/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:42:26,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:42:26,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:42:26,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:42:26,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:42:26,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:42:26,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:42:26,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:42:26,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:42:26,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:42:26,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:42:26,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:42:26,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:42:26,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:42:26,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:42:26,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:42:26,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:42:26,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:42:26,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:42:26,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:42:26,155 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:42:26,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:42:26,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:42:26,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:42:26,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:42:26,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:42:26,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:42:26,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:42:26,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:42:26,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:42:26,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:42:26,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:42:26,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:42:26,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:42:26,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:42:26,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:42:26,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:42:26,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:42:26,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:42:26,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:42:26,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:42:26,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:42:26,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:42:26,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:42:26,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:42:26,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:42:26,186 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:42:26,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:42:26,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:42:26,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:42:26,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:42:26,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:42:26,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:42:26,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:42:26,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:42:26,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:42:26,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:42:26,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:42:26,189 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:42:26,189 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:42:26,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:42:26,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:42:26,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:42:26,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:42:26,449 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:42:26,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-03-17 18:42:26,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59f0354f/0491d35388184e47983af659db78f674/FLAG8b0dd52d0 [2022-03-17 18:42:27,035 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:42:27,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-03-17 18:42:27,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59f0354f/0491d35388184e47983af659db78f674/FLAG8b0dd52d0 [2022-03-17 18:42:27,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59f0354f/0491d35388184e47983af659db78f674 [2022-03-17 18:42:27,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:42:27,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:42:27,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:42:27,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:42:27,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:42:27,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e054a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27, skipping insertion in model container [2022-03-17 18:42:27,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:42:27,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:42:27,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-03-17 18:42:27,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:42:27,765 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:42:27,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-03-17 18:42:27,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:42:27,867 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:42:27,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27 WrapperNode [2022-03-17 18:42:27,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:42:27,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:42:27,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:42:27,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:42:27,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:27,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:28,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:42:28,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:42:28,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:42:28,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:42:28,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (1/1) ... [2022-03-17 18:42:28,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:42:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:42:28,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:42:28,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:42:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:42:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:42:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:42:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-17 18:42:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-17 18:42:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-03-17 18:42:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-03-17 18:42:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2022-03-17 18:42:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2022-03-17 18:42:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2022-03-17 18:42:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-03-17 18:42:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-03-17 18:42:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2022-03-17 18:42:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-03-17 18:42:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:42:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-03-17 18:42:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-17 18:42:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:42:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:42:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:42:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:42:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2022-03-17 18:42:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-03-17 18:42:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:42:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:42:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:42:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:42:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:42:28,440 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:42:28,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:42:28,569 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:28,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-03-17 18:42:28,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-03-17 18:42:28,671 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:28,701 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-03-17 18:42:28,702 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-03-17 18:42:28,720 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:28,732 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-17 18:42:28,732 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-17 18:42:28,778 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:28,831 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-03-17 18:42:28,831 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2022-03-17 18:42:28,831 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-03-17 18:42:28,838 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:28,991 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-03-17 18:42:28,992 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-03-17 18:42:28,993 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:29,019 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-03-17 18:42:29,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-03-17 18:42:29,053 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:29,070 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-03-17 18:42:29,070 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-03-17 18:42:29,074 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:29,218 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-03-17 18:42:29,219 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-03-17 18:42:29,228 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:42:29,232 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-17 18:42:29,232 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-17 18:42:29,255 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:42:29,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:42:29,270 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:42:29,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:42:29 BoogieIcfgContainer [2022-03-17 18:42:29,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:42:29,275 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:42:29,275 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:42:29,276 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:42:29,279 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:42:29" (1/1) ... [2022-03-17 18:42:29,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:42:29 BasicIcfg [2022-03-17 18:42:29,341 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:42:29,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:42:29,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:42:29,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:42:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:42:27" (1/4) ... [2022-03-17 18:42:29,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c6167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:42:29, skipping insertion in model container [2022-03-17 18:42:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:42:27" (2/4) ... [2022-03-17 18:42:29,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c6167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:42:29, skipping insertion in model container [2022-03-17 18:42:29,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:42:29" (3/4) ... [2022-03-17 18:42:29,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c6167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:42:29, skipping insertion in model container [2022-03-17 18:42:29,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:42:29" (4/4) ... [2022-03-17 18:42:29,353 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.cJordan [2022-03-17 18:42:29,357 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:42:29,358 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:42:29,399 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:42:29,406 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:42:29,406 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:42:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 383 states have (on average 1.4882506527415145) internal successors, (570), 404 states have internal predecessors, (570), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) [2022-03-17 18:42:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-17 18:42:29,445 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:29,446 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:29,446 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:29,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash 784814983, now seen corresponding path program 1 times [2022-03-17 18:42:29,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:29,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962963854] [2022-03-17 18:42:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:29,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:29,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:29,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962963854] [2022-03-17 18:42:29,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962963854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:29,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:29,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:42:29,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265002724] [2022-03-17 18:42:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:29,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:42:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:29,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:42:29,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:42:29,886 INFO L87 Difference]: Start difference. First operand has 517 states, 383 states have (on average 1.4882506527415145) internal successors, (570), 404 states have internal predecessors, (570), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (103), 98 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-17 18:42:32,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:32,249 INFO L93 Difference]: Finished difference Result 681 states and 1043 transitions. [2022-03-17 18:42:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:42:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-03-17 18:42:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:32,271 INFO L225 Difference]: With dead ends: 681 [2022-03-17 18:42:32,271 INFO L226 Difference]: Without dead ends: 665 [2022-03-17 18:42:32,273 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:32,276 INFO L912 BasicCegarLoop]: 741 mSDtfsCounter, 399 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:32,276 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 1013 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:42:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-03-17 18:42:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2022-03-17 18:42:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 397 states have internal predecessors, (551), 103 states have call successors, (103), 29 states have call predecessors, (103), 27 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-03-17 18:42:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2022-03-17 18:42:32,357 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2022-03-17 18:42:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:32,357 INFO L478 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2022-03-17 18:42:32,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-17 18:42:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2022-03-17 18:42:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-17 18:42:32,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:32,358 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:32,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:42:32,359 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash -30338372, now seen corresponding path program 1 times [2022-03-17 18:42:32,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:32,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951592586] [2022-03-17 18:42:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:32,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951592586] [2022-03-17 18:42:32,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951592586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:32,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:32,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:42:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625139727] [2022-03-17 18:42:32,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:32,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:42:32,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:42:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:32,518 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:34,196 INFO L93 Difference]: Finished difference Result 847 states and 1261 transitions. [2022-03-17 18:42:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:42:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-03-17 18:42:34,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:34,208 INFO L225 Difference]: With dead ends: 847 [2022-03-17 18:42:34,208 INFO L226 Difference]: Without dead ends: 846 [2022-03-17 18:42:34,213 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:34,214 INFO L912 BasicCegarLoop]: 849 mSDtfsCounter, 1498 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:34,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 1021 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:42:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-03-17 18:42:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2022-03-17 18:42:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 502 states have (on average 1.408366533864542) internal successors, (707), 510 states have internal predecessors, (707), 112 states have call successors, (112), 40 states have call predecessors, (112), 49 states have return successors, (145), 119 states have call predecessors, (145), 99 states have call successors, (145) [2022-03-17 18:42:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2022-03-17 18:42:34,278 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2022-03-17 18:42:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:34,278 INFO L478 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2022-03-17 18:42:34,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2022-03-17 18:42:34,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-17 18:42:34,285 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:34,285 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:34,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:42:34,285 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:34,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash -759392990, now seen corresponding path program 1 times [2022-03-17 18:42:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:34,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235520016] [2022-03-17 18:42:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:34,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:34,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235520016] [2022-03-17 18:42:34,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235520016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:34,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:34,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:42:34,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109270665] [2022-03-17 18:42:34,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:34,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:42:34,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:34,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:42:34,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:34,514 INFO L87 Difference]: Start difference. First operand 664 states and 964 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:36,416 INFO L93 Difference]: Finished difference Result 970 states and 1415 transitions. [2022-03-17 18:42:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:42:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-03-17 18:42:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:36,421 INFO L225 Difference]: With dead ends: 970 [2022-03-17 18:42:36,421 INFO L226 Difference]: Without dead ends: 970 [2022-03-17 18:42:36,422 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:36,428 INFO L912 BasicCegarLoop]: 725 mSDtfsCounter, 1121 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:36,431 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 886 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:42:36,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-03-17 18:42:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2022-03-17 18:42:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 611 states have (on average 1.4042553191489362) internal successors, (858), 615 states have internal predecessors, (858), 114 states have call successors, (114), 46 states have call predecessors, (114), 63 states have return successors, (163), 130 states have call predecessors, (163), 104 states have call successors, (163) [2022-03-17 18:42:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2022-03-17 18:42:36,478 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2022-03-17 18:42:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:36,478 INFO L478 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2022-03-17 18:42:36,479 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2022-03-17 18:42:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-17 18:42:36,480 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:36,481 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:36,481 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:42:36,481 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1280175921, now seen corresponding path program 1 times [2022-03-17 18:42:36,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:36,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38033096] [2022-03-17 18:42:36,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:36,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:36,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:36,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38033096] [2022-03-17 18:42:36,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38033096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:36,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:36,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:42:36,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106338151] [2022-03-17 18:42:36,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:36,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:42:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:42:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:36,641 INFO L87 Difference]: Start difference. First operand 789 states and 1135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:38,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:38,602 INFO L93 Difference]: Finished difference Result 1344 states and 2031 transitions. [2022-03-17 18:42:38,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:42:38,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-03-17 18:42:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:38,618 INFO L225 Difference]: With dead ends: 1344 [2022-03-17 18:42:38,618 INFO L226 Difference]: Without dead ends: 1344 [2022-03-17 18:42:38,618 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:38,619 INFO L912 BasicCegarLoop]: 1006 mSDtfsCounter, 1482 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:38,619 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 1262 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:42:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-03-17 18:42:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2022-03-17 18:42:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 708 states have (on average 1.4138418079096045) internal successors, (1001), 711 states have internal predecessors, (1001), 127 states have call successors, (127), 54 states have call predecessors, (127), 71 states have return successors, (220), 144 states have call predecessors, (220), 117 states have call successors, (220) [2022-03-17 18:42:38,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2022-03-17 18:42:38,651 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2022-03-17 18:42:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:38,651 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2022-03-17 18:42:38,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:38,652 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2022-03-17 18:42:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-17 18:42:38,653 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:38,653 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:38,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:42:38,653 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 998226604, now seen corresponding path program 1 times [2022-03-17 18:42:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:38,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771620107] [2022-03-17 18:42:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:38,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:38,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:38,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771620107] [2022-03-17 18:42:38,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771620107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:38,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:38,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 18:42:38,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240809128] [2022-03-17 18:42:38,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:38,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:42:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:42:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:42:38,899 INFO L87 Difference]: Start difference. First operand 907 states and 1348 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-17 18:42:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:40,898 INFO L93 Difference]: Finished difference Result 1046 states and 1583 transitions. [2022-03-17 18:42:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:42:40,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-03-17 18:42:40,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:40,904 INFO L225 Difference]: With dead ends: 1046 [2022-03-17 18:42:40,904 INFO L226 Difference]: Without dead ends: 1046 [2022-03-17 18:42:40,904 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:42:40,906 INFO L912 BasicCegarLoop]: 742 mSDtfsCounter, 3730 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 1327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:40,906 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3736 Valid, 889 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1327 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:42:40,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-03-17 18:42:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2022-03-17 18:42:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 649 states have (on average 1.399075500770416) internal successors, (908), 653 states have internal predecessors, (908), 118 states have call successors, (118), 50 states have call predecessors, (118), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2022-03-17 18:42:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2022-03-17 18:42:40,932 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2022-03-17 18:42:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:40,933 INFO L478 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2022-03-17 18:42:40,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-17 18:42:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2022-03-17 18:42:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-17 18:42:40,935 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:40,935 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:40,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:42:40,935 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 936943045, now seen corresponding path program 1 times [2022-03-17 18:42:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398792695] [2022-03-17 18:42:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:40,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:41,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:41,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398792695] [2022-03-17 18:42:41,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398792695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:41,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:41,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:42:41,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747270043] [2022-03-17 18:42:41,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:41,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:42:41,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:41,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:42:41,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:41,081 INFO L87 Difference]: Start difference. First operand 835 states and 1203 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:42,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:42,599 INFO L93 Difference]: Finished difference Result 961 states and 1420 transitions. [2022-03-17 18:42:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:42:42,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-03-17 18:42:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:42,605 INFO L225 Difference]: With dead ends: 961 [2022-03-17 18:42:42,605 INFO L226 Difference]: Without dead ends: 961 [2022-03-17 18:42:42,605 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:42:42,607 INFO L912 BasicCegarLoop]: 713 mSDtfsCounter, 422 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:42,607 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 960 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:42:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-03-17 18:42:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2022-03-17 18:42:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 