INFO L225 Difference]: With dead ends: 709 [2022-02-23 14:55:48,846 INFO L226 Difference]: Without dead ends: 658 [2022-02-23 14:55:48,846 INFO L932 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 [2022-02-23 14:55:48,847 INFO L933 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 [2022-02-23 14:55:48,847 INFO L934 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] [2022-02-23 14:55:48,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-02-23 14:55:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 634. [2022-02-23 14:55:48,904 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) [2022-02-23 14:55:48,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 773 transitions. [2022-02-23 14:55:48,905 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 773 transitions. Word has length 73 [2022-02-23 14:55:48,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:48,905 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 773 transitions. [2022-02-23 14:55:48,906 INFO L471 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) [2022-02-23 14:55:48,906 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 773 transitions. [2022-02-23 14:55:48,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 14:55:48,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:48,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:48,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-23 14:55:48,907 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1773843285, now seen corresponding path program 1 times [2022-02-23 14:55:48,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:48,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120388961] [2022-02-23 14:55:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:48,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:48,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-23 14:55:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:49,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:49,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120388961] [2022-02-23 14:55:49,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120388961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:49,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:49,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-23 14:55:49,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131125688] [2022-02-23 14:55:49,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:49,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-23 14:55:49,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-23 14:55:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-02-23 14:55:49,153 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) [2022-02-23 14:55:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:52,191 INFO L93 Difference]: Finished difference Result 1487 states and 1799 transitions. [2022-02-23 14:55:52,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-23 14:55:52,192 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 [2022-02-23 14:55:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:52,194 INFO L225 Difference]: With dead ends: 1487 [2022-02-23 14:55:52,194 INFO L226 Difference]: Without dead ends: 1340 [2022-02-23 14:55:52,195 INFO L932 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 [2022-02-23 14:55:52,195 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 2456 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:52,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 1265 Invalid, 3948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 3184 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 14:55:52,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-02-23 14:55:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1028. [2022-02-23 14:55:52,292 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) [2022-02-23 14:55:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1275 transitions. [2022-02-23 14:55:52,293 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1275 transitions. Word has length 73 [2022-02-23 14:55:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:52,293 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 1275 transitions. [2022-02-23 14:55:52,293 INFO L471 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) [2022-02-23 14:55:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1275 transitions. [2022-02-23 14:55:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 14:55:52,295 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:52,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:52,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-23 14:55:52,295 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:52,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1094571031, now seen corresponding path program 1 times [2022-02-23 14:55:52,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:52,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544039422] [2022-02-23 14:55:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-02-23 14:55:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-02-23 14:55:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:52,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:52,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544039422] [2022-02-23 14:55:52,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544039422] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:52,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:52,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-23 14:55:52,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999699837] [2022-02-23 14:55:52,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:52,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-23 14:55:52,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:52,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-23 14:55:52,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-02-23 14:55:52,477 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) [2022-02-23 14:55:54,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:54,216 INFO L93 Difference]: Finished difference Result 1359 states and 1652 transitions. [2022-02-23 14:55:54,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-23 14:55:54,217 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 [2022-02-23 14:55:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:54,219 INFO L225 Difference]: With dead ends: 1359 [2022-02-23 14:55:54,219 INFO L226 Difference]: Without dead ends: 1229 [2022-02-23 14:55:54,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-02-23 14:55:54,220 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 1888 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:54,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1892 Valid, 1284 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-23 14:55:54,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-02-23 14:55:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1105. [2022-02-23 14:55:54,348 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) [2022-02-23 14:55:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1363 transitions. [2022-02-23 14:55:54,350 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1363 transitions. Word has length 73 [2022-02-23 14:55:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:54,350 INFO L470 AbstractCegarLoop]: Abstraction has 1105 states and 1363 transitions. [2022-02-23 14:55:54,350 INFO L471 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) [2022-02-23 14:55:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1363 transitions. [2022-02-23 14:55:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-23 14:55:54,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:54,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:54,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-23 14:55:54,352 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -888306664, now seen corresponding path program 1 times [2022-02-23 14:55:54,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:54,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357263201] [2022-02-23 14:55:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-02-23 14:55:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:55:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-23 14:55:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:54,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:54,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357263201] [2022-02-23 14:55:54,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357263201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:54,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:54,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-23 14:55:54,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177953779] [2022-02-23 14:55:54,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:54,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-23 14:55:54,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:54,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-23 14:55:54,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-02-23 14:55:54,557 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) [2022-02-23 14:55:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:55,829 INFO L93 Difference]: Finished difference Result 1178 states and 1449 transitions. [2022-02-23 14:55:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-23 14:55:55,830 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 [2022-02-23 14:55:55,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:55,832 INFO L225 Difference]: With dead ends: 1178 [2022-02-23 14:55:55,832 INFO L226 Difference]: Without dead ends: 1087 [2022-02-23 14:55:55,833 INFO L932 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 [2022-02-23 14:55:55,833 INFO L933 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:55,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 1360 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-23 14:55:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-02-23 14:55:55,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1057. [2022-02-23 14:55:55,955 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) [2022-02-23 14:55:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1301 transitions. [2022-02-23 14:55:55,956 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1301 transitions. Word has length 75 [2022-02-23 14:55:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:55,956 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 1301 transitions. [2022-02-23 14:55:55,956 INFO L471 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) [2022-02-23 14:55:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1301 transitions. [2022-02-23 14:55:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 14:55:55,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:55,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:55,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-23 14:55:55,958 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:55,958 INFO L85 PathProgramCache]: Analyzing trace with hash 384049071, now seen corresponding path program 1 times [2022-02-23 14:55:55,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:55,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537793638] [2022-02-23 14:55:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:55,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 14:55:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 14:55:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 14:55:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 14:55:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-23 14:55:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-02-23 14:55:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-23 14:55:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 14:55:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 14:55:56,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 14:55:56,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537793638] [2022-02-23 14:55:56,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537793638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 14:55:56,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 14:55:56,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-23 14:55:56,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135985627] [2022-02-23 14:55:56,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 14:55:56,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-23 14:55:56,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 14:55:56,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-23 14:55:56,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-02-23 14:55:56,103 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) [2022-02-23 14:55:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 14:55:56,811 INFO L93 Difference]: Finished difference Result 1132 states and 1387 transitions. [2022-02-23 14:55:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 14:55:56,812 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 [2022-02-23 14:55:56,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 14:55:56,814 INFO L225 Difference]: With dead ends: 1132 [2022-02-23 14:55:56,814 INFO L226 Difference]: Without dead ends: 1071 [2022-02-23 14:55:56,814 INFO L932 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 [2022-02-23 14:55:56,814 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 314 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-23 14:55:56,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 1047 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-23 14:55:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-02-23 14:55:56,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1041. [2022-02-23 14:55:56,930 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) [2022-02-23 14:55:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1277 transitions. [2022-02-23 14:55:56,931 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1277 transitions. Word has length 73 [2022-02-23 14:55:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 14:55:56,931 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1277 transitions. [2022-02-23 14:55:56,931 INFO L471 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) [2022-02-23 14:55:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1277 transitions. [2022-02-23 14:55:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-23 14:55:56,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 14:55:56,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:56,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-23 14:55:56,934 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 14:55:56,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 14:55:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash -644807577, now seen corresponding path program 1 times [2022-02-23 14:55:56,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 14:55:56,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805925599] [2022-02-23 14:55:56,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 14:55:56,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 14:55:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-23 14:55:56,946 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-23 14:55:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-23 14:55:57,005 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-23 14:55:57,006 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-23 14:55:57,006 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 14:55:57,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-23 14:55:57,010 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 14:55:57,012 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 14:55:57,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 02:55:57 BoogieIcfgContainer [2022-02-23 14:55:57,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 14:55:57,100 INFO L158 Benchmark]: Toolchain (without parser) took 133181.75ms. Allocated memory was 168.8MB in the beginning and 640.7MB in the end (delta: 471.9MB). Free memory was 109.1MB in the beginning and 554.5MB in the end (delta: -445.4MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB. [2022-02-23 14:55:57,100 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 14:55:57,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.41ms. Allocated memory was 168.8MB in the beginning and 213.9MB in the end (delta: 45.1MB). Free memory was 108.9MB in the beginning and 168.2MB in the end (delta: -59.3MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. [2022-02-23 14:55:57,100 INFO L158 Benchmark]: Boogie Preprocessor took 67.41ms. Allocated memory is still 213.9MB. Free memory was 168.2MB in the beginning and 163.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-02-23 14:55:57,100 INFO L158 Benchmark]: RCFGBuilder took 1042.95ms. Allocated memory is still 213.9MB. Free memory was 163.0MB in the beginning and 160.5MB in the end (delta: 2.5MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. [2022-02-23 14:55:57,100 INFO L158 Benchmark]: TraceAbstraction took 131648.22ms. Allocated memory was 213.9MB in the beginning and 640.7MB in the end (delta: 426.8MB). Free memory was 159.9MB in the beginning and 554.5MB in the end (delta: -394.6MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. [2022-02-23 14:55:57,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 405.41ms. Allocated memory was 168.8MB in the beginning and 213.9MB in the end (delta: 45.1MB). Free memory was 108.9MB in the beginning and 168.2MB in the end (delta: -59.3MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.41ms. Allocated memory is still 213.9MB. Free memory was 168.2MB in the beginning and 163.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1042.95ms. Allocated memory is still 213.9MB. Free memory was 163.0MB in the beginning and 160.5MB in the end (delta: 2.5MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. * TraceAbstraction took 131648.22ms. Allocated memory was 213.9MB in the beginning and 640.7MB in the end (delta: 426.8MB). Free memory was 159.9MB in the beginning and 554.5MB in the end (delta: -394.6MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 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: 131.5s, OverallIterations: 70, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 111.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69224 SdHoareTripleChecker+Valid, 94.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68821 mSDsluCounter, 120767 SdHoareTripleChecker+Invalid, 80.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80771 mSDsCounter, 23715 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193518 IncrementalHoareTripleChecker+Invalid, 217233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23715 mSolverCounterUnsat, 39996 mSDtfsCounter, 193518 mSolverCounterSat, 1.0s 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: 4.7s AutomataMinimizationTime, 69 MinimizatonAttempts, 7760 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 12.6s 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! [2022-02-23 14:55:57,134 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...