/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-7390193 [2022-04-05 04:10:40,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:10:40,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:10:40,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:10:40,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:10:40,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:10:40,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:10:40,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:10:40,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:10:40,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:10:40,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:10:40,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:10:40,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:10:40,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:10:40,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:10:40,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:10:40,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:10:40,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:10:40,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:10:40,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:10:40,157 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:10:40,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:10:40,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:10:40,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:10:40,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:10:40,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:10:40,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:10:40,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:10:40,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:10:40,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:10:40,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 04:10:40,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 04:10:40,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 04:10:40,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 04:10:40,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 04:10:40,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 04:10:40,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 04:10:40,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 04:10:40,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 04:10:40,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:10:40,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:10:40,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:10:40,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:10:40,179 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:10:40,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:10:40,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:10:40,180 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:10:40,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:10:40,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:10:40,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:10:40,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:10:40,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:10:40,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:10:40,181 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:10:40,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:10:40,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:10:40,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:10:40,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:10:40,183 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:10:40,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:10:40,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:10:40,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:10:40,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:10:40,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:10:40,389 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:10:40,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-04-05 04:10:40,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62d5d50/64dd11e92b704d008fe37356acfb2ee2/FLAG0af40f466 [2022-04-05 04:10:40,864 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:10:40,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-04-05 04:10:40,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62d5d50/64dd11e92b704d008fe37356acfb2ee2/FLAG0af40f466 [2022-04-05 04:10:41,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c62d5d50/64dd11e92b704d008fe37356acfb2ee2 [2022-04-05 04:10:41,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:10:41,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:10:41,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:10:41,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:10:41,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:10:41,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6b3b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41, skipping insertion in model container [2022-04-05 04:10:41,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:10:41,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:10:41,442 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] [2022-04-05 04:10:41,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:10:41,545 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:10:41,554 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] [2022-04-05 04:10:41,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:10:41,628 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:10:41,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41 WrapperNode [2022-04-05 04:10:41,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:10:41,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:10:41,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:10:41,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:10:41,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:10:41,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:10:41,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:10:41,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:10:41,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (1/1) ... [2022-04-05 04:10:41,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:10:41,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:10:41,772 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) [2022-04-05 04:10:41,812 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 [2022-04-05 04:10:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:10:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:10:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice [2022-04-05 04:10:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPnp [2022-04-05 04:10:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl [2022-04-05 04:10:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-04-05 04:10:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-04-05 04:10:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl [2022-04-05 04:10:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-04-05 04:10:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-04-05 04:10:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioUnload [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioPower [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-04-05 04:10:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-04-05 04:10:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:10:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:10:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:10:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioStartDevice [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPnp [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl [2022-04-05 04:10:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioPower [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-04-05 04:10:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioUnload [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:10:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:10:42,072 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:10:42,074 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:10:42,212 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,265 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-04-05 04:10:42,265 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-04-05 04:10:42,268 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,290 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-04-05 04:10:42,290 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-04-05 04:10:42,306 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-04-05 04:10:42,316 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-04-05 04:10:42,368 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,405 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-04-05 04:10:42,405 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: #res := 0; [2022-04-05 04:10:42,405 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-04-05 04:10:42,415 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,587 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-04-05 04:10:42,588 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-04-05 04:10:42,588 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,620 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-04-05 04:10:42,620 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-04-05 04:10:42,657 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,677 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2022-04-05 04:10:42,677 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2022-04-05 04:10:42,680 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-04-05 04:10:42,840 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-04-05 04:10:42,848 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:10:42,851 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:10:42,851 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:10:42,862 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:10:42,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:10:42,870 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:10:42,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:10:42 BoogieIcfgContainer [2022-04-05 04:10:42,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:10:42,877 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:10:42,877 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:10:42,878 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:10:42,881 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:10:42" (1/1) ... [2022-04-05 04:10:42,882 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:10:42,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:10:42 BasicIcfg [2022-04-05 04:10:42,931 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:10:42,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:10:42,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:10:42,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:10:42,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:10:41" (1/4) ... [2022-04-05 04:10:42,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c330575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:10:42, skipping insertion in model container [2022-04-05 04:10:42,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:10:41" (2/4) ... [2022-04-05 04:10:42,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c330575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:10:42, skipping insertion in model container [2022-04-05 04:10:42,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:10:42" (3/4) ... [2022-04-05 04:10:42,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c330575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:10:42, skipping insertion in model container [2022-04-05 04:10:42,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:10:42" (4/4) ... [2022-04-05 04:10:42,939 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.cJordan [2022-04-05 04:10:42,943 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:10:42,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:10:42,983 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:10:42,989 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 [2022-04-05 04:10:42,989 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:10:43,007 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) [2022-04-05 04:10:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-05 04:10:43,021 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:43,022 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:43,022 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash 784814983, now seen corresponding path program 1 times [2022-04-05 04:10:43,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:43,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834323880] [2022-04-05 04:10:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:43,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834323880] [2022-04-05 04:10:43,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834323880] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:43,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:43,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:10:43,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656439153] [2022-04-05 