649 states have (on average 1.3959938366718028) internal successors, (906), 652 states have internal predecessors, (906), 117 states have call successors, (117), 50 states have call predecessors, (117), 67 states have return successors, (177), 134 states have call predecessors, (177), 108 states have call successors, (177) [2022-03-17 18:42:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2022-03-17 18:42:42,628 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2022-03-17 18:42:42,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:42,628 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2022-03-17 18:42:42,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2022-03-17 18:42:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-17 18:42:42,630 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:42,630 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:42,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:42:42,631 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:42,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1670644950, now seen corresponding path program 1 times [2022-03-17 18:42:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:42,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699673888] [2022-03-17 18:42:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:42,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:42,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:42,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699673888] [2022-03-17 18:42:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699673888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:42,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:42,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:42:42,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167362209] [2022-03-17 18:42:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:42,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:42:42,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:42,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:42:42,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:42:42,796 INFO L87 Difference]: Start difference. First operand 834 states and 1200 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:44,703 INFO L93 Difference]: Finished difference Result 999 states and 1436 transitions. [2022-03-17 18:42:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:42:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-03-17 18:42:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:44,712 INFO L225 Difference]: With dead ends: 999 [2022-03-17 18:42:44,712 INFO L226 Difference]: Without dead ends: 999 [2022-03-17 18:42:44,712 INFO L911 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 [2022-03-17 18:42:44,713 INFO L912 BasicCegarLoop]: 821 mSDtfsCounter, 1114 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:44,713 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 1288 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:42:44,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-03-17 18:42:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2022-03-17 18:42:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 571 states have (on average 1.3870402802101576) internal successors, (792), 575 states have internal predecessors, (792), 106 states have call successors, (106), 45 states have call predecessors, (106), 58 states have return successors, (131), 118 states have call predecessors, (131), 97 states have call successors, (131) [2022-03-17 18:42:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2022-03-17 18:42:44,733 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2022-03-17 18:42:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:44,733 INFO L478 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2022-03-17 18:42:44,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:44,734 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2022-03-17 18:42:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-17 18:42:44,735 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:44,735 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:44,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:42:44,735 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:44,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:44,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1528829481, now seen corresponding path program 1 times [2022-03-17 18:42:44,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:44,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624858845] [2022-03-17 18:42:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:44,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:44,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:44,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624858845] [2022-03-17 18:42:44,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624858845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:44,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:44,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:42:44,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085115140] [2022-03-17 18:42:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:44,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:42:44,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:44,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:42:44,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:42:44,895 INFO L87 Difference]: Start difference. First operand 736 states and 1029 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:45,901 INFO L93 Difference]: Finished difference Result 959 states and 1380 transitions. [2022-03-17 18:42:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:42:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-03-17 18:42:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:45,905 INFO L225 Difference]: With dead ends: 959 [2022-03-17 18:42:45,905 INFO L226 Difference]: Without dead ends: 959 [2022-03-17 18:42:45,906 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:45,906 INFO L912 BasicCegarLoop]: 672 mSDtfsCounter, 1857 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:45,907 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1865 Valid, 754 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:42:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-03-17 18:42:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2022-03-17 18:42:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3983193277310924) internal successors, (832), 608 states have internal predecessors, (832), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2022-03-17 18:42:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2022-03-17 18:42:45,924 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2022-03-17 18:42:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:45,925 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2022-03-17 18:42:45,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-17 18:42:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2022-03-17 18:42:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-17 18:42:45,927 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:45,927 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:45,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:42:45,927 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash 689414503, now seen corresponding path program 1 times [2022-03-17 18:42:45,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:45,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95089833] [2022-03-17 18:42:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:45,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-03-17 18:42:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:46,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:46,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95089833] [2022-03-17 18:42:46,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95089833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:46,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:46,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:42:46,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416865088] [2022-03-17 18:42:46,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:46,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:42:46,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:46,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:42:46,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:42:46,075 INFO L87 Difference]: Start difference. First operand 762 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-17 18:42:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:47,290 INFO L93 Difference]: Finished difference Result 942 states and 1357 transitions. [2022-03-17 18:42:47,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:42:47,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-03-17 18:42:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:47,294 INFO L225 Difference]: With dead ends: 942 [2022-03-17 18:42:47,294 INFO L226 Difference]: Without dead ends: 942 [2022-03-17 18:42:47,295 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:42:47,295 INFO L912 BasicCegarLoop]: 791 mSDtfsCounter, 936 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:47,296 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 1318 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 18:42:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-03-17 18:42:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2022-03-17 18:42:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 595 states have (on average 1.3966386554621848) internal successors, (831), 608 states have internal predecessors, (831), 108 states have call successors, (108), 48 states have call predecessors, (108), 58 states have return successors, (124), 110 states have call predecessors, (124), 100 states have call successors, (124) [2022-03-17 18:42:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2022-03-17 18:42:47,313 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2022-03-17 18:42:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:47,314 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2022-03-17 18:42:47,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (10), 7 states have call predecessors, (10), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-17 18:42:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2022-03-17 18:42:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-17 18:42:47,316 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:47,316 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:47,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:42:47,316 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash -735623654, now seen corresponding path program 1 times [2022-03-17 18:42:47,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:47,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359860780] [2022-03-17 18:42:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:47,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-03-17 18:42:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:47,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:47,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359860780] [2022-03-17 18:42:47,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359860780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:47,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:47,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:42:47,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270843882] [2022-03-17 18:42:47,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:47,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:42:47,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:47,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:42:47,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:42:47,438 INFO L87 Difference]: Start difference. First operand 762 states and 1063 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-17 18:42:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:48,686 INFO L93 Difference]: Finished difference Result 897 states and 1299 transitions. [2022-03-17 18:42:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:42:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-03-17 18:42:48,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:48,690 INFO L225 Difference]: With dead ends: 897 [2022-03-17 18:42:48,690 INFO L226 Difference]: Without dead ends: 897 [2022-03-17 18:42:48,690 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:42:48,691 INFO L912 BasicCegarLoop]: 667 mSDtfsCounter, 1507 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:48,691 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 1140 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 18:42:48,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-03-17 18:42:48,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2022-03-17 18:42:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 588 states have (on average 1.3979591836734695) internal successors, (822), 601 states have internal predecessors, (822), 106 states have call successors, (106), 46 states have call predecessors, (106), 56 states have return successors, (122), 108 states have call predecessors, (122), 98 states have call successors, (122) [2022-03-17 18:42:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2022-03-17 18:42:48,714 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2022-03-17 18:42:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:48,714 INFO L478 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2022-03-17 18:42:48,715 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (9), 7 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-03-17 18:42:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2022-03-17 18:42:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 18:42:48,716 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:48,717 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:48,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:42:48,717 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:48,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1452242056, now seen corresponding path program 1 times [2022-03-17 18:42:48,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:48,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363676848] [2022-03-17 18:42:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:48,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:42:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:42:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:48,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363676848] [2022-03-17 18:42:48,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363676848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:48,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:48,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 18:42:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729086296] [2022-03-17 18:42:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:48,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 18:42:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 18:42:48,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:42:48,942 INFO L87 Difference]: Start difference. First operand 751 states and 1050 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-17 18:42:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:51,571 INFO L93 Difference]: Finished difference Result 1006 states and 1439 transitions. [2022-03-17 18:42:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 18:42:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2022-03-17 18:42:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:51,574 INFO L225 Difference]: With dead ends: 1006 [2022-03-17 18:42:51,574 INFO L226 Difference]: Without dead ends: 1006 [2022-03-17 18:42:51,575 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-17 18:42:51,575 INFO L912 BasicCegarLoop]: 754 mSDtfsCounter, 1443 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:51,575 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2000 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:42:51,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-03-17 18:42:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2022-03-17 18:42:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 623 states have (on average 1.3964686998394864) internal successors, (870), 635 states have internal predecessors, (870), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-17 18:42:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2022-03-17 18:42:51,593 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2022-03-17 18:42:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:51,594 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2022-03-17 18:42:51,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-17 18:42:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2022-03-17 18:42:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 18:42:51,596 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:51,596 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:51,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:42:51,596 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:51,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1568241764, now seen corresponding path program 1 times [2022-03-17 18:42:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:51,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329413191] [2022-03-17 18:42:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:42:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:42:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:51,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:51,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329413191] [2022-03-17 18:42:51,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329413191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:51,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:51,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 18:42:51,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305229845] [2022-03-17 18:42:51,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:51,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 18:42:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 18:42:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:42:51,787 INFO L87 Difference]: Start difference. First operand 794 states and 1111 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 18:42:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:53,689 INFO L93 Difference]: Finished difference Result 924 states and 1335 transitions. [2022-03-17 18:42:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:42:53,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2022-03-17 18:42:53,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:53,693 INFO L225 Difference]: With dead ends: 924 [2022-03-17 18:42:53,693 INFO L226 Difference]: Without dead ends: 924 [2022-03-17 18:42:53,693 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:42:53,694 INFO L912 BasicCegarLoop]: 652 mSDtfsCounter, 1534 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:53,694 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 1454 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 18:42:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-17 18:42:53,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 797. [2022-03-17 18:42:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 626 states have (on average 1.3961661341853036) internal successors, (874), 638 states have internal predecessors, (874), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-17 18:42:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2022-03-17 18:42:53,711 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2022-03-17 18:42:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:53,711 INFO L478 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2022-03-17 18:42:53,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 18:42:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2022-03-17 18:42:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 18:42:53,713 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:53,713 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:53,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:42:53,713 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:53,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1729653179, now seen corresponding path program 1 times [2022-03-17 18:42:53,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:53,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17013366] [2022-03-17 18:42:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:53,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:42:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:42:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:53,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:53,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17013366] [2022-03-17 18:42:53,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17013366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:53,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:53,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:42:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593573811] [2022-03-17 18:42:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:53,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:42:53,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:53,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:42:53,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:42:53,918 INFO L87 Difference]: Start difference. First operand 797 states and 1115 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-17 18:42:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:56,181 INFO L93 Difference]: Finished difference Result 914 states and 1320 transitions. [2022-03-17 18:42:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:42:56,182 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2022-03-17 18:42:56,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:56,185 INFO L225 Difference]: With dead ends: 914 [2022-03-17 18:42:56,185 INFO L226 Difference]: Without dead ends: 914 [2022-03-17 18:42:56,185 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:42:56,185 INFO L912 BasicCegarLoop]: 652 mSDtfsCounter, 1576 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:56,186 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 1818 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:42:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-03-17 18:42:56,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2022-03-17 18:42:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 621 states have (on average 1.391304347826087) internal successors, (864), 633 states have internal predecessors, (864), 110 states have call successors, (110), 49 states have call predecessors, (110), 60 states have return successors, (131), 114 states have call predecessors, (131), 102 states have call successors, (131) [2022-03-17 18:42:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2022-03-17 18:42:56,202 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2022-03-17 18:42:56,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:56,202 INFO L478 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2022-03-17 18:42:56,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-03-17 18:42:56,202 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2022-03-17 18:42:56,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 18:42:56,204 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:56,204 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:56,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:42:56,204 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:56,204 INFO L85 PathProgramCache]: Analyzing trace with hash -111891045, now seen corresponding path program 1 times [2022-03-17 18:42:56,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:56,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726711574] [2022-03-17 18:42:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:42:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:42:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:56,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:56,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726711574] [2022-03-17 18:42:56,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726711574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:56,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:56,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 18:42:56,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408202382] [2022-03-17 18:42:56,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:56,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:42:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:56,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:42:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:42:56,393 INFO L87 Difference]: Start difference. First operand 792 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:42:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:58,166 INFO L93 Difference]: Finished difference Result 1074 states and 1532 transitions. [2022-03-17 18:42:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:42:58,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2022-03-17 18:42:58,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:58,169 INFO L225 Difference]: With dead ends: 1074 [2022-03-17 18:42:58,169 INFO L226 Difference]: Without dead ends: 1074 [2022-03-17 18:42:58,169 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:58,170 INFO L912 BasicCegarLoop]: 799 mSDtfsCounter, 523 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:58,170 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1361 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:42:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-17 18:42:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2022-03-17 18:42:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 663 states have (on average 1.3725490196078431) internal successors, (910), 677 states have internal predecessors, (910), 112 states have call successors, (112), 51 states have call predecessors, (112), 72 states have return successors, (143), 126 states have call predecessors, (143), 104 states have call successors, (143) [2022-03-17 18:42:58,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2022-03-17 18:42:58,187 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2022-03-17 18:42:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:58,187 INFO L478 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2022-03-17 18:42:58,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:42:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2022-03-17 18:42:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-17 18:42:58,189 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:58,189 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:58,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:42:58,190 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:58,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:58,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1040673977, now seen corresponding path program 1 times [2022-03-17 18:42:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:58,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929756034] [2022-03-17 18:42:58,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:42:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:42:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-03-17 18:42:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-03-17 18:42:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:42:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:42:58,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929756034] [2022-03-17 18:42:58,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929756034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:42:58,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:42:58,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:42:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295306839] [2022-03-17 18:42:58,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:42:58,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:42:58,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:42:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:42:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:42:58,315 INFO L87 Difference]: Start difference. First operand 848 states and 1165 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:42:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:42:59,903 INFO L93 Difference]: Finished difference Result 937 states and 1338 transitions. [2022-03-17 18:42:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:42:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-03-17 18:42:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:42:59,906 INFO L225 Difference]: With dead ends: 937 [2022-03-17 18:42:59,906 INFO L226 Difference]: Without dead ends: 937 [2022-03-17 18:42:59,906 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:42:59,907 INFO L912 BasicCegarLoop]: 641 mSDtfsCounter, 1355 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:42:59,907 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 1153 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:42:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2022-03-17 18:42:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 817. [2022-03-17 18:42:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 639 states have (on average 1.3724569640062598) internal successors, (877), 651 states have internal predecessors, (877), 110 states have call successors, (110), 50 states have call predecessors, (110), 67 states have return successors, (138), 121 states have call predecessors, (138), 103 states have call successors, (138) [2022-03-17 18:42:59,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1125 transitions. [2022-03-17 18:42:59,924 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1125 transitions. Word has length 54 [2022-03-17 18:42:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:42:59,924 INFO L478 AbstractCegarLoop]: Abstraction has 817 states and 1125 transitions. [2022-03-17 18:42:59,924 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:42:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1125 transitions. [2022-03-17 18:42:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 18:42:59,926 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:42:59,926 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:42:59,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:42:59,926 