04:10:43,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:43,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:10:43,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:10:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:10:43,404 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) [2022-04-05 04:10:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:45,314 INFO L93 Difference]: Finished difference Result 681 states and 1043 transitions. [2022-04-05 04:10:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:10:45,316 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 [2022-04-05 04:10:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:45,327 INFO L225 Difference]: With dead ends: 681 [2022-04-05 04:10:45,327 INFO L226 Difference]: Without dead ends: 665 [2022-04-05 04:10:45,329 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:45,331 INFO L913 BasicCegarLoop]: 741 mSDtfsCounter, 399 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:45,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 1013 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:10:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-04-05 04:10:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509. [2022-04-05 04:10:45,388 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) [2022-04-05 04:10:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2022-04-05 04:10:45,391 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20 [2022-04-05 04:10:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:45,391 INFO L478 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2022-04-05 04:10:45,392 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) [2022-04-05 04:10:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2022-04-05 04:10:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-05 04:10:45,392 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:45,393 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:45,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:10:45,393 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash -30338372, now seen corresponding path program 1 times [2022-04-05 04:10:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:45,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356377520] [2022-04-05 04:10:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:45,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:45,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356377520] [2022-04-05 04:10:45,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356377520] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:45,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:45,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:10:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674032988] [2022-04-05 04:10:45,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:45,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:10:45,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:45,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:10:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:45,537 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) [2022-04-05 04:10:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:47,006 INFO L93 Difference]: Finished difference Result 847 states and 1261 transitions. [2022-04-05 04:10:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:10:47,007 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 [2022-04-05 04:10:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:47,012 INFO L225 Difference]: With dead ends: 847 [2022-04-05 04:10:47,012 INFO L226 Difference]: Without dead ends: 846 [2022-04-05 04:10:47,013 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:10:47,013 INFO L913 BasicCegarLoop]: 851 mSDtfsCounter, 1498 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:47,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 1023 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-05 04:10:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-04-05 04:10:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664. [2022-04-05 04:10:47,045 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) [2022-04-05 04:10:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions. [2022-04-05 04:10:47,048 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25 [2022-04-05 04:10:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:47,049 INFO L478 AbstractCegarLoop]: Abstraction has 664 states and 964 transitions. [2022-04-05 04:10:47,049 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) [2022-04-05 04:10:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions. [2022-04-05 04:10:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-05 04:10:47,050 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:47,050 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:47,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:10:47,051 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:47,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash -759392990, now seen corresponding path program 1 times [2022-04-05 04:10:47,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:47,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975709418] [2022-04-05 04:10:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:47,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:47,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975709418] [2022-04-05 04:10:47,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975709418] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:47,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:47,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:10:47,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535841521] [2022-04-05 04:10:47,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:47,202 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:10:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:47,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:10:47,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:47,203 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) [2022-04-05 04:10:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:48,919 INFO L93 Difference]: Finished difference Result 970 states and 1415 transitions. [2022-04-05 04:10:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:10:48,920 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 [2022-04-05 04:10:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:48,924 INFO L225 Difference]: With dead ends: 970 [2022-04-05 04:10:48,925 INFO L226 Difference]: Without dead ends: 970 [2022-04-05 04:10:48,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:10:48,926 INFO L913 BasicCegarLoop]: 725 mSDtfsCounter, 1121 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:48,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 886 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:10:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-04-05 04:10:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789. [2022-04-05 04:10:48,979 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) [2022-04-05 04:10:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions. [2022-04-05 04:10:48,982 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30 [2022-04-05 04:10:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:48,982 INFO L478 AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions. [2022-04-05 04:10:48,983 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) [2022-04-05 04:10:48,983 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions. [2022-04-05 04:10:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-05 04:10:48,984 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:48,984 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:48,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:10:48,984 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1280175921, now seen corresponding path program 1 times [2022-04-05 04:10:48,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:48,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64843058] [2022-04-05 04:10:48,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:49,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:49,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64843058] [2022-04-05 04:10:49,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64843058] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:49,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:49,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:10:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469423643] [2022-04-05 04:10:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:49,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:10:49,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:49,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:10:49,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:49,110 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) [2022-04-05 04:10:50,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:50,654 INFO L93 Difference]: Finished difference Result 1344 states and 2031 transitions. [2022-04-05 04:10:50,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:10:50,655 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 [2022-04-05 04:10:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:50,660 INFO L225 Difference]: With dead ends: 1344 [2022-04-05 04:10:50,660 INFO L226 Difference]: Without dead ends: 1344 [2022-04-05 04:10:50,661 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:10:50,670 INFO L913 BasicCegarLoop]: 1006 mSDtfsCounter, 1482 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:50,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 1262 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-05 04:10:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2022-04-05 04:10:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907. [2022-04-05 04:10:50,703 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) [2022-04-05 04:10:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions. [2022-04-05 04:10:50,707 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31 [2022-04-05 04:10:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:50,708 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions. [2022-04-05 04:10:50,708 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) [2022-04-05 04:10:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions. [2022-04-05 04:10:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-05 04:10:50,713 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:50,713 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:50,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:10:50,714 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 998226604, now seen corresponding path program 1 times [2022-04-05 04:10:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:50,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690553324] [2022-04-05 04:10:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:50,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:50,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690553324] [2022-04-05 04:10:50,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690553324] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:50,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:50,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:10:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297093402] [2022-04-05 04:10:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:50,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:10:50,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:50,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:10:50,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:10:50,911 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) [2022-04-05 04:10:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:52,720 INFO L93 Difference]: Finished difference Result 1046 states and 1583 transitions. [2022-04-05 04:10:52,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:10:52,720 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 [2022-04-05 04:10:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:52,724 INFO L225 Difference]: With dead ends: 1046 [2022-04-05 04:10:52,724 INFO L226 Difference]: Without dead ends: 1046 [2022-04-05 04:10:52,725 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:10:52,728 INFO L913 BasicCegarLoop]: 742 mSDtfsCounter, 3730 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:52,729 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3736 Valid, 889 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:10:52,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-04-05 04:10:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 835. [2022-04-05 04:10:52,760 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) [2022-04-05 04:10:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions. [2022-04-05 04:10:52,763 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32 [2022-04-05 04:10:52,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:52,765 INFO L478 AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions. [2022-04-05 04:10:52,765 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) [2022-04-05 04:10:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions. [2022-04-05 04:10:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-04-05 04:10:52,767 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:52,767 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:52,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:10:52,767 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash 936943045, now seen corresponding path program 1 times [2022-04-05 04:10:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:52,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519734978] [2022-04-05 04:10:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:52,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:53,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519734978] [2022-04-05 04:10:53,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519734978] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:53,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:53,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:10:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359396766] [2022-04-05 04:10:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:53,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:10:53,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:10:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:53,015 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) [2022-04-05 04:10:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:54,352 INFO L93 Difference]: Finished difference Result 961 states and 1420 transitions. [2022-04-05 04:10:54,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:10:54,352 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 [2022-04-05 04:10:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:54,356 INFO L225 Difference]: With dead ends: 961 [2022-04-05 04:10:54,356 INFO L226 Difference]: Without dead ends: 961 [2022-04-05 04:10:54,356 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:10:54,358 INFO L913 BasicCegarLoop]: 713 mSDtfsCounter, 422 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:54,358 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 960 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:10:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-04-05 04:10:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834. [2022-04-05 04:10:54,373 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) [2022-04-05 04:10:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions. [2022-04-05 04:10:54,375 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36 [2022-04-05 04:10:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:54,376 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions. [2022-04-05 04:10:54,376 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) [2022-04-05 04:10:54,376 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions. [2022-04-05 04:10:54,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-05 04:10:54,378 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:54,378 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:54,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:10:54,379 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1670644950, now seen corresponding path program 1 times [2022-04-05 04:10:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:54,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813469327] [2022-04-05 04:10:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:54,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:54,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:54,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813469327] [2022-04-05 04:10:54,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813469327] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:54,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:54,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:10:54,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893955579] [2022-04-05 04:10:54,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:54,535 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:10:54,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:10:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:10:54,536 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) [2022-04-05 04:10:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:56,381 INFO L93 Difference]: Finished difference Result 999 states and 1436 transitions. [2022-04-05 04:10:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:10:56,381 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 [2022-04-05 04:10:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:56,384 INFO L225 Difference]: With dead ends: 999 [2022-04-05 04:10:56,385 INFO L226 Difference]: Without dead ends: 999 [2022-04-05 04:10:56,385 INFO L912 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 [2022-04-05 04:10:56,385 INFO L913 BasicCegarLoop]: 821 mSDtfsCounter, 1114 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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 [2022-04-05 04:10:56,385 INFO L914 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] [2022-04-05 04:10:56,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-04-05 04:10:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 736. [2022-04-05 04:10:56,398 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) [2022-04-05 04:10:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1029 transitions. [2022-04-05 04:10:56,400 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1029 transitions. Word has length 39 [2022-04-05 04:10:56,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:56,400 INFO L478 AbstractCegarLoop]: Abstraction has 736 states and 1029 transitions. [2022-04-05 04:10:56,400 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) [2022-04-05 04:10:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1029 transitions. [2022-04-05 04:10:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-04-05 04:10:56,401 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:56,401 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:56,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:10:56,402 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:56,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1528829481, now seen corresponding path program 1 times [2022-04-05 04:10:56,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:56,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739765958] [2022-04-05 04:10:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:56,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:56,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739765958] [2022-04-05 04:10:56,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739765958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:56,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:56,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:10:56,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442195034] [2022-04-05 04:10:56,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:56,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:10:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:10:56,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:10:56,512 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) [2022-04-05 04:10:57,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:57,644 INFO L93 Difference]: Finished difference Result 959 states and 1380 transitions. [2022-04-05 04:10:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:10:57,645 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 [2022-04-05 04:10:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:57,648 INFO L225 Difference]: With dead ends: 959 [2022-04-05 04:10:57,648 INFO L226 Difference]: Without dead ends: 959 [2022-04-05 04:10:57,648 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:10:57,649 INFO L913 BasicCegarLoop]: 672 mSDtfsCounter, 1857 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:57,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1865 Valid, 754 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:10:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-04-05 04:10:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 762. [2022-04-05 04:10:57,679 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) [2022-04-05 04:10:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1064 transitions. [2022-04-05 04:10:57,681 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1064 transitions. Word has length 40 [2022-04-05 04:10:57,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:57,688 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1064 transitions. [2022-04-05 04:10:57,689 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) [2022-04-05 04:10:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1064 transitions. [2022-04-05 04:10:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-04-05 04:10:57,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:57,704 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:57,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:10:57,705 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:57,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash 689414503, now seen corresponding path program 1 times [2022-04-05 04:10:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:57,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080988711] [2022-04-05 04:10:57,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:57,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-04-05 04:10:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:57,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080988711] [2022-04-05 04:10:57,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080988711] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:57,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:57,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:10:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602420364] [2022-04-05 04:10:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:57,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:10:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:10:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:10:57,851 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) [2022-04-05 04:10:59,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:10:59,179 INFO L93 Difference]: Finished difference Result 942 states and 1357 transitions. [2022-04-05 04:10:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:10:59,180 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 [2022-04-05 04:10:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:10:59,194 INFO L225 Difference]: With dead ends: 942 [2022-04-05 04:10:59,194 INFO L226 Difference]: Without dead ends: 942 [2022-04-05 04:10:59,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:10:59,267 INFO L913 BasicCegarLoop]: 791 mSDtfsCounter, 936 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:10:59,268 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 1318 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:10:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-04-05 04:10:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 762. [2022-04-05 04:10:59,295 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) [2022-04-05 04:10:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1063 transitions. [2022-04-05 04:10:59,297 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1063 transitions. Word has length 46 [2022-04-05 04:10:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:10:59,298 INFO L478 AbstractCegarLoop]: Abstraction has 762 states and 1063 transitions. [2022-04-05 04:10:59,298 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) [2022-04-05 04:10:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1063 transitions. [2022-04-05 04:10:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-05 04:10:59,300 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:10:59,300 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:10:59,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:10:59,300 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:10:59,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:10:59,301 INFO L85 PathProgramCache]: Analyzing trace with hash -735623654, now seen corresponding path program 1 times [2022-04-05 04:10:59,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:10:59,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011207208] [2022-04-05 04:10:59,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:10:59,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:10:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:10:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:10:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:10:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-04-05 04:10:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:10:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:10:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:10:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011207208] [2022-04-05 