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:42:59,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:42:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1255093406, now seen corresponding path program 1 times [2022-03-17 18:42:59,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:42:59,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781159471] [2022-03-17 18:42:59,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:42:59,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:42:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:42:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:42:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:00,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:00,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781159471] [2022-03-17 18:43:00,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781159471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:00,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:00,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 18:43:00,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102498488] [2022-03-17 18:43:00,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:00,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:43:00,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:00,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:43:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:43:00,097 INFO L87 Difference]: Start difference. First operand 817 states and 1125 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:01,352 INFO L93 Difference]: Finished difference Result 960 states and 1364 transitions. [2022-03-17 18:43:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:43:01,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-03-17 18:43:01,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:01,356 INFO L225 Difference]: With dead ends: 960 [2022-03-17 18:43:01,356 INFO L226 Difference]: Without dead ends: 960 [2022-03-17 18:43:01,357 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:43:01,357 INFO L912 BasicCegarLoop]: 694 mSDtfsCounter, 1541 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:01,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 1365 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-17 18:43:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-17 18:43:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 836. [2022-03-17 18:43:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 655 states have (on average 1.369465648854962) internal successors, (897), 668 states have internal predecessors, (897), 111 states have call successors, (111), 51 states have call predecessors, (111), 69 states have return successors, (140), 123 states have call predecessors, (140), 104 states have call successors, (140) [2022-03-17 18:43:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2022-03-17 18:43:01,374 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 52 [2022-03-17 18:43:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:01,375 INFO L478 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2022-03-17 18:43:01,375 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2022-03-17 18:43:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 18:43:01,377 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:01,377 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:01,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:43:01,377 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash 856883353, now seen corresponding path program 1 times [2022-03-17 18:43:01,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:01,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915117089] [2022-03-17 18:43:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:43:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:01,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:01,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915117089] [2022-03-17 18:43:01,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915117089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:01,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:01,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:43:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922638471] [2022-03-17 18:43:01,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:01,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:43:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:43:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:43:01,574 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:43:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:03,810 INFO L93 Difference]: Finished difference Result 978 states and 1385 transitions. [2022-03-17 18:43:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:43:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2022-03-17 18:43:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:03,813 INFO L225 Difference]: With dead ends: 978 [2022-03-17 18:43:03,813 INFO L226 Difference]: Without dead ends: 977 [2022-03-17 18:43:03,814 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:43:03,814 INFO L912 BasicCegarLoop]: 707 mSDtfsCounter, 724 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 4536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:03,814 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 2474 Invalid, 4536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:43:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-03-17 18:43:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 855. [2022-03-17 18:43:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 671 states have (on average 1.3621460506706409) internal successors, (914), 685 states have internal predecessors, (914), 112 states have call successors, (112), 51 states have call predecessors, (112), 71 states have return successors, (143), 126 states have call predecessors, (143), 105 states have call successors, (143) [2022-03-17 18:43:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1169 transitions. [2022-03-17 18:43:03,830 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1169 transitions. Word has length 51 [2022-03-17 18:43:03,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:03,830 INFO L478 AbstractCegarLoop]: Abstraction has 855 states and 1169 transitions. [2022-03-17 18:43:03,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:43:03,830 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1169 transitions. [2022-03-17 18:43:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 18:43:03,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:03,832 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:03,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:43:03,832 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 856915097, now seen corresponding path program 1 times [2022-03-17 18:43:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:03,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822748954] [2022-03-17 18:43:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:43:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:03,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822748954] [2022-03-17 18:43:03,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822748954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:03,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:03,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:43:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319650385] [2022-03-17 18:43:03,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:03,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:43:03,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:03,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:43:03,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:43:03,993 INFO L87 Difference]: Start difference. First operand 855 states and 1169 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:43:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:05,804 INFO L93 Difference]: Finished difference Result 987 states and 1396 transitions. [2022-03-17 18:43:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:43:05,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2022-03-17 18:43:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:05,809 INFO L225 Difference]: With dead ends: 987 [2022-03-17 18:43:05,809 INFO L226 Difference]: Without dead ends: 966 [2022-03-17 18:43:05,809 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:43:05,810 INFO L912 BasicCegarLoop]: 706 mSDtfsCounter, 1084 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:05,810 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 2358 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 3508 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:43:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-17 18:43:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 842. [2022-03-17 18:43:05,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3666666666666667) internal successors, (902), 674 states have internal predecessors, (902), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2022-03-17 18:43:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2022-03-17 18:43:05,838 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2022-03-17 18:43:05,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:05,838 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2022-03-17 18:43:05,838 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-03-17 18:43:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2022-03-17 18:43:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-17 18:43:05,840 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:05,840 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:05,840 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:43:05,841 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:05,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:05,841 INFO L85 PathProgramCache]: Analyzing trace with hash -222651470, now seen corresponding path program 1 times [2022-03-17 18:43:05,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:05,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125399457] [2022-03-17 18:43:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:05,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:06,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125399457] [2022-03-17 18:43:06,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125399457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:06,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:06,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:43:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029640045] [2022-03-17 18:43:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:06,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:43:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:43:06,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:43:06,097 INFO L87 Difference]: Start difference. First operand 842 states and 1155 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:08,193 INFO L93 Difference]: Finished difference Result 968 states and 1372 transitions. [2022-03-17 18:43:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:43:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2022-03-17 18:43:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:08,198 INFO L225 Difference]: With dead ends: 968 [2022-03-17 18:43:08,198 INFO L226 Difference]: Without dead ends: 968 [2022-03-17 18:43:08,198 INFO L911 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 [2022-03-17 18:43:08,198 INFO L912 BasicCegarLoop]: 659 mSDtfsCounter, 1967 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:08,199 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 1442 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:43:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-17 18:43:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2022-03-17 18:43:08,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 660 states have (on average 1.3651515151515152) internal successors, (901), 674 states have internal predecessors, (901), 112 states have call successors, (112), 51 states have call predecessors, (112), 69 states have return successors, (141), 124 states have call predecessors, (141), 105 states have call successors, (141) [2022-03-17 18:43:08,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2022-03-17 18:43:08,216 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2022-03-17 18:43:08,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:08,216 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2022-03-17 18:43:08,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:08,216 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2022-03-17 18:43:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 18:43:08,218 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:08,218 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:08,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:43:08,218 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash 179775437, now seen corresponding path program 1 times [2022-03-17 18:43:08,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:08,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037634048] [2022-03-17 18:43:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:08,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:43:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:08,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:08,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037634048] [2022-03-17 18:43:08,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037634048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:08,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:08,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 18:43:08,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356225520] [2022-03-17 18:43:08,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:08,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:43:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:08,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:43:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:43:08,391 INFO L87 Difference]: Start difference. First operand 842 states and 1154 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 18:43:10,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:10,399 INFO L93 Difference]: Finished difference Result 975 states and 1378 transitions. [2022-03-17 18:43:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 18:43:10,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-03-17 18:43:10,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:10,403 INFO L225 Difference]: With dead ends: 975 [2022-03-17 18:43:10,403 INFO L226 Difference]: Without dead ends: 943 [2022-03-17 18:43:10,403 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:43:10,404 INFO L912 BasicCegarLoop]: 659 mSDtfsCounter, 1246 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:10,404 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 1266 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:43:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-03-17 18:43:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2022-03-17 18:43:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3746081504702194) internal successors, (877), 651 states have internal predecessors, (877), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2022-03-17 18:43:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2022-03-17 18:43:10,419 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2022-03-17 18:43:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:10,420 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2022-03-17 18:43:10,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-17 18:43:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2022-03-17 18:43:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-17 18:43:10,422 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:10,422 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:10,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:43:10,422 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:10,422 INFO L85 PathProgramCache]: Analyzing trace with hash 760121073, now seen corresponding path program 1 times [2022-03-17 18:43:10,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:10,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448165747] [2022-03-17 18:43:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:10,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:10,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:10,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:10,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448165747] [2022-03-17 18:43:10,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448165747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:10,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:10,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:43:10,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237864325] [2022-03-17 18:43:10,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:10,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:43:10,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:10,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:43:10,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:43:10,667 INFO L87 Difference]: Start difference. First operand 815 states and 1124 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:12,291 INFO L93 Difference]: Finished difference Result 939 states and 1339 transitions. [2022-03-17 18:43:12,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:43:12,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2022-03-17 18:43:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:12,294 INFO L225 Difference]: With dead ends: 939 [2022-03-17 18:43:12,294 INFO L226 Difference]: Without dead ends: 939 [2022-03-17 18:43:12,295 INFO L911 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 [2022-03-17 18:43:12,295 INFO L912 BasicCegarLoop]: 630 mSDtfsCounter, 2257 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:12,295 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 1183 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-17 18:43:12,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-17 18:43:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2022-03-17 18:43:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 638 states have (on average 1.3730407523510972) internal successors, (876), 651 states have internal predecessors, (876), 109 states have call successors, (109), 49 states have call predecessors, (109), 67 states have return successors, (138), 121 states have call predecessors, (138), 102 states have call successors, (138) [2022-03-17 18:43:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2022-03-17 18:43:12,311 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2022-03-17 18:43:12,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:12,311 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2022-03-17 18:43:12,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 8 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:12,311 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2022-03-17 18:43:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 18:43:12,313 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:12,313 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:12,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:43:12,313 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1504848646, now seen corresponding path program 1 times [2022-03-17 18:43:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:12,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827183691] [2022-03-17 18:43:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:12,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827183691] [2022-03-17 18:43:12,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827183691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:12,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:12,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-17 18:43:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210478945] [2022-03-17 18:43:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:12,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-17 18:43:12,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-17 18:43:12,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:43:12,525 INFO L87 Difference]: Start difference. First operand 815 states and 1123 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:15,217 INFO L93 Difference]: Finished difference Result 963 states and 1369 transitions. [2022-03-17 18:43:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 18:43:15,219 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2022-03-17 18:43:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:15,222 INFO L225 Difference]: With dead ends: 963 [2022-03-17 18:43:15,222 INFO L226 Difference]: Without dead ends: 926 [2022-03-17 18:43:15,223 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:43:15,224 INFO L912 BasicCegarLoop]: 678 mSDtfsCounter, 389 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 5399 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 5563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 5399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:15,224 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 2702 Invalid, 5563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 5399 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:43:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-03-17 18:43:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2022-03-17 18:43:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 644 states have internal predecessors, (856), 107 states have call successors, (107), 49 states have call predecessors, (107), 67 states have return successors, (136), 119 states have call predecessors, (136), 100 states have call successors, (136) [2022-03-17 18:43:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2022-03-17 18:43:15,239 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2022-03-17 18:43:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:15,240 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2022-03-17 18:43:15,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2022-03-17 18:43:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:43:15,244 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:15,244 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:15,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:43:15,244 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -755849646, now seen corresponding path program 1 times [2022-03-17 18:43:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:15,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713791466] [2022-03-17 18:43:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-17 18:43:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:15,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:15,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713791466] [2022-03-17 18:43:15,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713791466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:15,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:15,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-17 18:43:15,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039521451] [2022-03-17 18:43:15,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:15,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-17 18:43:15,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:15,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-17 18:43:15,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:43:15,532 INFO L87 Difference]: Start difference. First operand 806 states and 1099 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:17,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:17,725 INFO L93 Difference]: Finished difference Result 939 states and 1323 transitions. [2022-03-17 18:43:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 18:43:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-03-17 18:43:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:17,728 INFO L225 Difference]: With dead ends: 939 [2022-03-17 18:43:17,728 INFO L226 Difference]: Without dead ends: 924 [2022-03-17 18:43:17,728 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:17,729 INFO L912 BasicCegarLoop]: 660 mSDtfsCounter, 671 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 4609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 4337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:17,729 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 2617 Invalid, 4609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:43:17,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-17 18:43:17,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2022-03-17 18:43:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 643 states have internal predecessors, (854), 106 states have call successors, (106), 49 states have call predecessors, (106), 67 states have return successors, (135), 118 states have call predecessors, (135), 99 states have call successors, (135) [2022-03-17 18:43:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2022-03-17 18:43:17,743 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2022-03-17 18:43:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:17,743 INFO L478 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2022-03-17 18:43:17,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2022-03-17 18:43:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 18:43:17,745 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:17,745 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:17,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:43:17,746 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:17,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash -303401055, now seen corresponding path program 1 times [2022-03-17 18:43:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:17,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484713379] [2022-03-17 18:43:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-17 18:43:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:17,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:17,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484713379] [2022-03-17 18:43:17,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484713379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:17,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:17,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-17 18:43:17,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152614794] [2022-03-17 18:43:17,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:17,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-17 18:43:17,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:17,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-17 18:43:17,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:43:17,958 INFO L87 Difference]: Start difference. First operand 804 states and 1095 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:20,123 INFO L93 Difference]: Finished difference Result 934 states and 1316 transitions. [2022-03-17 18:43:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 18:43:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2022-03-17 18:43:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:20,126 INFO L225 Difference]: With dead ends: 934 [2022-03-17 18:43:20,126 INFO L226 Difference]: Without dead ends: 919 [2022-03-17 18:43:20,126 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:20,127 INFO L912 BasicCegarLoop]: 657 mSDtfsCounter, 669 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 4646 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 4646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:20,127 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 2653 Invalid, 4916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 4646 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:43:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-03-17 18:43:20,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2022-03-17 18:43:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.3556618819776713) internal successors, (850), 640 states have internal predecessors, (850), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2022-03-17 18:43:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2022-03-17 18:43:20,141 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2022-03-17 18:43:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:20,141 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2022-03-17 18:43:20,142 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2022-03-17 18:43:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:43:20,143 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:20,143 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:20,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:43:20,144 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1335002991, now seen corresponding path program 1 times [2022-03-17 18:43:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:20,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355176437] [2022-03-17 18:43:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:20,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:43:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:43:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:20,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:20,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355176437] [2022-03-17 18:43:20,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355176437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:20,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:20,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 18:43:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683940758] [2022-03-17 18:43:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:20,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 18:43:20,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:20,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 18:43:20,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:43:20,317 INFO L87 Difference]: Start difference. First operand 799 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:21,783 INFO L93 Difference]: Finished difference Result 941 states and 1319 transitions. [2022-03-17 18:43:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:43:21,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-03-17 18:43:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:21,786 INFO L225 Difference]: With dead ends: 941 [2022-03-17 18:43:21,786 