04:10:59,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011207208] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:10:59,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:10:59,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:10:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412833978] [2022-04-05 04:10:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:10:59,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:10:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:10:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:10:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:10:59,502 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) [2022-04-05 04:11:00,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:00,588 INFO L93 Difference]: Finished difference Result 897 states and 1299 transitions. [2022-04-05 04:11:00,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:11:00,588 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 [2022-04-05 04:11:00,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:00,591 INFO L225 Difference]: With dead ends: 897 [2022-04-05 04:11:00,592 INFO L226 Difference]: Without dead ends: 897 [2022-04-05 04:11:00,592 INFO L912 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 [2022-04-05 04:11:00,593 INFO L913 BasicCegarLoop]: 667 mSDtfsCounter, 1507 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:00,593 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 1140 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-04-05 04:11:00,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 751. [2022-04-05 04:11:00,605 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) [2022-04-05 04:11:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1050 transitions. [2022-04-05 04:11:00,607 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1050 transitions. Word has length 47 [2022-04-05 04:11:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:00,607 INFO L478 AbstractCegarLoop]: Abstraction has 751 states and 1050 transitions. [2022-04-05 04:11:00,608 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) [2022-04-05 04:11:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1050 transitions. [2022-04-05 04:11:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-05 04:11:00,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:00,609 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:00,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:11:00,609 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:00,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1452242056, now seen corresponding path program 1 times [2022-04-05 04:11:00,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:00,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64185373] [2022-04-05 04:11:00,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:00,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:00,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64185373] [2022-04-05 04:11:00,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64185373] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:00,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:00,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595816788] [2022-04-05 04:11:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:00,755 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:00,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:00,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:00,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:00,756 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) [2022-04-05 04:11:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:02,936 INFO L93 Difference]: Finished difference Result 1006 states and 1439 transitions. [2022-04-05 04:11:02,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:11:02,936 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 [2022-04-05 04:11:02,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:02,946 INFO L225 Difference]: With dead ends: 1006 [2022-04-05 04:11:02,947 INFO L226 Difference]: Without dead ends: 1006 [2022-04-05 04:11:02,948 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-04-05 04:11:02,959 INFO L913 BasicCegarLoop]: 754 mSDtfsCounter, 1443 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:02,959 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2000 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-05 04:11:02,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-04-05 04:11:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 794. [2022-04-05 04:11:03,000 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) [2022-04-05 04:11:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1111 transitions. [2022-04-05 04:11:03,002 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1111 transitions. Word has length 48 [2022-04-05 04:11:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:03,002 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1111 transitions. [2022-04-05 04:11:03,002 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) [2022-04-05 04:11:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1111 transitions. [2022-04-05 04:11:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:11:03,003 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:03,004 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:03,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:11:03,004 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1568241764, now seen corresponding path program 1 times [2022-04-05 04:11:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:03,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057431815] [2022-04-05 04:11:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:03,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:03,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:03,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057431815] [2022-04-05 04:11:03,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057431815] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:03,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:03,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:03,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221732327] [2022-04-05 04:11:03,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:03,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:03,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:03,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:03,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:03,173 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) [2022-04-05 04:11:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:05,115 INFO L93 Difference]: Finished difference Result 924 states and 1335 transitions. [2022-04-05 04:11:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:11:05,116 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 [2022-04-05 04:11:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:05,118 INFO L225 Difference]: With dead ends: 924 [2022-04-05 04:11:05,119 INFO L226 Difference]: Without dead ends: 924 [2022-04-05 04:11:05,119 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:11:05,119 INFO L913 BasicCegarLoop]: 652 mSDtfsCounter, 1534 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:05,119 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 1454 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:05,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-04-05 04:11:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 797. [2022-04-05 04:11:05,130 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) [2022-04-05 04:11:05,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1115 transitions. [2022-04-05 04:11:05,135 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1115 transitions. Word has length 50 [2022-04-05 04:11:05,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:05,135 INFO L478 AbstractCegarLoop]: Abstraction has 797 states and 1115 transitions. [2022-04-05 04:11:05,135 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) [2022-04-05 04:11:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1115 transitions. [2022-04-05 04:11:05,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:11:05,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:05,137 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:05,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:11:05,137 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:05,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1729653179, now seen corresponding path program 1 times [2022-04-05 04:11:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:05,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796982385] [2022-04-05 04:11:05,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:05,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:05,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796982385] [2022-04-05 04:11:05,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796982385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:05,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:05,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:05,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363141833] [2022-04-05 04:11:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:05,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:05,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:05,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:05,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:05,319 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) [2022-04-05 04:11:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:07,275 INFO L93 Difference]: Finished difference Result 914 states and 1320 transitions. [2022-04-05 04:11:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:07,275 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 [2022-04-05 04:11:07,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:07,292 INFO L225 Difference]: With dead ends: 914 [2022-04-05 04:11:07,292 INFO L226 Difference]: Without dead ends: 914 [2022-04-05 04:11:07,292 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:07,301 INFO L913 BasicCegarLoop]: 652 mSDtfsCounter, 1576 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:07,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 1818 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-04-05 04:11:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 792. [2022-04-05 04:11:07,325 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) [2022-04-05 04:11:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1105 transitions. [2022-04-05 04:11:07,327 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1105 transitions. Word has length 50 [2022-04-05 04:11:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:07,328 INFO L478 AbstractCegarLoop]: Abstraction has 792 states and 1105 transitions. [2022-04-05 04:11:07,328 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) [2022-04-05 04:11:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1105 transitions. [2022-04-05 04:11:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:11:07,330 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:07,330 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:07,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:11:07,330 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:07,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash -111891045, now seen corresponding path program 1 times [2022-04-05 04:11:07,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:07,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073456544] [2022-04-05 04:11:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:07,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:07,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:07,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073456544] [2022-04-05 04:11:07,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073456544] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:07,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:07,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:11:07,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111998049] [2022-04-05 04:11:07,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:07,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:11:07,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:07,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:11:07,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:11:07,457 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) [2022-04-05 04:11:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:09,678 INFO L93 Difference]: Finished difference Result 1074 states and 1532 transitions. [2022-04-05 04:11:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:11:09,679 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 [2022-04-05 04:11:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:09,683 INFO L225 Difference]: With dead ends: 1074 [2022-04-05 04:11:09,683 INFO L226 Difference]: Without dead ends: 1074 [2022-04-05 04:11:09,683 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:09,684 INFO L913 BasicCegarLoop]: 783 mSDtfsCounter, 523 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:09,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1332 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-05 04:11:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-04-05 04:11:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 848. [2022-04-05 04:11:09,728 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) [2022-04-05 04:11:09,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1165 transitions. [2022-04-05 04:11:09,736 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1165 transitions. Word has length 50 [2022-04-05 04:11:09,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:09,736 INFO L478 AbstractCegarLoop]: Abstraction has 848 states and 1165 transitions. [2022-04-05 04:11:09,736 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) [2022-04-05 04:11:09,736 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1165 transitions. [2022-04-05 04:11:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-04-05 04:11:09,737 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:09,737 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:09,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:11:09,738 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:09,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1040673977, now seen corresponding path program 1 times [2022-04-05 04:11:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:09,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308702039] [2022-04-05 04:11:09,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:09,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-04-05 04:11:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-04-05 04:11:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:09,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:09,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308702039] [2022-04-05 04:11:09,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308702039] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:09,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:09,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294021314] [2022-04-05 04:11:09,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:09,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:09,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:09,989 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) [2022-04-05 04:11:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:11,678 INFO L93 Difference]: Finished difference Result 937 states and 1338 transitions. [2022-04-05 04:11:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:11,679 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 [2022-04-05 04:11:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:11,697 INFO L225 Difference]: With dead ends: 937 [2022-04-05 04:11:11,697 INFO L226 Difference]: Without dead ends: 937 [2022-04-05 04:11:11,699 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:11,699 INFO L913 BasicCegarLoop]: 641 mSDtfsCounter, 1355 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:11,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 1153 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:11:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2022-04-05 04:11:11,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 817. [2022-04-05 04:11:11,726 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) [2022-04-05 04:11:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1125 transitions. [2022-04-05 04:11:11,727 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1125 transitions. Word has length 54 [2022-04-05 04:11:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:11,727 INFO L478 AbstractCegarLoop]: Abstraction has 817 states and 1125 transitions. [2022-04-05 04:11:11,727 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) [2022-04-05 04:11:11,728 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1125 transitions. [2022-04-05 04:11:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:11,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:11,729 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:11,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:11:11,729 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:11,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1255093406, now seen corresponding path program 1 times [2022-04-05 04:11:11,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:11,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860271812] [2022-04-05 04:11:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:11,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:12,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:12,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860271812] [2022-04-05 04:11:12,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860271812] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:12,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:12,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:11:12,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908785724] [2022-04-05 04:11:12,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:12,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:11:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:11:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:11:12,156 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) [2022-04-05 04:11:13,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:13,533 INFO L93 Difference]: Finished difference Result 960 states and 1364 transitions. [2022-04-05 04:11:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:11:13,533 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 [2022-04-05 04:11:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:13,536 INFO L225 Difference]: With dead ends: 960 [2022-04-05 04:11:13,536 INFO L226 Difference]: Without dead ends: 960 [2022-04-05 04:11:13,536 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:13,537 INFO L913 BasicCegarLoop]: 694 mSDtfsCounter, 1541 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:13,537 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 1365 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-05 04:11:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-04-05 04:11:13,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 836. [2022-04-05 04:11:13,549 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) [2022-04-05 04:11:13,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2022-04-05 04:11:13,550 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 52 [2022-04-05 04:11:13,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:13,551 INFO L478 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2022-04-05 04:11:13,551 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) [2022-04-05 04:11:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2022-04-05 04:11:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:11:13,552 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:13,552 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:13,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:11:13,552 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 856883353, now seen corresponding path program 1 times [2022-04-05 04:11:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:13,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483787322] [2022-04-05 04:11:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:13,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:13,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:13,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483787322] [2022-04-05 04:11:13,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483787322] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:13,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:13,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:13,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416396059] [2022-04-05 04:11:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:13,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:13,723 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) [2022-04-05 04:11:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:15,823 INFO L93 Difference]: Finished difference Result 978 states and 1385 transitions. [2022-04-05 04:11:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:15,824 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 [2022-04-05 04:11:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:15,826 INFO L225 Difference]: With dead ends: 978 [2022-04-05 04:11:15,826 INFO L226 Difference]: Without dead ends: 977 [2022-04-05 04:11:15,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:11:15,827 INFO L913 BasicCegarLoop]: 707 mSDtfsCounter, 724 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 4261 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 4261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:15,827 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 2472 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 4261 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-05 04:11:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-04-05 04:11:15,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 855. [2022-04-05 04:11:15,856 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) [2022-04-05 04:11:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1169 transitions. [2022-04-05 04:11:15,857 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1169 transitions. Word has length 51 [2022-04-05 04:11:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:15,858 INFO L478 AbstractCegarLoop]: Abstraction has 855 states and 1169 transitions. [2022-04-05 04:11:15,863 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) [2022-04-05 04:11:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1169 transitions. [2022-04-05 04:11:15,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:11:15,864 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:15,864 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:15,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:11:15,867 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 856915097, now seen corresponding path program 1 times [2022-04-05 04:11:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:15,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484649718] [2022-04-05 04:11:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:16,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:16,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484649718] [2022-04-05 04:11:16,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484649718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:16,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:16,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:16,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870817422] [2022-04-05 04:11:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:16,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:16,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:16,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:16,030 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) [2022-04-05 04:11:17,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:17,909 INFO L93 Difference]: Finished difference Result 987 states and 1396 transitions. [2022-04-05 04:11:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:11:17,909 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 [2022-04-05 04:11:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:17,912 INFO L225 Difference]: With dead ends: 987 [2022-04-05 04:11:17,913 INFO L226 Difference]: Without dead ends: 966 [2022-04-05 04:11:17,913 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:17,913 INFO L913 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 [2022-04-05 04:11:17,913 INFO L914 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] [2022-04-05 04:11:17,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-04-05 04:11:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 842. [2022-04-05 04:11:17,924 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) [2022-04-05 04:11:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1155 transitions. [2022-04-05 04:11:17,926 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1155 transitions. Word has length 51 [2022-04-05 04:11:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:17,926 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1155 transitions. [2022-04-05 04:11:17,926 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) [2022-04-05 04:11:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1155 transitions. [2022-04-05 04:11:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-05 04:11:17,930 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:17,930 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:17,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:11:17,930 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash -222651470, now seen corresponding path program 1 times [2022-04-05 04:11:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:17,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409170530] [2022-04-05 04:11:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:18,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:18,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409170530] [2022-04-05 