INFO L226 Difference]: Without dead ends: 941 [2022-03-17 18:43:21,786 INFO L911 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 [2022-03-17 18:43:21,787 INFO L912 BasicCegarLoop]: 678 mSDtfsCounter, 1525 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:21,787 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 1190 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-17 18:43:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-03-17 18:43:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2022-03-17 18:43:21,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 627 states have (on average 1.354066985645933) internal successors, (849), 640 states have internal predecessors, (849), 105 states have call successors, (105), 49 states have call predecessors, (105), 66 states have return successors, (133), 116 states have call predecessors, (133), 98 states have call successors, (133) [2022-03-17 18:43:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2022-03-17 18:43:21,801 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2022-03-17 18:43:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:21,802 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2022-03-17 18:43:21,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2022-03-17 18:43:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-17 18:43:21,803 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:21,804 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:21,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:43:21,804 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1948386428, now seen corresponding path program 1 times [2022-03-17 18:43:21,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:21,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739513256] [2022-03-17 18:43:21,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:21,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-17 18:43:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 18:43:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:21,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739513256] [2022-03-17 18:43:21,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739513256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:21,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:21,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:43:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535062549] [2022-03-17 18:43:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:21,951 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:43:21,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:21,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:43:21,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:43:21,951 INFO L87 Difference]: Start difference. First operand 799 states and 1087 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:23,378 INFO L93 Difference]: Finished difference Result 1023 states and 1421 transitions. [2022-03-17 18:43:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:43:23,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-03-17 18:43:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:23,383 INFO L225 Difference]: With dead ends: 1023 [2022-03-17 18:43:23,383 INFO L226 Difference]: Without dead ends: 1023 [2022-03-17 18:43:23,383 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:43:23,383 INFO L912 BasicCegarLoop]: 663 mSDtfsCounter, 690 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:23,384 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1241 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-17 18:43:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-03-17 18:43:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 840. [2022-03-17 18:43:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 660 states have (on average 1.3424242424242425) internal successors, (886), 672 states have internal predecessors, (886), 106 states have call successors, (106), 53 states have call predecessors, (106), 73 states have return successors, (135), 121 states have call predecessors, (135), 100 states have call successors, (135) [2022-03-17 18:43:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1127 transitions. [2022-03-17 18:43:23,398 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1127 transitions. Word has length 61 [2022-03-17 18:43:23,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:23,399 INFO L478 AbstractCegarLoop]: Abstraction has 840 states and 1127 transitions. [2022-03-17 18:43:23,399 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1127 transitions. [2022-03-17 18:43:23,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 18:43:23,400 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:23,401 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:23,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:43:23,401 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:23,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:23,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1337798748, now seen corresponding path program 1 times [2022-03-17 18:43:23,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:23,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45917513] [2022-03-17 18:43:23,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:23,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-17 18:43:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:23,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:23,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45917513] [2022-03-17 18:43:23,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45917513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:23,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:23,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-17 18:43:23,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044025916] [2022-03-17 18:43:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:23,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-17 18:43:23,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:23,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-17 18:43:23,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:43:23,725 INFO L87 Difference]: Start difference. First operand 840 states and 1127 transitions. Second operand has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:26,583 INFO L93 Difference]: Finished difference Result 1005 states and 1396 transitions. [2022-03-17 18:43:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-17 18:43:26,586 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2022-03-17 18:43:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:26,589 INFO L225 Difference]: With dead ends: 1005 [2022-03-17 18:43:26,589 INFO L226 Difference]: Without dead ends: 984 [2022-03-17 18:43:26,590 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-17 18:43:26,590 INFO L912 BasicCegarLoop]: 655 mSDtfsCounter, 1023 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 6165 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 6595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 6165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:26,590 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 3230 Invalid, 6595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 6165 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:43:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-17 18:43:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 838. [2022-03-17 18:43:26,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 659 states have (on average 1.3414264036418817) internal successors, (884), 671 states have internal predecessors, (884), 105 states have call successors, (105), 53 states have call predecessors, (105), 73 states have return successors, (134), 120 states have call predecessors, (134), 99 states have call successors, (134) [2022-03-17 18:43:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1123 transitions. [2022-03-17 18:43:26,605 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1123 transitions. Word has length 62 [2022-03-17 18:43:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:26,606 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1123 transitions. [2022-03-17 18:43:26,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 10 states have internal predecessors, (46), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1123 transitions. [2022-03-17 18:43:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:43:26,607 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:26,607 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:26,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:43:26,608 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:26,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1214008405, now seen corresponding path program 1 times [2022-03-17 18:43:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:26,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486787504] [2022-03-17 18:43:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486787504] [2022-03-17 18:43:26,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486787504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:26,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:26,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-17 18:43:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847032770] [2022-03-17 18:43:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:26,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-17 18:43:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-17 18:43:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:43:26,898 INFO L87 Difference]: Start difference. First operand 838 states and 1123 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:29,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:29,878 INFO L93 Difference]: Finished difference Result 1003 states and 1392 transitions. [2022-03-17 18:43:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-17 18:43:29,879 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2022-03-17 18:43:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:29,887 INFO L225 Difference]: With dead ends: 1003 [2022-03-17 18:43:29,887 INFO L226 Difference]: Without dead ends: 980 [2022-03-17 18:43:29,888 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-17 18:43:29,888 INFO L912 BasicCegarLoop]: 634 mSDtfsCounter, 1005 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 6736 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 7156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 6736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:29,888 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1009 Valid, 3437 Invalid, 7156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 6736 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:43:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-03-17 18:43:29,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 837. [2022-03-17 18:43:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 658 states have (on average 1.3267477203647415) internal successors, (873), 670 states have internal predecessors, (873), 105 states have call successors, (105), 53 states have call predecessors, (105), 73 states have return successors, (134), 120 states have call predecessors, (134), 99 states have call successors, (134) [2022-03-17 18:43:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1112 transitions. [2022-03-17 18:43:29,902 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1112 transitions. Word has length 59 [2022-03-17 18:43:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:29,902 INFO L478 AbstractCegarLoop]: Abstraction has 837 states and 1112 transitions. [2022-03-17 18:43:29,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1112 transitions. [2022-03-17 18:43:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-17 18:43:29,904 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:29,904 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:29,904 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:43:29,905 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:29,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash -55485367, now seen corresponding path program 1 times [2022-03-17 18:43:29,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:29,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978345419] [2022-03-17 18:43:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:29,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:30,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:30,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978345419] [2022-03-17 18:43:30,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978345419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:30,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:30,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 18:43:30,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615384273] [2022-03-17 18:43:30,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:30,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 18:43:30,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 18:43:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:30,200 INFO L87 Difference]: Start difference. First operand 837 states and 1112 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:32,787 INFO L93 Difference]: Finished difference Result 992 states and 1366 transitions. [2022-03-17 18:43:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-17 18:43:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-03-17 18:43:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:32,790 INFO L225 Difference]: With dead ends: 992 [2022-03-17 18:43:32,790 INFO L226 Difference]: Without dead ends: 975 [2022-03-17 18:43:32,791 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-03-17 18:43:32,791 INFO L912 BasicCegarLoop]: 649 mSDtfsCounter, 1249 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 5378 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 5895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 5378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:32,791 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2952 Invalid, 5895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 5378 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:43:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-03-17 18:43:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 834. [2022-03-17 18:43:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 656 states have (on average 1.326219512195122) internal successors, (870), 668 states have internal predecessors, (870), 104 states have call successors, (104), 53 states have call predecessors, (104), 73 states have return successors, (133), 119 states have call predecessors, (133), 98 states have call successors, (133) [2022-03-17 18:43:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1107 transitions. [2022-03-17 18:43:32,805 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1107 transitions. Word has length 58 [2022-03-17 18:43:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:32,805 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1107 transitions. [2022-03-17 18:43:32,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2022-03-17 18:43:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1107 transitions. [2022-03-17 18:43:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 18:43:32,807 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:32,807 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:32,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:43:32,807 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:32,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash -57775299, now seen corresponding path program 1 times [2022-03-17 18:43:32,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:32,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854040472] [2022-03-17 18:43:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 18:43:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:32,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:32,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854040472] [2022-03-17 18:43:32,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854040472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:32,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:32,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 18:43:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028661525] [2022-03-17 18:43:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:32,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 18:43:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 18:43:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:43:32,995 INFO L87 Difference]: Start difference. First operand 834 states and 1107 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:34,502 INFO L93 Difference]: Finished difference Result 1036 states and 1451 transitions. [2022-03-17 18:43:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:43:34,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-03-17 18:43:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:34,505 INFO L225 Difference]: With dead ends: 1036 [2022-03-17 18:43:34,505 INFO L226 Difference]: Without dead ends: 1036 [2022-03-17 18:43:34,505 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:43:34,505 INFO L912 BasicCegarLoop]: 628 mSDtfsCounter, 1326 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:34,506 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 1630 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-17 18:43:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-03-17 18:43:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 841. [2022-03-17 18:43:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 661 states have (on average 1.3267776096822996) internal successors, (877), 674 states have internal predecessors, (877), 105 states have call successors, (105), 53 states have call predecessors, (105), 74 states have return successors, (140), 120 states have call predecessors, (140), 99 states have call successors, (140) [2022-03-17 18:43:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1122 transitions. [2022-03-17 18:43:34,520 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1122 transitions. Word has length 60 [2022-03-17 18:43:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:34,520 INFO L478 AbstractCegarLoop]: Abstraction has 841 states and 1122 transitions. [2022-03-17 18:43:34,520 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1122 transitions. [2022-03-17 18:43:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 18:43:34,523 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:34,523 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:34,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:43:34,523 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2067879140, now seen corresponding path program 1 times [2022-03-17 18:43:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:34,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787951408] [2022-03-17 18:43:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 18:43:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:34,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787951408] [2022-03-17 18:43:34,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787951408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:34,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:34,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 18:43:34,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904733599] [2022-03-17 18:43:34,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:34,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 18:43:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:34,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 18:43:34,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:34,769 INFO L87 Difference]: Start difference. First operand 841 states and 1122 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:36,680 INFO L93 Difference]: Finished difference Result 1005 states and 1397 transitions. [2022-03-17 18:43:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 18:43:36,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-03-17 18:43:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:36,683 INFO L225 Difference]: With dead ends: 1005 [2022-03-17 18:43:36,683 INFO L226 Difference]: Without dead ends: 983 [2022-03-17 18:43:36,683 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:43:36,684 INFO L912 BasicCegarLoop]: 633 mSDtfsCounter, 1277 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 3767 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 3767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:36,684 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 2654 Invalid, 4292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 3767 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:43:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-03-17 18:43:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 839. [2022-03-17 18:43:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 660 states have (on average 1.3257575757575757) internal successors, (875), 673 states have internal predecessors, (875), 104 states have call successors, (104), 53 states have call predecessors, (104), 74 states have return successors, (139), 119 states have call predecessors, (139), 98 states have call successors, (139) [2022-03-17 18:43:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1118 transitions. [2022-03-17 18:43:36,697 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1118 transitions. Word has length 60 [2022-03-17 18:43:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:36,698 INFO L478 AbstractCegarLoop]: Abstraction has 839 states and 1118 transitions. [2022-03-17 18:43:36,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:36,698 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1118 transitions. [2022-03-17 18:43:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:43:36,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:36,700 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:36,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:43:36,700 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1557615113, now seen corresponding path program 1 times [2022-03-17 18:43:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:36,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61432812] [2022-03-17 18:43:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:36,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 18:43:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:36,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:36,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61432812] [2022-03-17 18:43:36,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61432812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:36,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:36,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 18:43:36,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287558558] [2022-03-17 18:43:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:36,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 18:43:36,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 18:43:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:36,935 INFO L87 Difference]: Start difference. First operand 839 states and 1118 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:39,377 INFO L93 Difference]: Finished difference Result 1004 states and 1391 transitions. [2022-03-17 18:43:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-17 18:43:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2022-03-17 18:43:39,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:39,379 INFO L225 Difference]: With dead ends: 1004 [2022-03-17 18:43:39,380 INFO L226 Difference]: Without dead ends: 968 [2022-03-17 18:43:39,380 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-03-17 18:43:39,380 INFO L912 BasicCegarLoop]: 620 mSDtfsCounter, 660 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 5268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:39,380 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 2776 Invalid, 5268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:43:39,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-17 18:43:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 827. [2022-03-17 18:43:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 651 states have (on average 1.3210445468509984) internal successors, (860), 664 states have internal predecessors, (860), 101 states have call successors, (101), 53 states have call predecessors, (101), 74 states have return successors, (136), 116 states have call predecessors, (136), 95 states have call successors, (136) [2022-03-17 18:43:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1097 transitions. [2022-03-17 18:43:39,394 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1097 transitions. Word has length 59 [2022-03-17 18:43:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:39,394 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1097 transitions. [2022-03-17 18:43:39,394 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1097 transitions. [2022-03-17 18:43:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-17 18:43:39,396 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:39,396 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:39,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:43:39,397 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:39,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:39,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1192878684, now seen corresponding path program 1 times [2022-03-17 18:43:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:39,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127753910] [2022-03-17 18:43:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:43:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:39,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:39,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:39,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127753910] [2022-03-17 18:43:39,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127753910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:39,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:39,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:43:39,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130210420] [2022-03-17 18:43:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:39,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:43:39,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:39,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:43:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:43:39,592 INFO L87 Difference]: Start difference. First operand 827 states and 1097 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:41,282 INFO L93 Difference]: Finished difference Result 984 states and 1386 transitions. [2022-03-17 18:43:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:43:41,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2022-03-17 18:43:41,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:41,285 INFO L225 Difference]: With dead ends: 984 [2022-03-17 18:43:41,285 INFO L226 Difference]: Without dead ends: 982 [2022-03-17 18:43:41,285 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:43:41,285 INFO L912 BasicCegarLoop]: 609 mSDtfsCounter, 350 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:41,285 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1773 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:43:41,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-03-17 18:43:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 831. [2022-03-17 18:43:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 653 states have (on average 1.3200612557427258) internal successors, (862), 668 states have internal predecessors, (862), 101 states have call successors, (101), 53 states have call predecessors, (101), 76 states have return successors, (152), 116 states have call predecessors, (152), 95 states have call successors, (152) [2022-03-17 18:43:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1115 transitions. [2022-03-17 18:43:41,299 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1115 transitions. Word has length 61 [2022-03-17 18:43:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:41,299 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1115 transitions. [2022-03-17 18:43:41,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1115 transitions. [2022-03-17 18:43:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 18:43:41,301 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:41,301 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:41,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:43:41,301 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:41,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:41,302 INFO L85 PathProgramCache]: Analyzing trace with hash 440130742, now seen corresponding path program 1 times [2022-03-17 18:43:41,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:41,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968600211] [2022-03-17 18:43:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:41,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:43:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:41,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:41,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968600211] [2022-03-17 18:43:41,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968600211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:41,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:41,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-17 18:43:41,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009983048] [2022-03-17 18:43:41,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:41,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 18:43:41,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:41,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 18:43:41,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:43:41,495 INFO L87 Difference]: Start difference. First operand 831 states and 1115 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:43,084 INFO L93 Difference]: Finished difference Result 974 states and 1367 transitions. [2022-03-17 18:43:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:43:43,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2022-03-17 18:43:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:43,087 INFO L225 Difference]: With dead ends: 974 [2022-03-17 18:43:43,087 INFO L226 Difference]: Without dead ends: 974 [2022-03-17 18:43:43,087 