04:11:18,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409170530] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:18,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:18,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:11:18,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993678496] [2022-04-05 04:11:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:18,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:11:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:18,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:11:18,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:18,177 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) [2022-04-05 04:11:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:19,888 INFO L93 Difference]: Finished difference Result 968 states and 1372 transitions. [2022-04-05 04:11:19,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:19,888 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 [2022-04-05 04:11:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:19,891 INFO L225 Difference]: With dead ends: 968 [2022-04-05 04:11:19,891 INFO L226 Difference]: Without dead ends: 968 [2022-04-05 04:11:19,891 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:19,892 INFO L913 BasicCegarLoop]: 659 mSDtfsCounter, 1967 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:19,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 1442 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-05 04:11:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-05 04:11:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 842. [2022-04-05 04:11:19,903 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) [2022-04-05 04:11:19,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1154 transitions. [2022-04-05 04:11:19,904 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1154 transitions. Word has length 53 [2022-04-05 04:11:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:19,904 INFO L478 AbstractCegarLoop]: Abstraction has 842 states and 1154 transitions. [2022-04-05 04:11:19,904 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) [2022-04-05 04:11:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1154 transitions. [2022-04-05 04:11:19,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:19,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:19,906 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:19,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:11:19,906 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash 179775437, now seen corresponding path program 1 times [2022-04-05 04:11:19,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:19,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112175435] [2022-04-05 04:11:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:20,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:20,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112175435] [2022-04-05 04:11:20,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112175435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:20,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:20,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:11:20,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835952409] [2022-04-05 04:11:20,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:20,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:11:20,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:20,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:11:20,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:11:20,052 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) [2022-04-05 04:11:21,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:21,956 INFO L93 Difference]: Finished difference Result 975 states and 1378 transitions. [2022-04-05 04:11:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:21,957 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 [2022-04-05 04:11:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:21,974 INFO L225 Difference]: With dead ends: 975 [2022-04-05 04:11:21,974 INFO L226 Difference]: Without dead ends: 943 [2022-04-05 04:11:21,975 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:11:21,991 INFO L913 BasicCegarLoop]: 659 mSDtfsCounter, 1246 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:21,992 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 1266 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:11:21,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-04-05 04:11:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 815. [2022-04-05 04:11:22,010 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) [2022-04-05 04:11:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1124 transitions. [2022-04-05 04:11:22,011 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1124 transitions. Word has length 52 [2022-04-05 04:11:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:22,011 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1124 transitions. [2022-04-05 04:11:22,011 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) [2022-04-05 04:11:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1124 transitions. [2022-04-05 04:11:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-04-05 04:11:22,013 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:22,013 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:22,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:11:22,013 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash 760121073, now seen corresponding path program 1 times [2022-04-05 04:11:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:22,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648573298] [2022-04-05 04:11:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:22,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:22,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648573298] [2022-04-05 04:11:22,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648573298] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:22,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:22,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:11:22,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366528690] [2022-04-05 04:11:22,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:22,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:11:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:11:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:22,246 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) [2022-04-05 04:11:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:23,331 INFO L93 Difference]: Finished difference Result 939 states and 1339 transitions. [2022-04-05 04:11:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:23,331 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 [2022-04-05 04:11:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:23,334 INFO L225 Difference]: With dead ends: 939 [2022-04-05 04:11:23,334 INFO L226 Difference]: Without dead ends: 939 [2022-04-05 04:11:23,334 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:23,336 INFO L913 BasicCegarLoop]: 630 mSDtfsCounter, 2257 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:23,336 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 1183 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-04-05 04:11:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 815. [2022-04-05 04:11:23,369 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) [2022-04-05 04:11:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1123 transitions. [2022-04-05 04:11:23,370 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1123 transitions. Word has length 54 [2022-04-05 04:11:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:23,370 INFO L478 AbstractCegarLoop]: Abstraction has 815 states and 1123 transitions. [2022-04-05 04:11:23,370 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) [2022-04-05 04:11:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1123 transitions. [2022-04-05 04:11:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-04-05 04:11:23,372 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:23,372 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:23,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:11:23,372 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1504848646, now seen corresponding path program 1 times [2022-04-05 04:11:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597857323] [2022-04-05 04:11:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:23,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:23,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597857323] [2022-04-05 04:11:23,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597857323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:23,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:23,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-05 04:11:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878562712] [2022-04-05 04:11:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:23,583 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-05 04:11:23,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-05 04:11:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:11:23,586 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) [2022-04-05 04:11:25,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:25,440 INFO L93 Difference]: Finished difference Result 963 states and 1369 transitions. [2022-04-05 04:11:25,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:11:25,441 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 [2022-04-05 04:11:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:25,456 INFO L225 Difference]: With dead ends: 963 [2022-04-05 04:11:25,456 INFO L226 Difference]: Without dead ends: 926 [2022-04-05 04:11:25,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:11:25,472 INFO L913 BasicCegarLoop]: 678 mSDtfsCounter, 389 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 5400 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 5564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 5400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:25,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 2701 Invalid, 5564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 5400 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-04-05 04:11:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 806. [2022-04-05 04:11:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 644 states have internal predecessors, (856), 107 states have call successors, (107), 49 states have call predecessors, (107), 67 states have return successors, (136), 119 states have call predecessors, (136), 100 states have call successors, (136) [2022-04-05 04:11:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1099 transitions. [2022-04-05 04:11:25,485 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1099 transitions. Word has length 55 [2022-04-05 04:11:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:25,485 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1099 transitions. [2022-04-05 04:11:25,485 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) [2022-04-05 04:11:25,485 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1099 transitions. [2022-04-05 04:11:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-05 04:11:25,501 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:25,501 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:25,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:11:25,502 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash -755849646, now seen corresponding path program 1 times [2022-04-05 04:11:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761985494] [2022-04-05 04:11:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-04-05 04:11:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:25,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761985494] [2022-04-05 04:11:25,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761985494] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:25,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:25,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-05 04:11:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455675808] [2022-04-05 04:11:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:25,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-05 04:11:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-05 04:11:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:11:25,723 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) [2022-04-05 04:11:27,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:27,496 INFO L93 Difference]: Finished difference Result 939 states and 1323 transitions. [2022-04-05 04:11:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:27,497 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 [2022-04-05 04:11:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:27,499 INFO L225 Difference]: With dead ends: 939 [2022-04-05 04:11:27,499 INFO L226 Difference]: Without dead ends: 924 [2022-04-05 04:11:27,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:27,500 INFO L913 BasicCegarLoop]: 660 mSDtfsCounter, 671 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:27,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 2617 Invalid, 4609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-04-05 04:11:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 804. [2022-04-05 04:11:27,524 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) [2022-04-05 04:11:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1095 transitions. [2022-04-05 04:11:27,526 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1095 transitions. Word has length 56 [2022-04-05 04:11:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:27,527 INFO L478 AbstractCegarLoop]: Abstraction has 804 states and 1095 transitions. [2022-04-05 04:11:27,527 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) [2022-04-05 04:11:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1095 transitions. [2022-04-05 04:11:27,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-04-05 04:11:27,532 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:27,532 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:27,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:11:27,532 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:27,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:27,532 INFO L85 PathProgramCache]: Analyzing trace with hash -303401055, now seen corresponding path program 1 times [2022-04-05 04:11:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:27,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124042715] [2022-04-05 04:11:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-04-05 04:11:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:27,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:27,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124042715] [2022-04-05 04:11:27,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124042715] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:27,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:27,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-05 04:11:27,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161479574] [2022-04-05 04:11:27,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:27,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-05 04:11:27,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-05 04:11:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:11:27,731 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) [2022-04-05 04:11:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:29,923 INFO L93 Difference]: Finished difference Result 934 states and 1316 transitions. [2022-04-05 04:11:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:29,923 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 [2022-04-05 04:11:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:29,928 INFO L225 Difference]: With dead ends: 934 [2022-04-05 04:11:29,928 INFO L226 Difference]: Without dead ends: 919 [2022-04-05 04:11:29,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:29,930 INFO L913 BasicCegarLoop]: 657 mSDtfsCounter, 669 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 4646 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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 [2022-04-05 04:11:29,930 INFO L914 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] [2022-04-05 04:11:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-04-05 04:11:29,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 799. [2022-04-05 04:11:29,966 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) [2022-04-05 04:11:29,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1088 transitions. [2022-04-05 04:11:29,967 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1088 transitions. Word has length 55 [2022-04-05 04:11:29,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:29,968 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1088 transitions. [2022-04-05 04:11:29,968 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) [2022-04-05 04:11:29,968 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1088 transitions. [2022-04-05 04:11:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-05 04:11:29,969 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:29,969 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:29,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:11:29,969 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1335002991, now seen corresponding path program 1 times [2022-04-05 04:11:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:29,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777248799] [2022-04-05 04:11:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:29,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:11:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:11:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:30,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777248799] [2022-04-05 04:11:30,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777248799] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:30,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:30,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298962906] [2022-04-05 04:11:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:30,202 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:30,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:30,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:30,202 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) [2022-04-05 04:11:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:31,685 INFO L93 Difference]: Finished difference Result 941 states and 1319 transitions. [2022-04-05 04:11:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:31,685 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 [2022-04-05 04:11:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:31,689 INFO L225 Difference]: With dead ends: 941 [2022-04-05 04:11:31,689 INFO L226 Difference]: Without dead ends: 941 [2022-04-05 04:11:31,689 INFO L912 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 [2022-04-05 04:11:31,690 INFO L913 BasicCegarLoop]: 678 mSDtfsCounter, 1525 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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 [2022-04-05 04:11:31,690 INFO L914 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] [2022-04-05 04:11:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-04-05 04:11:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 799. [2022-04-05 04:11:31,699 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) [2022-04-05 04:11:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1087 transitions. [2022-04-05 04:11:31,702 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1087 transitions. Word has length 56 [2022-04-05 04:11:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:31,702 INFO L478 AbstractCegarLoop]: Abstraction has 799 states and 1087 transitions. [2022-04-05 04:11:31,702 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) [2022-04-05 04:11:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1087 transitions. [2022-04-05 04:11:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-05 04:11:31,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:31,704 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:31,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:11:31,704 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1948386428, now seen corresponding path program 1 times [2022-04-05 04:11:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:31,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4444904] [2022-04-05 04:11:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-04-05 04:11:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:31,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:31,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4444904] [2022-04-05 04:11:31,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4444904] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:31,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:31,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:31,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955610382] [2022-04-05 04:11:31,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:31,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:31,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:31,830 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) [2022-04-05 04:11:33,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:33,052 INFO L93 Difference]: Finished difference Result 1023 states and 1421 transitions. [2022-04-05 04:11:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:33,056 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 [2022-04-05 04:11:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:33,059 INFO L225 Difference]: With dead ends: 1023 [2022-04-05 04:11:33,059 INFO L226 Difference]: Without dead ends: 1023 [2022-04-05 04:11:33,059 INFO L912 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 [2022-04-05 04:11:33,059 INFO L913 BasicCegarLoop]: 663 mSDtfsCounter, 690 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:33,060 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1241 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-04-05 04:11:33,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 840. [2022-04-05 04:11:33,069 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) [2022-04-05 04:11:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1127 transitions. [2022-04-05 04:11:33,070 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1127 transitions. Word has length 61 [2022-04-05 04:11:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:33,071 INFO L478 AbstractCegarLoop]: Abstraction has 840 states and 1127 transitions. [2022-04-05 04:11:33,071 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) [2022-04-05 04:11:33,071 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1127 transitions. [2022-04-05 04:11:33,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-05 04:11:33,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:33,072 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:33,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:11:33,072 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:33,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1337798748, now seen corresponding path program 1 times [2022-04-05 04:11:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:33,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836591395] [2022-04-05 04:11:33,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-05 04:11:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:33,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:33,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836591395] [2022-04-05 04:11:33,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836591395] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:33,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:33,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-04-05 04:11:33,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053662065] [2022-04-05 04:11:33,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:33,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-05 04:11:33,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-05 04:11:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:33,474 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) [2022-04-05 04:11:36,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:36,470 INFO L93 Difference]: Finished difference Result 1005 states and 1396 transitions. [2022-04-05 04:11:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-05 04:11:36,483 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 [2022-04-05 04:11:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:36,485 INFO L225 Difference]: With dead ends: 1005 [2022-04-05 04:11:36,485 INFO L226 Difference]: Without dead ends: 984 [2022-04-05 04:11:36,486 INFO L912 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 [2022-04-05 04:11:36,486 INFO L913 BasicCegarLoop]: 655 mSDtfsCounter, 1023 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 6167 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 6597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 6167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:36,486 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 3228 Invalid, 6597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [430 Valid, 6167 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-05 04:11:36,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-04-05 04:11:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 838. [2022-04-05 04:11:36,500 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) [2022-04-05 04:11:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1123 transitions. [2022-04-05 04:11:36,501 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1123 transitions. Word has length 62 [2022-04-05 04:11:36,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:36,501 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1123 transitions. [2022-04-05 04:11:36,502 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) [2022-04-05 04:11:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1123 transitions. [2022-04-05 04:11:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-05 04:11:36,505 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:36,506 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:36,506 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:11:36,506 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:36,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1214008405, now