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:43:43,087 INFO L912 BasicCegarLoop]: 607 mSDtfsCounter, 349 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:43,088 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1511 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:43:43,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-03-17 18:43:43,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 831. [2022-03-17 18:43:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 653 states have (on average 1.318529862174579) internal successors, (861), 668 states have internal predecessors, (861), 101 states have call successors, (101), 53 states have call predecessors, (101), 76 states have return successors, (152), 116 states have call predecessors, (152), 95 states have call successors, (152) [2022-03-17 18:43:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1114 transitions. [2022-03-17 18:43:43,101 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1114 transitions. Word has length 60 [2022-03-17 18:43:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:43,101 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1114 transitions. [2022-03-17 18:43:43,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1114 transitions. [2022-03-17 18:43:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 18:43:43,103 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:43,103 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:43,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:43:43,103 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:43,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:43,103 INFO L85 PathProgramCache]: Analyzing trace with hash 185394197, now seen corresponding path program 1 times [2022-03-17 18:43:43,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:43,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499919108] [2022-03-17 18:43:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:43,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:43:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:43,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:43,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499919108] [2022-03-17 18:43:43,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499919108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:43,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:43,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 18:43:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610092057] [2022-03-17 18:43:43,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:43,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 18:43:43,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:43,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 18:43:43,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:43:43,364 INFO L87 Difference]: Start difference. First operand 831 states and 1114 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:45,418 INFO L93 Difference]: Finished difference Result 1010 states and 1414 transitions. [2022-03-17 18:43:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-17 18:43:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2022-03-17 18:43:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:45,421 INFO L225 Difference]: With dead ends: 1010 [2022-03-17 18:43:45,421 INFO L226 Difference]: Without dead ends: 961 [2022-03-17 18:43:45,421 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-03-17 18:43:45,421 INFO L912 BasicCegarLoop]: 608 mSDtfsCounter, 1261 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:45,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2520 Invalid, 4591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 4078 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:43:45,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-03-17 18:43:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 823. [2022-03-17 18:43:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 647 states have (on average 1.3137557959814528) internal successors, (850), 662 states have internal predecessors, (850), 99 states have call successors, (99), 53 states have call predecessors, (99), 76 states have return successors, (150), 114 states have call predecessors, (150), 93 states have call successors, (150) [2022-03-17 18:43:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1099 transitions. [2022-03-17 18:43:45,435 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1099 transitions. Word has length 60 [2022-03-17 18:43:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:45,435 INFO L478 AbstractCegarLoop]: Abstraction has 823 states and 1099 transitions. [2022-03-17 18:43:45,435 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-03-17 18:43:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1099 transitions. [2022-03-17 18:43:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:43:45,437 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:45,437 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:45,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:43:45,437 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1158774888, now seen corresponding path program 1 times [2022-03-17 18:43:45,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:45,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996130369] [2022-03-17 18:43:45,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:45,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:43:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:45,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:45,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996130369] [2022-03-17 18:43:45,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996130369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:45,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:45,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-17 18:43:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307425306] [2022-03-17 18:43:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:45,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-17 18:43:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-17 18:43:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:43:45,721 INFO L87 Difference]: Start difference. First operand 823 states and 1099 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:43:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:47,998 INFO L93 Difference]: Finished difference Result 975 states and 1357 transitions. [2022-03-17 18:43:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 18:43:47,998 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2022-03-17 18:43:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:48,000 INFO L225 Difference]: With dead ends: 975 [2022-03-17 18:43:48,000 INFO L226 Difference]: Without dead ends: 956 [2022-03-17 18:43:48,001 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-03-17 18:43:48,001 INFO L912 BasicCegarLoop]: 597 mSDtfsCounter, 1168 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 5487 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 5966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 5487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:48,001 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 3188 Invalid, 5966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 5487 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:43:48,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-03-17 18:43:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 818. [2022-03-17 18:43:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 644 states have (on average 1.313664596273292) internal successors, (846), 659 states have internal predecessors, (846), 98 states have call successors, (98), 53 states have call predecessors, (98), 75 states have return successors, (148), 112 states have call predecessors, (148), 92 states have call successors, (148) [2022-03-17 18:43:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1092 transitions. [2022-03-17 18:43:48,014 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1092 transitions. Word has length 63 [2022-03-17 18:43:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:48,014 INFO L478 AbstractCegarLoop]: Abstraction has 818 states and 1092 transitions. [2022-03-17 18:43:48,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:43:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1092 transitions. [2022-03-17 18:43:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 18:43:48,016 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:48,016 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:48,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:43:48,016 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1342281155, now seen corresponding path program 1 times [2022-03-17 18:43:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:48,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481336579] [2022-03-17 18:43:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:48,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:48,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481336579] [2022-03-17 18:43:48,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481336579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:48,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:48,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-17 18:43:48,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541358334] [2022-03-17 18:43:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:48,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-17 18:43:48,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:48,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-17 18:43:48,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:43:48,285 INFO L87 Difference]: Start difference. First operand 818 states and 1092 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:43:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:50,592 INFO L93 Difference]: Finished difference Result 970 states and 1350 transitions. [2022-03-17 18:43:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 18:43:50,592 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-03-17 18:43:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:50,594 INFO L225 Difference]: With dead ends: 970 [2022-03-17 18:43:50,594 INFO L226 Difference]: Without dead ends: 951 [2022-03-17 18:43:50,594 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:43:50,594 INFO L912 BasicCegarLoop]: 593 mSDtfsCounter, 584 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 5548 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 5792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 5548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:50,595 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 3086 Invalid, 5792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 5548 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:43:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-03-17 18:43:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 813. [2022-03-17 18:43:50,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 641 states have (on average 1.313572542901716) internal successors, (842), 656 states have internal predecessors, (842), 97 states have call successors, (97), 53 states have call predecessors, (97), 74 states have return successors, (146), 110 states have call predecessors, (146), 91 states have call successors, (146) [2022-03-17 18:43:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1085 transitions. [2022-03-17 18:43:50,604 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1085 transitions. Word has length 62 [2022-03-17 18:43:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:50,604 INFO L478 AbstractCegarLoop]: Abstraction has 813 states and 1085 transitions. [2022-03-17 18:43:50,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:43:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1085 transitions. [2022-03-17 18:43:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:43:50,606 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:50,606 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:50,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:43:50,606 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:50,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:50,606 INFO L85 PathProgramCache]: Analyzing trace with hash 739520085, now seen corresponding path program 1 times [2022-03-17 18:43:50,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:50,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942639347] [2022-03-17 18:43:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 18:43:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:50,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:50,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:50,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942639347] [2022-03-17 18:43:50,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942639347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:50,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:50,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-17 18:43:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142422362] [2022-03-17 18:43:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:50,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-17 18:43:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-17 18:43:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:43:50,942 INFO L87 Difference]: Start difference. First operand 813 states and 1085 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:53,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:53,577 INFO L93 Difference]: Finished difference Result 970 states and 1348 transitions. [2022-03-17 18:43:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-17 18:43:53,577 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2022-03-17 18:43:53,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:53,579 INFO L225 Difference]: With dead ends: 970 [2022-03-17 18:43:53,579 INFO L226 Difference]: Without dead ends: 949 [2022-03-17 18:43:53,579 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-03-17 18:43:53,580 INFO L912 BasicCegarLoop]: 563 mSDtfsCounter, 1181 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 5554 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 6038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 5554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:53,580 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 2960 Invalid, 6038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 5554 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:43:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-17 18:43:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 811. [2022-03-17 18:43:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 640 states have (on average 1.3125) internal successors, (840), 655 states have internal predecessors, (840), 96 states have call successors, (96), 53 states have call predecessors, (96), 74 states have return successors, (145), 109 states have call predecessors, (145), 90 states have call successors, (145) [2022-03-17 18:43:53,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1081 transitions. [2022-03-17 18:43:53,591 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1081 transitions. Word has length 63 [2022-03-17 18:43:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:53,604 INFO L478 AbstractCegarLoop]: Abstraction has 811 states and 1081 transitions. [2022-03-17 18:43:53,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:43:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1081 transitions. [2022-03-17 18:43:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 18:43:53,606 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:53,606 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:53,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:43:53,606 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:53,607 INFO L85 PathProgramCache]: Analyzing trace with hash -620638821, now seen corresponding path program 1 times [2022-03-17 18:43:53,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:53,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710552801] [2022-03-17 18:43:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:53,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 18:43:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:53,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:53,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710552801] [2022-03-17 18:43:53,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710552801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:53,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:53,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 18:43:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002437374] [2022-03-17 18:43:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:53,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 18:43:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 18:43:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:43:53,759 INFO L87 Difference]: Start difference. First operand 811 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:54,605 INFO L93 Difference]: Finished difference Result 814 states and 1084 transitions. [2022-03-17 18:43:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:43:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2022-03-17 18:43:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:54,607 INFO L225 Difference]: With dead ends: 814 [2022-03-17 18:43:54,607 INFO L226 Difference]: Without dead ends: 810 [2022-03-17 18:43:54,608 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:43:54,608 INFO L912 BasicCegarLoop]: 523 mSDtfsCounter, 1153 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:54,608 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 1063 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 18:43:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-03-17 18:43:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 703. [2022-03-17 18:43:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 555 states have (on average 1.3045045045045045) internal successors, (724), 569 states have internal predecessors, (724), 84 states have call successors, (84), 47 states have call predecessors, (84), 63 states have return successors, (104), 93 states have call predecessors, (104), 78 states have call successors, (104) [2022-03-17 18:43:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 912 transitions. [2022-03-17 18:43:54,617 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 912 transitions. Word has length 63 [2022-03-17 18:43:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:54,618 INFO L478 AbstractCegarLoop]: Abstraction has 703 states and 912 transitions. [2022-03-17 18:43:54,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:43:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 912 transitions. [2022-03-17 18:43:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 18:43:54,619 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:54,619 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:54,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:43:54,620 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -306718972, now seen corresponding path program 1 times [2022-03-17 18:43:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:54,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309567272] [2022-03-17 18:43:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-17 18:43:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 18:43:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-17 18:43:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:54,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:54,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309567272] [2022-03-17 18:43:54,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309567272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:54,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:54,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-17 18:43:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139303102] [2022-03-17 18:43:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:54,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:43:54,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:54,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:43:54,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:43:54,782 INFO L87 Difference]: Start difference. First operand 703 states and 912 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-03-17 18:43:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:55,749 INFO L93 Difference]: Finished difference Result 775 states and 1026 transitions. [2022-03-17 18:43:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:43:55,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2022-03-17 18:43:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:55,752 INFO L225 Difference]: With dead ends: 775 [2022-03-17 18:43:55,752 INFO L226 Difference]: Without dead ends: 775 [2022-03-17 18:43:55,752 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:43:55,753 INFO L912 BasicCegarLoop]: 485 mSDtfsCounter, 685 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:55,753 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 867 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:43:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-03-17 18:43:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 703. [2022-03-17 18:43:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 555 states have (on average 1.300900900900901) internal successors, (722), 569 states have internal predecessors, (722), 84 states have call successors, (84), 47 states have call predecessors, (84), 63 states have return successors, (104), 93 states have call predecessors, (104), 78 states have call successors, (104) [2022-03-17 18:43:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 910 transitions. [2022-03-17 18:43:55,761 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 910 transitions. Word has length 66 [2022-03-17 18:43:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:55,761 INFO L478 AbstractCegarLoop]: Abstraction has 703 states and 910 transitions. [2022-03-17 18:43:55,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-03-17 18:43:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 910 transitions. [2022-03-17 18:43:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:43:55,763 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:55,763 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:55,763 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:43:55,763 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 526937182, now seen corresponding path program 1 times [2022-03-17 18:43:55,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:55,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567322046] [2022-03-17 18:43:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:55,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:43:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:56,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:56,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567322046] [2022-03-17 18:43:56,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567322046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:56,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:56,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-17 18:43:56,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317488681] [2022-03-17 18:43:56,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:56,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 18:43:56,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:56,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 18:43:56,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:43:56,091 INFO L87 Difference]: Start difference. First operand 703 states and 910 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:43:58,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:43:58,421 INFO L93 Difference]: Finished difference Result 796 states and 1048 transitions. [2022-03-17 18:43:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 18:43:58,421 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2022-03-17 18:43:58,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:43:58,423 INFO L225 Difference]: With dead ends: 796 [2022-03-17 18:43:58,423 INFO L226 Difference]: Without dead ends: 774 [2022-03-17 18:43:58,424 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:43:58,424 INFO L912 BasicCegarLoop]: 519 mSDtfsCounter, 1436 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 5164 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 5719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 5164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:43:58,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2866 Invalid, 5719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 5164 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:43:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-03-17 18:43:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 701. [2022-03-17 18:43:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 554 states have (on average 1.2996389891696751) internal successors, (720), 568 states have internal predecessors, (720), 83 states have call successors, (83), 47 states have call predecessors, (83), 63 states have return successors, (103), 92 states have call predecessors, (103), 77 states have call successors, (103) [2022-03-17 18:43:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 906 transitions. [2022-03-17 18:43:58,433 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 906 transitions. Word has length 67 [2022-03-17 18:43:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:43:58,433 INFO L478 AbstractCegarLoop]: Abstraction has 701 states and 906 transitions. [2022-03-17 18:43:58,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:43:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 906 transitions. [2022-03-17 18:43:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 18:43:58,435 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:43:58,435 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:43:58,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:43:58,435 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:43:58,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:43:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash 459314479, now seen corresponding path program 1 times [2022-03-17 18:43:58,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:43:58,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269753226] [2022-03-17 18:43:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:43:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:43:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:43:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:43:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:43:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:43:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:43:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:43:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:43:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:43:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:43:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:43:58,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269753226] [2022-03-17 18:43:58,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269753226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:43:58,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:43:58,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-17 18:43:58,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409593126] [2022-03-17 18:43:58,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:43:58,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 18:43:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:43:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 18:43:58,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:43:58,754 INFO L87 Difference]: Start difference. First operand 701 states and 906 transitions. Second operand has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:01,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:01,234 INFO L93 Difference]: Finished difference Result 791 states and 1039 transitions. [2022-03-17 18:44:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 18:44:01,234 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 66 [2022-03-17 18:44:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:01,236 INFO L225 Difference]: With dead ends: 791 [2022-03-17 18:44:01,236 INFO L226 Difference]: Without dead ends: 769 [2022-03-17 18:44:01,236 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:44:01,237 INFO L912 BasicCegarLoop]: 497 mSDtfsCounter, 344 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 5202 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 5329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 5202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:01,237 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 2486 Invalid, 5329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 5202 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:44:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-03-17 18:44:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 699. [2022-03-17 18:44:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 553 states have (on average 1.298372513562387) internal successors, (718), 567 states have internal predecessors, (718), 82 states have call successors, (82), 47 states have call predecessors, (82), 63 states have return successors, (102), 91 states have call predecessors, (102), 76 states have call successors, (102) [2022-03-17 18:44:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 902 transitions. [2022-03-17 18:44:01,243 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 902 transitions. Word has length 66 [2022-03-17 18:44:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:01,243 INFO L478 AbstractCegarLoop]: Abstraction has 699 states and 902 transitions. [2022-03-17 18:44:01,244 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:01,244 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 902 transitions. [2022-03-17 18:44:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 18:44:01,245 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:01,245 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:01,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:44:01,245 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:01,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1659747958, now seen corresponding path program 1 times [2022-03-17 18:44:01,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:01,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195325559] [2022-03-17 18:44:01,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:01,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:44:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-17 18:44:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:01,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:01,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195325559] [2022-03-17 18:44:01,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195325559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:01,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:01,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:01,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977697370] [2022-03-17 18:44:01,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:01,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:01,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:01,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:01,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:01,450 INFO L87 Difference]: Start difference. First operand 699 states and 902 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:44:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:02,586 INFO L93 Difference]: Finished difference Result 800 states and 1053 transitions. [2022-03-17 18:44:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-17 18:44:02,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2022-03-17 18:44:02,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:02,588 INFO L225 Difference]: With dead ends: 800 [2022-03-17 18:44:02,589 INFO L226 Difference]: Without dead ends: 800 [2022-03-17 18:44:02,589 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:02,589 INFO L912 BasicCegarLoop]: 498 mSDtfsCounter, 780 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:02,589 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 1016 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:44:02,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-03-17 18:44:02,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 705. [2022-03-17 18:44:02,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 558 states have (on average 1.2974910394265233) internal successors, (724), 572 states have internal predecessors, (724), 83 states have call successors, (83), 47 states have call predecessors, (83), 63 states have return successors, (103), 92 states have call predecessors, (103), 77 states have call successors, (103) [2022-03-17 18:44:02,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 910 transitions. [2022-03-17 18:44:02,599 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 910 transitions. Word has length 65 [2022-03-17 18:44:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:02,599 INFO L478 AbstractCegarLoop]: Abstraction has 705 states and 910 transitions. [2022-03-17 18:44:02,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-03-17 18:44:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 910 transitions. [2022-03-17 18:44:02,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 18:44:02,600 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:02,600 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:02,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:44:02,601 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:02,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:02,601 INFO L85 PathProgramCache]: Analyzing trace with hash -697612646, now seen corresponding path program 1 times [2022-03-17 18:44:02,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:02,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786181151] [2022-03-17 18:44:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:02,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-17 18:44:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:02,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786181151] [2022-03-17 18:44:02,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786181151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:02,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:02,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:02,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842807694] [2022-03-17 18:44:02,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:02,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:02,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:02,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:02,808 INFO L87 Difference]: Start difference. First operand 705 states and 910 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:04,009 INFO L93 Difference]: Finished difference Result 777 states and 1020 transitions. [2022-03-17 18:44:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:44:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-03-17 18:44:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:04,011 INFO L225 Difference]: With dead ends: 777 [2022-03-17 18:44:04,011 INFO L226 Difference]: Without dead ends: 777 [2022-03-17 18:44:04,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:44:04,012 INFO L912 BasicCegarLoop]: 504 mSDtfsCounter, 615 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:04,012 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 1222 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 18:44:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-03-17 18:44:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 705. [2022-03-17 18:44:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 558 states have (on average 1.2939068100358424) internal successors, (722), 572 states have internal predecessors, (722), 83 states have call successors, (83), 47 states have call predecessors, (83), 63 states have return successors, (103), 92 states have call predecessors, (103), 77 states have call successors, (103) [2022-03-17 18:44:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 908 transitions. [2022-03-17 18:44:04,021 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 908 transitions. Word has length 66 [2022-03-17 18:44:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:04,021 INFO L478 AbstractCegarLoop]: Abstraction has 705 states and 908 transitions. [2022-03-17 18:44:04,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 908 transitions. [2022-03-17 18:44:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 18:44:04,023 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:04,023 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:04,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:44:04,023 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash -346812709, now seen corresponding path program 1 times [2022-03-17 18:44:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:04,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637669638] [2022-03-17 18:44:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-03-17 18:44:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:04,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:04,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637669638] [2022-03-17 18:44:04,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637669638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:04,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:04,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-17 18:44:04,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377005597] [2022-03-17 18:44:04,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:04,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-17 18:44:04,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-17 18:44:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-17 18:44:04,265 INFO L87 Difference]: Start difference. First operand 705 states and 908 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:06,112 INFO L93 Difference]: Finished difference Result 799 states and 1045 transitions. [2022-03-17 18:44:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 18:44:06,112 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-03-17 18:44:06,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:06,114 INFO L225 Difference]: With dead ends: 799 [2022-03-17 18:44:06,114 INFO L226 Difference]: Without dead ends: 725 [2022-03-17 18:44:06,115 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:44:06,115 INFO L912 BasicCegarLoop]: 507 mSDtfsCounter, 1192 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 3753 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 4200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:06,115 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 2003 Invalid, 4200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 3753 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:44:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-03-17 18:44:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 668. [2022-03-17 18:44:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 528 states have (on average 1.2803030303030303) internal successors, (676), 542 states have internal predecessors, (676), 76 states have call successors, (76), 47 states have call predecessors, (76), 63 states have return successors, (95), 85 states have call predecessors, (95), 70 states have call successors, (95) [2022-03-17 18:44:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 847 transitions. [2022-03-17 18:44:06,124 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 847 transitions. Word has length 66 [2022-03-17 18:44:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:06,124 INFO L478 AbstractCegarLoop]: Abstraction has 668 states and 847 transitions. [2022-03-17 18:44:06,124 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 7 states have internal predecessors, (50), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 847 transitions. [2022-03-17 18:44:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:44:06,126 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:06,126 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:06,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:44:06,126 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 255041077, now seen corresponding path program 1 times [2022-03-17 18:44:06,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:06,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510209582] [2022-03-17 18:44:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:06,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:06,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:06,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510209582] [2022-03-17 18:44:06,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510209582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:06,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:06,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 18:44:06,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700753217] [2022-03-17 18:44:06,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:06,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 18:44:06,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 18:44:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:44:06,299 INFO L87 Difference]: Start difference. First operand 668 states and 847 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:07,735 INFO L93 Difference]: Finished difference Result 842 states and 1081 transitions. [2022-03-17 18:44:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:44:07,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2022-03-17 18:44:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:07,738 INFO L225 Difference]: With dead ends: 842 [2022-03-17 18:44:07,738 INFO L226 Difference]: Without dead ends: 842 [2022-03-17 18:44:07,738 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:07,738 INFO L912 BasicCegarLoop]: 476 mSDtfsCounter, 964 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:07,738 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 916 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-17 18:44:07,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-03-17 18:44:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 714. [2022-03-17 18:44:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 564 states have (on average 1.2730496453900708) internal successors, (718), 580 states have internal predecessors, (718), 78 states have call successors, (78), 49 states have call predecessors, (78), 71 states have return successors, (103), 93 states have call predecessors, (103), 72 states have call successors, (103) [2022-03-17 18:44:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 899 transitions. [2022-03-17 18:44:07,749 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 899 transitions. Word has length 67 [2022-03-17 18:44:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:07,749 INFO L478 AbstractCegarLoop]: Abstraction has 714 states and 899 transitions. [2022-03-17 18:44:07,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 899 transitions. [2022-03-17 18:44:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:44:07,751 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:07,751 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:07,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:44:07,751 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2058592464, now seen corresponding path program 1 times [2022-03-17 18:44:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:07,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473822934] [2022-03-17 18:44:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:07,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-03-17 18:44:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:07,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473822934] [2022-03-17 18:44:07,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473822934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:07,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:07,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977195774] [2022-03-17 18:44:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:07,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:07,937 INFO L87 Difference]: Start difference. First operand 714 states and 899 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:08,975 INFO L93 Difference]: Finished difference Result 765 states and 978 transitions. [2022-03-17 18:44:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:44:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-03-17 18:44:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:08,977 INFO L225 Difference]: With dead ends: 765 [2022-03-17 18:44:08,977 INFO L226 Difference]: Without dead ends: 760 [2022-03-17 18:44:08,977 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:44:08,977 INFO L912 BasicCegarLoop]: 451 mSDtfsCounter, 1233 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:08,977 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 1080 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:44:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-17 18:44:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 709. [2022-03-17 18:44:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 560 states have (on average 1.2732142857142856) internal successors, (713), 576 states have internal predecessors, (713), 77 states have call successors, (77), 49 states have call predecessors, (77), 71 states have return successors, (102), 92 states have call predecessors, (102), 71 states have call successors, (102) [2022-03-17 18:44:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 892 transitions. [2022-03-17 18:44:08,985 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 892 transitions. Word has length 67 [2022-03-17 18:44:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:08,985 INFO L478 AbstractCegarLoop]: Abstraction has 709 states and 892 transitions. [2022-03-17 18:44:08,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 892 transitions. [2022-03-17 18:44:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 18:44:08,986 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:08,986 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:08,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:44:08,987 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:08,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -238065346, now seen corresponding path program 1 times [2022-03-17 18:44:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:08,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112038499] [2022-03-17 18:44:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:09,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:09,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112038499] [2022-03-17 18:44:09,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112038499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:09,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:09,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-17 18:44:09,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348598294] [2022-03-17 18:44:09,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:09,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-17 18:44:09,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:09,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-17 18:44:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:44:09,158 INFO L87 Difference]: Start difference. First operand 709 states and 892 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:10,142 INFO L93 Difference]: Finished difference Result 763 states and 966 transitions. [2022-03-17 18:44:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:44:10,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 3 states have internal predecessors, (52), 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 68 [2022-03-17 18:44:10,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:10,144 INFO L225 Difference]: With dead ends: 763 [2022-03-17 18:44:10,144 INFO L226 Difference]: Without dead ends: 746 [2022-03-17 18:44:10,144 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:10,145 INFO L912 BasicCegarLoop]: 463 mSDtfsCounter, 1100 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:10,145 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 817 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:44:10,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-03-17 18:44:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 690. [2022-03-17 18:44:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 546 states have (on average 1.2637362637362637) internal successors, (690), 561 states have internal predecessors, (690), 76 states have call successors, (76), 48 states have call predecessors, (76), 67 states have return successors, (98), 88 states have call predecessors, (98), 70 states have call successors, (98) [2022-03-17 18:44:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 864 transitions. [2022-03-17 18:44:10,153 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 864 transitions. Word has length 68 [2022-03-17 18:44:10,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:10,154 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 864 transitions. [2022-03-17 18:44:10,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (9), 9 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 864 transitions. [2022-03-17 18:44:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 18:44:10,155 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:10,155 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:10,155 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:44:10,155 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:10,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:10,156 INFO L85 PathProgramCache]: Analyzing trace with hash -653091009, now seen corresponding path program 1 times [2022-03-17 18:44:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187446059] [2022-03-17 18:44:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:10,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187446059] [2022-03-17 18:44:10,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187446059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:10,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:10,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638577706] [2022-03-17 18:44:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:10,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:10,364 INFO L87 Difference]: Start difference. First operand 690 states and 864 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:11,989 INFO L93 Difference]: Finished difference Result 816 states and 1041 transitions. [2022-03-17 18:44:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-17 18:44:11,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-03-17 18:44:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:11,991 INFO L225 Difference]: With dead ends: 816 [2022-03-17 18:44:11,991 INFO L226 Difference]: Without dead ends: 816 [2022-03-17 18:44:11,991 INFO L911 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 [2022-03-17 18:44:11,992 INFO L912 BasicCegarLoop]: 472 mSDtfsCounter, 1734 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:11,992 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1741 Valid, 1014 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-17 18:44:11,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-03-17 18:44:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 690. [2022-03-17 18:44:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 546 states have (on average 1.26007326007326) internal successors, (688), 561 states have internal predecessors, (688), 76 states have call successors, (76), 48 states have call predecessors, (76), 67 states have return successors, (98), 88 states have call predecessors, (98), 70 states have call successors, (98) [2022-03-17 18:44:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 862 transitions. [2022-03-17 18:44:12,000 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 862 transitions. Word has length 68 [2022-03-17 18:44:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:12,000 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 862 transitions. [2022-03-17 18:44:12,000 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 862 transitions. [2022-03-17 18:44:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 18:44:12,002 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:12,002 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:12,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:44:12,002 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:12,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1034853120, now seen corresponding path program 1 times [2022-03-17 18:44:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:12,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253530896] [2022-03-17 18:44:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:12,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:44:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-03-17 18:44:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:12,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:12,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253530896] [2022-03-17 18:44:12,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253530896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:12,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:12,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-17 18:44:12,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192598140] [2022-03-17 18:44:12,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:12,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 18:44:12,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:12,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 18:44:12,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:12,316 INFO L87 Difference]: Start difference. First operand 690 states and 862 transitions. Second operand has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-17 18:44:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:14,371 INFO L93 Difference]: Finished difference Result 778 states and 990 transitions. [2022-03-17 18:44:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 18:44:14,372 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-03-17 18:44:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:14,374 INFO L225 Difference]: With dead ends: 778 [2022-03-17 18:44:14,374 INFO L226 Difference]: Without dead ends: 756 [2022-03-17 18:44:14,374 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:44:14,374 INFO L912 BasicCegarLoop]: 459 mSDtfsCounter, 566 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 4524 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 4734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 4524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:14,375 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 2641 Invalid, 4734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 4524 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:44:14,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-03-17 18:44:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 688. [2022-03-17 18:44:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 545 states have (on average 1.2587155963302752) internal successors, (686), 560 states have internal predecessors, (686), 75 states have call successors, (75), 48 states have call predecessors, (75), 67 states have return successors, (97), 87 states have call predecessors, (97), 69 states have call successors, (97) [2022-03-17 18:44:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 858 transitions. [2022-03-17 18:44:14,383 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 858 transitions. Word has length 74 [2022-03-17 18:44:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:14,383 INFO L478 AbstractCegarLoop]: Abstraction has 688 states and 858 transitions. [2022-03-17 18:44:14,383 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 10 states have internal predecessors, (54), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-17 18:44:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 858 transitions. [2022-03-17 18:44:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 18:44:14,385 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:14,385 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:14,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:44:14,385 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:14,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -8057471, now seen corresponding path program 1 times [2022-03-17 18:44:14,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:14,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444366397] [2022-03-17 18:44:14,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:14,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 18:44:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-03-17 18:44:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:14,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:14,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444366397] [2022-03-17 18:44:14,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444366397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:14,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:14,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-17 18:44:14,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219934981] [2022-03-17 18:44:14,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:14,740 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-17 18:44:14,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:14,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-17 18:44:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-03-17 18:44:14,741 INFO L87 Difference]: Start difference. First operand 688 states and 858 transitions. Second operand has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:17,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:17,207 INFO L93 Difference]: Finished difference Result 759 states and 958 transitions. [2022-03-17 18:44:17,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-17 18:44:17,208 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2022-03-17 18:44:17,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:17,211 INFO L225 Difference]: With dead ends: 759 [2022-03-17 18:44:17,211 INFO L226 Difference]: Without dead ends: 735 [2022-03-17 18:44:17,211 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2022-03-17 18:44:17,213 INFO L912 BasicCegarLoop]: 450 mSDtfsCounter, 767 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 5469 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 5754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 5469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:17,213 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 3004 Invalid, 5754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 5469 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:44:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-03-17 18:44:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 685. [2022-03-17 18:44:17,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 543 states have (on average 1.2578268876611418) internal successors, (683), 558 states have internal predecessors, (683), 74 states have call successors, (74), 48 states have call predecessors, (74), 67 states have return successors, (96), 86 states have call predecessors, (96), 68 states have call successors, (96) [2022-03-17 18:44:17,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 853 transitions. [2022-03-17 18:44:17,222 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 853 transitions. Word has length 70 [2022-03-17 18:44:17,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:17,223 INFO L478 AbstractCegarLoop]: Abstraction has 685 states and 853 transitions. [2022-03-17 18:44:17,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (10), 10 states have call predecessors, (10), 5 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:17,223 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 853 transitions. [2022-03-17 18:44:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-03-17 18:44:17,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:17,225 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:17,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:44:17,225 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:17,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:17,225 INFO L85 PathProgramCache]: Analyzing trace with hash 226042889, now seen corresponding path program 1 times [2022-03-17 18:44:17,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:17,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030653128] [2022-03-17 18:44:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:17,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 18:44:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:17,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:17,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030653128] [2022-03-17 18:44:17,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030653128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:17,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:17,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-17 18:44:17,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900731375] [2022-03-17 18:44:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:17,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-17 18:44:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-17 18:44:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:44:17,596 INFO L87 Difference]: Start difference. First operand 685 states and 853 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:19,391 INFO L93 Difference]: Finished difference Result 752 states and 948 transitions. [2022-03-17 18:44:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 18:44:19,392 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2022-03-17 18:44:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:19,393 INFO L225 Difference]: With dead ends: 752 [2022-03-17 18:44:19,393 INFO L226 Difference]: Without dead ends: 733 [2022-03-17 18:44:19,394 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:19,394 INFO L912 BasicCegarLoop]: 450 mSDtfsCounter, 465 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 4372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:19,394 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2376 Invalid, 4372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 18:44:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-03-17 18:44:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 683. [2022-03-17 18:44:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 542 states have (on average 1.2564575645756457) internal successors, (681), 557 states have internal predecessors, (681), 73 states have call successors, (73), 48 states have call predecessors, (73), 67 states have return successors, (95), 85 states have call predecessors, (95), 67 states have call successors, (95) [2022-03-17 18:44:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 849 transitions. [2022-03-17 18:44:19,401 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 849 transitions. Word has length 72 [2022-03-17 18:44:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:19,401 INFO L478 AbstractCegarLoop]: Abstraction has 683 states and 849 transitions. [2022-03-17 18:44:19,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 849 transitions. [2022-03-17 18:44:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:44:19,402 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:19,403 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:19,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 18:44:19,403 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1536662915, now seen corresponding path program 1 times [2022-03-17 18:44:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:19,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786862650] [2022-03-17 18:44:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:44:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:19,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:19,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786862650] [2022-03-17 18:44:19,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786862650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:19,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:19,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-17 18:44:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128513833] [2022-03-17 18:44:19,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:19,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-17 18:44:19,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:19,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-17 18:44:19,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:44:19,769 INFO L87 Difference]: Start difference. First operand 683 states and 849 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:21,870 INFO L93 Difference]: Finished difference Result 747 states and 941 transitions. [2022-03-17 18:44:21,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-17 18:44:21,871 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-03-17 18:44:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:21,872 INFO L225 Difference]: With dead ends: 747 [2022-03-17 18:44:21,872 INFO L226 Difference]: Without dead ends: 719 [2022-03-17 18:44:21,872 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:21,872 INFO L912 BasicCegarLoop]: 440 mSDtfsCounter, 235 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 4890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:21,872 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2374 Invalid, 4890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:44:21,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-03-17 18:44:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 671. [2022-03-17 18:44:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 533 states have (on average 1.2570356472795496) internal successors, (670), 548 states have internal predecessors, (670), 71 states have call successors, (71), 48 states have call predecessors, (71), 66 states have return successors, (92), 82 states have call predecessors, (92), 65 states have call successors, (92) [2022-03-17 18:44:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 833 transitions. [2022-03-17 18:44:21,880 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 833 transitions. Word has length 69 [2022-03-17 18:44:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:21,880 INFO L478 AbstractCegarLoop]: Abstraction has 671 states and 833 transitions. [2022-03-17 18:44:21,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 833 transitions. [2022-03-17 18:44:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:44:21,881 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:21,881 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:21,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 18:44:21,882 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:21,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:21,882 INFO L85 PathProgramCache]: Analyzing trace with hash 300413188, now seen corresponding path program 1 times [2022-03-17 18:44:21,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:21,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211614546] [2022-03-17 18:44:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:21,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:22,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:22,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:22,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211614546] [2022-03-17 18:44:22,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211614546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:22,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:22,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:22,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674273657] [2022-03-17 18:44:22,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:22,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:22,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:22,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:22,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:22,082 INFO L87 Difference]: Start difference. First operand 671 states and 833 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:23,502 INFO L93 Difference]: Finished difference Result 794 states and 1003 transitions. [2022-03-17 18:44:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-17 18:44:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-03-17 18:44:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:23,504 INFO L225 Difference]: With dead ends: 794 [2022-03-17 18:44:23,504 INFO L226 Difference]: Without dead ends: 794 [2022-03-17 18:44:23,504 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-03-17 18:44:23,508 INFO L912 BasicCegarLoop]: 430 mSDtfsCounter, 1917 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:23,508 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1924 Valid, 913 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-17 18:44:23,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-03-17 18:44:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 669. [2022-03-17 18:44:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 531 states have (on average 1.256120527306968) internal successors, (667), 546 states have internal predecessors, (667), 71 states have call successors, (71), 48 states have call predecessors, (71), 66 states have return successors, (92), 82 states have call predecessors, (92), 65 states have call successors, (92) [2022-03-17 18:44:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 830 transitions. [2022-03-17 18:44:23,515 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 830 transitions. Word has length 69 [2022-03-17 18:44:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:23,515 INFO L478 AbstractCegarLoop]: Abstraction has 669 states and 830 transitions. [2022-03-17 18:44:23,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 830 transitions. [2022-03-17 18:44:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:44:23,516 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:23,516 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:23,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 18:44:23,517 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 300444932, now seen corresponding path program 1 times [2022-03-17 18:44:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670850228] [2022-03-17 18:44:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:23,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670850228] [2022-03-17 18:44:23,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670850228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:23,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:23,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-17 18:44:23,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312124650] [2022-03-17 18:44:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:23,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-17 18:44:23,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:23,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-17 18:44:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-17 18:44:23,765 INFO L87 Difference]: Start difference. First operand 669 states and 830 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:25,470 INFO L93 Difference]: Finished difference Result 724 states and 909 transitions. [2022-03-17 18:44:25,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-17 18:44:25,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-03-17 18:44:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:25,477 INFO L225 Difference]: With dead ends: 724 [2022-03-17 18:44:25,477 INFO L226 Difference]: Without dead ends: 692 [2022-03-17 18:44:25,477 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2022-03-17 18:44:25,477 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 379 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3909 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 3909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:25,478 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 1636 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 3909 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 18:44:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-03-17 18:44:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 640. [2022-03-17 18:44:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 507 states have (on average 1.252465483234714) internal successors, (635), 521 states have internal predecessors, (635), 70 states have call successors, (70), 47 states have call predecessors, (70), 62 states have return successors, (88), 78 states have call predecessors, (88), 64 states have call successors, (88) [2022-03-17 18:44:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 793 transitions. [2022-03-17 18:44:25,485 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 793 transitions. Word has length 69 [2022-03-17 18:44:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:25,485 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 793 transitions. [2022-03-17 18:44:25,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 793 transitions. [2022-03-17 18:44:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:44:25,487 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:25,487 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:25,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 18:44:25,487 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:25,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1365836196, now seen corresponding path program 1 times [2022-03-17 18:44:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:25,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402605982] [2022-03-17 18:44:25,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:25,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 18:44:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:44:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:25,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:25,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402605982] [2022-03-17 18:44:25,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402605982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:25,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:25,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-17 18:44:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278559056] [2022-03-17 18:44:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:25,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-17 18:44:25,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-17 18:44:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:44:25,675 INFO L87 Difference]: Start difference. First operand 640 states and 793 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:26,625 INFO L93 Difference]: Finished difference Result 688 states and 865 transitions. [2022-03-17 18:44:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:44:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-03-17 18:44:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:26,626 INFO L225 Difference]: With dead ends: 688 [2022-03-17 18:44:26,626 INFO L226 Difference]: Without dead ends: 683 [2022-03-17 18:44:26,626 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:44:26,627 INFO L912 BasicCegarLoop]: 429 mSDtfsCounter, 893 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:26,627 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 1173 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 18:44:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-03-17 18:44:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 635. [2022-03-17 18:44:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 503 states have (on average 1.2524850894632207) internal successors, (630), 517 states have internal predecessors, (630), 69 states have call successors, (69), 47 states have call predecessors, (69), 62 states have return successors, (87), 77 states have call predecessors, (87), 63 states have call successors, (87) [2022-03-17 18:44:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 786 transitions. [2022-03-17 18:44:26,632 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 786 transitions. Word has length 69 [2022-03-17 18:44:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:26,632 INFO L478 AbstractCegarLoop]: Abstraction has 635 states and 786 transitions. [2022-03-17 18:44:26,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 786 transitions. [2022-03-17 18:44:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:44:26,633 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:26,633 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:26,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 18:44:26,633 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -415492251, now seen corresponding path program 1 times [2022-03-17 18:44:26,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156438766] [2022-03-17 18:44:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-17 18:44:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:44:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:26,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:26,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156438766] [2022-03-17 18:44:26,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156438766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:26,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:26,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-17 18:44:26,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426002310] [2022-03-17 18:44:26,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:26,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-17 18:44:26,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-17 18:44:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-17 18:44:26,908 INFO L87 Difference]: Start difference. First operand 635 states and 786 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:28,591 INFO L93 Difference]: Finished difference Result 707 states and 886 transitions. [2022-03-17 18:44:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-17 18:44:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-03-17 18:44:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:28,592 INFO L225 Difference]: With dead ends: 707 [2022-03-17 18:44:28,592 INFO L226 Difference]: Without dead ends: 680 [2022-03-17 18:44:28,593 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-03-17 18:44:28,593 INFO L912 BasicCegarLoop]: 444 mSDtfsCounter, 1120 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:28,593 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 2155 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:44:28,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-03-17 18:44:28,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 632. [2022-03-17 18:44:28,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 501 states have (on average 1.251497005988024) internal successors, (627), 515 states have internal predecessors, (627), 68 states have call successors, (68), 47 states have call predecessors, (68), 62 states have return successors, (86), 76 states have call predecessors, (86), 62 states have call successors, (86) [2022-03-17 18:44:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 781 transitions. [2022-03-17 18:44:28,601 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 781 transitions. Word has length 69 [2022-03-17 18:44:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:28,601 INFO L478 AbstractCegarLoop]: Abstraction has 632 states and 781 transitions. [2022-03-17 18:44:28,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-03-17 18:44:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 781 transitions. [2022-03-17 18:44:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:44:28,604 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:28,604 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:28,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 18:44:28,604 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:28,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:28,605 INFO L85 PathProgramCache]: Analyzing trace with hash 135714178, now seen corresponding path program 1 times [2022-03-17 18:44:28,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:28,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095755947] [2022-03-17 18:44:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:28,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 18:44:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-17 18:44:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:28,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:28,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095755947] [2022-03-17 18:44:28,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095755947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:28,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:28,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:44:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936102144] [2022-03-17 18:44:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:28,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:44:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:44:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:28,828 INFO L87 Difference]: Start difference. First operand 632 states and 781 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:29,930 INFO L93 Difference]: Finished difference Result 684 states and 858 transitions. [2022-03-17 18:44:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:44:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-03-17 18:44:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:29,931 INFO L225 Difference]: With dead ends: 684 [2022-03-17 18:44:29,931 INFO L226 Difference]: Without dead ends: 684 [2022-03-17 18:44:29,932 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:44:29,932 INFO L912 BasicCegarLoop]: 419 mSDtfsCounter, 689 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:29,932 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 1162 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 18:44:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-03-17 18:44:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 632. [2022-03-17 18:44:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 501 states have (on average 1.249500998003992) internal successors, (626), 515 states have internal predecessors, (626), 68 states have call successors, (68), 47 states have call predecessors, (68), 62 states have return successors, (86), 76 states have call predecessors, (86), 62 states have call successors, (86) [2022-03-17 18:44:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 780 transitions. [2022-03-17 18:44:29,939 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 780 transitions. Word has length 71 [2022-03-17 18:44:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:29,939 INFO L478 AbstractCegarLoop]: Abstraction has 632 states and 780 transitions. [2022-03-17 18:44:29,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 780 transitions. [2022-03-17 18:44:29,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:44:29,940 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:29,941 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:29,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 18:44:29,941 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:29,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:29,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1161206177, now seen corresponding path program 1 times [2022-03-17 18:44:29,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:29,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504272961] [2022-03-17 18:44:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:29,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 18:44:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-17 18:44:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:30,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:30,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504272961] [2022-03-17 18:44:30,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504272961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:30,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:30,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-17 18:44:30,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057005623] [2022-03-17 18:44:30,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:30,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 18:44:30,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 18:44:30,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:30,266 INFO L87 Difference]: Start difference. First operand 632 states and 780 transitions. Second operand has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:32,087 INFO L93 Difference]: Finished difference Result 717 states and 901 transitions. [2022-03-17 18:44:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 18:44:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2022-03-17 18:44:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:32,093 INFO L225 Difference]: With dead ends: 717 [2022-03-17 18:44:32,093 INFO L226 Difference]: Without dead ends: 682 [2022-03-17 18:44:32,093 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:44:32,093 INFO L912 BasicCegarLoop]: 429 mSDtfsCounter, 710 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 4034 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 4034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:32,093 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 2416 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 4034 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 18:44:32,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-03-17 18:44:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 627. [2022-03-17 18:44:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 497 states have (on average 1.2454728370221329) internal successors, (619), 511 states have internal predecessors, (619), 67 states have call successors, (67), 47 states have call predecessors, (67), 62 states have return successors, (84), 75 states have call predecessors, (84), 61 states have call successors, (84) [2022-03-17 18:44:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 770 transitions. [2022-03-17 18:44:32,101 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 770 transitions. Word has length 71 [2022-03-17 18:44:32,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:32,101 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 770 transitions. [2022-03-17 18:44:32,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.65) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-03-17 18:44:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 770 transitions. [2022-03-17 18:44:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:44:32,102 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:32,102 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:32,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 18:44:32,102 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:32,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1109131485, now seen corresponding path program 1 times [2022-03-17 18:44:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:32,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143355826] [2022-03-17 18:44:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-03-17 18:44:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-17 18:44:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:32,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143355826] [2022-03-17 18:44:32,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143355826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:32,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:32,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:44:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618849358] [2022-03-17 18:44:32,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:32,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:44:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:32,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:44:32,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:32,301 INFO L87 Difference]: Start difference. First operand 627 states and 770 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:33,436 INFO L93 Difference]: Finished difference Result 677 states and 844 transitions. [2022-03-17 18:44:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:44:33,436 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-03-17 18:44:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:33,437 INFO L225 Difference]: With dead ends: 677 [2022-03-17 18:44:33,437 INFO L226 Difference]: Without dead ends: 671 [2022-03-17 18:44:33,437 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:44:33,438 INFO L912 BasicCegarLoop]: 408 mSDtfsCounter, 442 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:33,438 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1145 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-17 18:44:33,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-03-17 18:44:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 621. [2022-03-17 18:44:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 492 states have (on average 1.2459349593495934) internal successors, (613), 506 states have internal predecessors, (613), 66 states have call successors, (66), 47 states have call predecessors, (66), 62 states have return successors, (83), 74 states have call predecessors, (83), 60 states have call successors, (83) [2022-03-17 18:44:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 762 transitions. [2022-03-17 18:44:33,445 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 762 transitions. Word has length 71 [2022-03-17 18:44:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:33,445 INFO L478 AbstractCegarLoop]: Abstraction has 621 states and 762 transitions. [2022-03-17 18:44:33,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 762 transitions. [2022-03-17 18:44:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-17 18:44:33,446 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:33,446 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:33,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 18:44:33,447 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:33,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:33,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1256769401, now seen corresponding path program 1 times [2022-03-17 18:44:33,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:33,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901221416] [2022-03-17 18:44:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:33,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:33,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901221416] [2022-03-17 18:44:33,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901221416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:33,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:33,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-17 18:44:33,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078842516] [2022-03-17 18:44:33,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:33,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-17 18:44:33,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:33,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-17 18:44:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-03-17 18:44:33,723 INFO L87 Difference]: Start difference. First operand 621 states and 762 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:35,551 INFO L93 Difference]: Finished difference Result 738 states and 910 transitions. [2022-03-17 18:44:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-17 18:44:35,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2022-03-17 18:44:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:35,553 INFO L225 Difference]: With dead ends: 738 [2022-03-17 18:44:35,553 INFO L226 Difference]: Without dead ends: 713 [2022-03-17 18:44:35,553 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:44:35,553 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 753 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 3547 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 3547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:35,553 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2017 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 3547 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 18:44:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-03-17 18:44:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 627. [2022-03-17 18:44:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 498 states have (on average 1.2349397590361446) internal successors, (615), 512 states have internal predecessors, (615), 66 states have call successors, (66), 47 states have call predecessors, (66), 62 states have return successors, (83), 74 states have call predecessors, (83), 60 states have call successors, (83) [2022-03-17 18:44:35,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 764 transitions. [2022-03-17 18:44:35,561 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 764 transitions. Word has length 71 [2022-03-17 18:44:35,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:35,562 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 764 transitions. [2022-03-17 18:44:35,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (9), 9 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 1 states have call successors, (7) [2022-03-17 18:44:35,562 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 764 transitions. [2022-03-17 18:44:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:44:35,563 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:35,563 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:35,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 18:44:35,563 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:35,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash 958622839, now seen corresponding path program 1 times [2022-03-17 18:44:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:35,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926663549] [2022-03-17 18:44:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-03-17 18:44:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:35,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:35,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926663549] [2022-03-17 18:44:35,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926663549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:35,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:35,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:44:35,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623809291] [2022-03-17 18:44:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:35,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:44:35,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:35,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:44:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:35,781 INFO L87 Difference]: Start difference. First operand 627 states and 764 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:36,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:36,634 INFO L93 Difference]: Finished difference Result 676 states and 836 transitions. [2022-03-17 18:44:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-17 18:44:36,634 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-03-17 18:44:36,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:36,635 INFO L225 Difference]: With dead ends: 676 [2022-03-17 18:44:36,635 INFO L226 Difference]: Without dead ends: 665 [2022-03-17 18:44:36,635 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:44:36,636 INFO L912 BasicCegarLoop]: 399 mSDtfsCounter, 626 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:36,636 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 1138 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 18:44:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-03-17 18:44:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 615. [2022-03-17 18:44:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 487 states have (on average 1.2299794661190966) internal successors, (599), 501 states have internal predecessors, (599), 65 states have call successors, (65), 47 states have call predecessors, (65), 62 states have return successors, (82), 73 states have call predecessors, (82), 59 states have call successors, (82) [2022-03-17 18:44:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 746 transitions. [2022-03-17 18:44:36,643 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 746 transitions. Word has length 73 [2022-03-17 18:44:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:36,643 INFO L478 AbstractCegarLoop]: Abstraction has 615 states and 746 transitions. [2022-03-17 18:44:36,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-03-17 18:44:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 746 transitions. [2022-03-17 18:44:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:44:36,645 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:36,645 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:36,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 18:44:36,645 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1514534938, now seen corresponding path program 1 times [2022-03-17 18:44:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221631862] [2022-03-17 18:44:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 18:44:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:36,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:36,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221631862] [2022-03-17 18:44:36,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221631862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:36,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:36,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-17 18:44:36,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509678733] [2022-03-17 18:44:36,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:36,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-17 18:44:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:36,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-17 18:44:36,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:44:36,964 INFO L87 Difference]: Start difference. First operand 615 states and 746 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-17 18:44:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:40,290 INFO L93 Difference]: Finished difference Result 1360 states and 1669 transitions. [2022-03-17 18:44:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-17 18:44:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2022-03-17 18:44:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:40,292 INFO L225 Difference]: With dead ends: 1360 [2022-03-17 18:44:40,292 INFO L226 Difference]: Without dead ends: 1353 [2022-03-17 18:44:40,292 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=676, Invalid=2630, Unknown=0, NotChecked=0, Total=3306 [2022-03-17 18:44:40,299 INFO L912 BasicCegarLoop]: 418 mSDtfsCounter, 2588 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 3985 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2593 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 4843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 3985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:40,299 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2593 Valid, 1432 Invalid, 4843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 3985 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:44:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-03-17 18:44:40,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 974. [2022-03-17 18:44:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 775 states have (on average 1.2490322580645161) internal successors, (968), 798 states have internal predecessors, (968), 99 states have call successors, (99), 77 states have call predecessors, (99), 99 states have return successors, (130), 105 states have call predecessors, (130), 93 states have call successors, (130) [2022-03-17 18:44:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1197 transitions. [2022-03-17 18:44:40,324 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1197 transitions. Word has length 73 [2022-03-17 18:44:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:40,325 INFO L478 AbstractCegarLoop]: Abstraction has 974 states and 1197 transitions. [2022-03-17 18:44:40,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 10 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-17 18:44:40,325 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1197 transitions. [2022-03-17 18:44:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:44:40,327 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:40,327 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:40,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 18:44:40,327 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:40,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:40,328 INFO L85 PathProgramCache]: Analyzing trace with hash -293312583, now seen corresponding path program 1 times [2022-03-17 18:44:40,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:40,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151916398] [2022-03-17 18:44:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-03-17 18:44:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-03-17 18:44:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:40,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:40,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151916398] [2022-03-17 18:44:40,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151916398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:40,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:40,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-17 18:44:40,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032527292] [2022-03-17 18:44:40,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:40,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 18:44:40,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 18:44:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:44:40,560 INFO L87 Difference]: Start difference. First operand 974 states and 1197 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-17 18:44:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:42,430 INFO L93 Difference]: Finished difference Result 1243 states and 1537 transitions. [2022-03-17 18:44:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-17 18:44:42,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2022-03-17 18:44:42,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:42,432 INFO L225 Difference]: With dead ends: 1243 [2022-03-17 18:44:42,432 INFO L226 Difference]: Without dead ends: 1243 [2022-03-17 18:44:42,432 INFO L911 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 [2022-03-17 18:44:42,433 INFO L912 BasicCegarLoop]: 697 mSDtfsCounter, 2475 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:42,433 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2479 Valid, 1408 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 18:44:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-03-17 18:44:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1067. [2022-03-17 18:44:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 848 states have (on average 1.2382075471698113) internal successors, (1050), 866 states have internal predecessors, (1050), 113 states have call successors, (113), 81 states have call predecessors, (113), 105 states have return successors, (146), 124 states have call predecessors, (146), 107 states have call successors, (146) [2022-03-17 18:44:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1309 transitions. [2022-03-17 18:44:42,445 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1309 transitions. Word has length 73 [2022-03-17 18:44:42,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:42,445 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1309 transitions. [2022-03-17 18:44:42,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 6 states have internal predecessors, (55), 5 states have call successors, (10), 10 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-03-17 18:44:42,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1309 transitions. [2022-03-17 18:44:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 18:44:42,447 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:42,447 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:42,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 18:44:42,448 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1233732800, now seen corresponding path program 1 times [2022-03-17 18:44:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:42,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784953425] [2022-03-17 18:44:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:42,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:44:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-17 18:44:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:42,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:42,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784953425] [2022-03-17 18:44:42,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784953425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:42,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:42,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-17 18:44:42,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335670707] [2022-03-17 18:44:42,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:42,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 18:44:42,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:42,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 18:44:42,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:44:42,768 INFO L87 Difference]: Start difference. First operand 1067 states and 1309 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-17 18:44:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:44,629 INFO L93 Difference]: Finished difference Result 1198 states and 1495 transitions. [2022-03-17 18:44:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-17 18:44:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-03-17 18:44:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:44,631 INFO L225 Difference]: With dead ends: 1198 [2022-03-17 18:44:44,631 INFO L226 Difference]: Without dead ends: 1159 [2022-03-17 18:44:44,631 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-03-17 18:44:44,632 INFO L912 BasicCegarLoop]: 397 mSDtfsCounter, 590 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 4016 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 4245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 4016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:44,632 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 2483 Invalid, 4245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 18:44:44,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-03-17 18:44:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1063. [2022-03-17 18:44:44,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 844 states have (on average 1.2369668246445498) internal successors, (1044), 862 states have internal predecessors, (1044), 113 states have call successors, (113), 81 states have call predecessors, (113), 105 states have return successors, (146), 124 states have call predecessors, (146), 107 states have call successors, (146) [2022-03-17 18:44:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1303 transitions. [2022-03-17 18:44:44,643 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1303 transitions. Word has length 77 [2022-03-17 18:44:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:44,643 INFO L478 AbstractCegarLoop]: Abstraction has 1063 states and 1303 transitions. [2022-03-17 18:44:44,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 10 states have internal predecessors, (57), 4 states have call successors, (11), 10 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-03-17 18:44:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1303 transitions. [2022-03-17 18:44:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 18:44:44,645 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:44,645 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:44,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 18:44:44,645 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:44,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1007653317, now seen corresponding path program 1 times [2022-03-17 18:44:44,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:44,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072632542] [2022-03-17 18:44:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:44,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-03-17 18:44:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-03-17 18:44:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:44,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072632542] [2022-03-17 18:44:44,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072632542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:44,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:44,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-17 18:44:44,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456162487] [2022-03-17 18:44:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:44,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-17 18:44:44,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:44,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-17 18:44:44,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:44:44,853 INFO L87 Difference]: Start difference. First operand 1063 states and 1303 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-17 18:44:45,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:45,843 INFO L93 Difference]: Finished difference Result 1129 states and 1393 transitions. [2022-03-17 18:44:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:44:45,843 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2022-03-17 18:44:45,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:45,844 INFO L225 Difference]: With dead ends: 1129 [2022-03-17 18:44:45,844 INFO L226 Difference]: Without dead ends: 1099 [2022-03-17 18:44:45,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:44:45,845 INFO L912 BasicCegarLoop]: 374 mSDtfsCounter, 704 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:45,845 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 1102 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 18:44:45,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-03-17 18:44:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1029. [2022-03-17 18:44:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 816 states have (on average 1.232843137254902) internal successors, (1006), 834 states have internal predecessors, (1006), 107 states have call successors, (107), 81 states have call predecessors, (107), 105 states have return successors, (138), 118 states have call predecessors, (138), 101 states have call successors, (138) [2022-03-17 18:44:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1251 transitions. [2022-03-17 18:44:45,856 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1251 transitions. Word has length 78 [2022-03-17 18:44:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:45,856 INFO L478 AbstractCegarLoop]: Abstraction has 1029 states and 1251 transitions. [2022-03-17 18:44:45,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-17 18:44:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1251 transitions. [2022-03-17 18:44:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 18:44:45,858 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:45,858 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:45,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 18:44:45,858 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:45,858 INFO L85 PathProgramCache]: Analyzing trace with hash -7999414, now seen corresponding path program 1 times [2022-03-17 18:44:45,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:45,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565629094] [2022-03-17 18:44:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:44:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:45,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-03-17 18:44:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-17 18:44:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-03-17 18:44:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-03-17 18:44:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-17 18:44:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-03-17 18:44:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-03-17 18:44:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:44:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:44:46,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:44:46,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565629094] [2022-03-17 18:44:46,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565629094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:44:46,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:44:46,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-17 18:44:46,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681166029] [2022-03-17 18:44:46,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:44:46,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-17 18:44:46,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:44:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-17 18:44:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:44:46,106 INFO L87 Difference]: Start difference. First operand 1029 states and 1251 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-17 18:44:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:44:47,044 INFO L93 Difference]: Finished difference Result 1069 states and 1309 transitions. [2022-03-17 18:44:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-17 18:44:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2022-03-17 18:44:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:44:47,046 INFO L225 Difference]: With dead ends: 1069 [2022-03-17 18:44:47,046 INFO L226 Difference]: Without dead ends: 1033 [2022-03-17 18:44:47,047 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-03-17 18:44:47,048 INFO L912 BasicCegarLoop]: 346 mSDtfsCounter, 479 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:44:47,048 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1345 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1639 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 18:44:47,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-03-17 18:44:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 981. [2022-03-17 18:44:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 782 states have (on average 1.2352941176470589) internal successors, (966), 800 states have internal predecessors, (966), 97 states have call successors, (97), 77 states have call predecessors, (97), 101 states have return successors, (126), 108 states have call predecessors, (126), 91 states have call successors, (126) [2022-03-17 18:44:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1189 transitions. [2022-03-17 18:44:47,059 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1189 transitions. Word has length 75 [2022-03-17 18:44:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:44:47,059 INFO L478 AbstractCegarLoop]: Abstraction has 981 states and 1189 transitions. [2022-03-17 18:44:47,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (11), 10 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-03-17 18:44:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1189 transitions. [2022-03-17 18:44:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:44:47,061 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:44:47,061 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:47,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 18:44:47,061 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:44:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:44:47,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1981078137, now seen corresponding path program 1 times [2022-03-17 18:44:47,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:44:47,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788665476] [2022-03-17 18:44:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:44:47,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:44:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 18:44:47,076 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-17 18:44:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-17 18:44:47,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-17 18:44:47,148 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-17 18:44:47,149 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 18:44:47,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-17 18:44:47,160 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:44:47,163 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 18:44:47,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:44:47 BasicIcfg [2022-03-17 18:44:47,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 18:44:47,261 INFO L158 Benchmark]: Toolchain (without parser) took 139922.31ms. Allocated memory was 177.2MB in the beginning and 302.0MB in the end (delta: 124.8MB). Free memory was 126.3MB in the beginning and 225.8MB in the end (delta: -99.5MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-03-17 18:44:47,261 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory was 144.7MB in the beginning and 144.6MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 18:44:47,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.98ms. Allocated memory was 177.2MB in the beginning and 248.5MB in the end (delta: 71.3MB). Free memory was 126.1MB in the beginning and 207.8MB in the end (delta: -81.6MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2022-03-17 18:44:47,262 INFO L158 Benchmark]: Boogie Preprocessor took 136.84ms. Allocated memory is still 248.5MB. Free memory was 207.8MB in the beginning and 202.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-17 18:44:47,262 INFO L158 Benchmark]: RCFGBuilder took 1266.67ms. Allocated memory is still 248.5MB. Free memory was 202.5MB in the beginning and 136.5MB in the end (delta: 66.0MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2022-03-17 18:44:47,262 INFO L158 Benchmark]: IcfgTransformer took 67.33ms. Allocated memory is still 248.5MB. Free memory was 136.5MB in the beginning and 128.7MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-17 18:44:47,262 INFO L158 Benchmark]: TraceAbstraction took 137915.57ms. Allocated memory was 248.5MB in the beginning and 302.0MB in the end (delta: 53.5MB). Free memory was 128.1MB in the beginning and 225.8MB in the end (delta: -97.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 18:44:47,262 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 177.2MB. Free memory was 144.7MB in the beginning and 144.6MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 522.98ms. Allocated memory was 177.2MB in the beginning and 248.5MB in the end (delta: 71.3MB). Free memory was 126.1MB in the beginning and 207.8MB in the end (delta: -81.6MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 136.84ms. Allocated memory is still 248.5MB. Free memory was 207.8MB in the beginning and 202.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1266.67ms. Allocated memory is still 248.5MB. Free memory was 202.5MB in the beginning and 136.5MB in the end (delta: 66.0MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * IcfgTransformer took 67.33ms. Allocated memory is still 248.5MB. Free memory was 136.5MB in the beginning and 128.7MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 137915.57ms. Allocated memory was 248.5MB in the beginning and 302.0MB in the end (delta: 53.5MB). Free memory was 128.1MB in the beginning and 225.8MB in the end (delta: -97.7MB). There was no memory consumed. 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 30 procedures, 517 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 137.8s, OverallIterations: 68, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 121.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72748 SdHoareTripleChecker+Valid, 108.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72327 mSDsluCounter, 117795 SdHoareTripleChecker+Invalid, 92.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78633 mSDsCounter, 25450 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187453 IncrementalHoareTripleChecker+Invalid, 212903 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25450 mSolverCounterUnsat, 39162 mSDtfsCounter, 187453 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1777 GetRequests, 661 SyntacticMatches, 14 SemanticMatches, 1102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2778 ImplicationChecksByTransitivity, 17.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1067occurred in iteration=64, InterpolantAutomatonStates: 905, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 67 MinimizatonAttempts, 8538 StatesRemovedByMinimization, 67 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 4017 NumberOfCodeBlocks, 4017 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 3877 ConstructedInterpolants, 0 QuantifiedInterpolants, 20367 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 67 InterpolantComputations, 67 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-17 18:44:47,297 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...