seen corresponding path program 1 times [2022-04-05 04:11:36,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:36,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897805649] [2022-04-05 04:11:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:36,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:36,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:36,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897805649] [2022-04-05 04:11:36,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897805649] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:36,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:36,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-04-05 04:11:36,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734978929] [2022-04-05 04:11:36,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:36,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-05 04:11:36,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-05 04:11:36,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:36,743 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) [2022-04-05 04:11:39,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:39,633 INFO L93 Difference]: Finished difference Result 1003 states and 1392 transitions. [2022-04-05 04:11:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-05 04:11:39,633 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 [2022-04-05 04:11:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:39,636 INFO L225 Difference]: With dead ends: 1003 [2022-04-05 04:11:39,636 INFO L226 Difference]: Without dead ends: 980 [2022-04-05 04:11:39,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-04-05 04:11:39,640 INFO L913 BasicCegarLoop]: 634 mSDtfsCounter, 1005 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 6738 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 6738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:39,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1009 Valid, 3435 Invalid, 7158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 6738 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 04:11:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-04-05 04:11:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 837. [2022-04-05 04:11:39,669 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) [2022-04-05 04:11:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1112 transitions. [2022-04-05 04:11:39,670 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1112 transitions. Word has length 59 [2022-04-05 04:11:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:39,670 INFO L478 AbstractCegarLoop]: Abstraction has 837 states and 1112 transitions. [2022-04-05 04:11:39,670 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) [2022-04-05 04:11:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1112 transitions. [2022-04-05 04:11:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-04-05 04:11:39,671 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:39,671 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:39,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:11:39,672 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash -55485367, now seen corresponding path program 1 times [2022-04-05 04:11:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:39,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640849073] [2022-04-05 04:11:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:39,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:39,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640849073] [2022-04-05 04:11:39,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640849073] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:39,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:39,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:11:39,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859320781] [2022-04-05 04:11:39,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:39,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:11:39,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:39,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:11:39,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:39,941 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) [2022-04-05 04:11:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:42,329 INFO L93 Difference]: Finished difference Result 992 states and 1366 transitions. [2022-04-05 04:11:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-05 04:11:42,330 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 [2022-04-05 04:11:42,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:42,332 INFO L225 Difference]: With dead ends: 992 [2022-04-05 04:11:42,332 INFO L226 Difference]: Without dead ends: 975 [2022-04-05 04:11:42,332 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-04-05 04:11:42,332 INFO L913 BasicCegarLoop]: 649 mSDtfsCounter, 1249 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 5378 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:42,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2952 Invalid, 5895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 5378 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:11:42,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-04-05 04:11:42,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 834. [2022-04-05 04:11:42,342 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) [2022-04-05 04:11:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1107 transitions. [2022-04-05 04:11:42,344 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1107 transitions. Word has length 58 [2022-04-05 04:11:42,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:42,344 INFO L478 AbstractCegarLoop]: Abstraction has 834 states and 1107 transitions. [2022-04-05 04:11:42,344 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) [2022-04-05 04:11:42,344 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1107 transitions. [2022-04-05 04:11:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:11:42,346 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:42,346 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:42,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:11:42,347 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash -57775299, now seen corresponding path program 1 times [2022-04-05 04:11:42,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:42,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087547285] [2022-04-05 04:11:42,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:42,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 04:11:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:42,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:42,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087547285] [2022-04-05 04:11:42,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087547285] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:42,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:42,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:42,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652686419] [2022-04-05 04:11:42,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:42,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:42,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:42,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:42,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:42,481 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) [2022-04-05 04:11:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:43,785 INFO L93 Difference]: Finished difference Result 1036 states and 1451 transitions. [2022-04-05 04:11:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:11:43,787 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 [2022-04-05 04:11:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:43,789 INFO L225 Difference]: With dead ends: 1036 [2022-04-05 04:11:43,789 INFO L226 Difference]: Without dead ends: 1036 [2022-04-05 04:11:43,789 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:11:43,789 INFO L913 BasicCegarLoop]: 628 mSDtfsCounter, 1326 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:43,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 1630 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:11:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-04-05 04:11:43,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 841. [2022-04-05 04:11:43,825 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) [2022-04-05 04:11:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1122 transitions. [2022-04-05 04:11:43,826 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1122 transitions. Word has length 60 [2022-04-05 04:11:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:43,826 INFO L478 AbstractCegarLoop]: Abstraction has 841 states and 1122 transitions. [2022-04-05 04:11:43,827 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) [2022-04-05 04:11:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1122 transitions. [2022-04-05 04:11:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:11:43,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:43,829 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:43,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:11:43,829 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:43,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2067879140, now seen corresponding path program 1 times [2022-04-05 04:11:43,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:43,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181454519] [2022-04-05 04:11:43,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:43,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 04:11:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:44,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:44,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181454519] [2022-04-05 04:11:44,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181454519] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:44,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:44,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:11:44,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178969262] [2022-04-05 04:11:44,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:44,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:11:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:44,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:11:44,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:44,310 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) [2022-04-05 04:11:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:46,105 INFO L93 Difference]: Finished difference Result 1005 states and 1397 transitions. [2022-04-05 04:11:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:11:46,105 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 [2022-04-05 04:11:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:46,120 INFO L225 Difference]: With dead ends: 1005 [2022-04-05 04:11:46,121 INFO L226 Difference]: Without dead ends: 983 [2022-04-05 04:11:46,121 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:11:46,123 INFO L913 BasicCegarLoop]: 633 mSDtfsCounter, 1277 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:46,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 2653 Invalid, 4293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-04-05 04:11:46,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 839. [2022-04-05 04:11:46,133 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) [2022-04-05 04:11:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1118 transitions. [2022-04-05 04:11:46,134 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1118 transitions. Word has length 60 [2022-04-05 04:11:46,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:46,134 INFO L478 AbstractCegarLoop]: Abstraction has 839 states and 1118 transitions. [2022-04-05 04:11:46,134 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) [2022-04-05 04:11:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1118 transitions. [2022-04-05 04:11:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-05 04:11:46,136 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:46,136 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:46,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:11:46,136 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:46,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1557615113, now seen corresponding path program 1 times [2022-04-05 04:11:46,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:46,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240650681] [2022-04-05 04:11:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:46,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 04:11:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:46,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:46,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240650681] [2022-04-05 04:11:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240650681] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:46,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:11:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937460640] [2022-04-05 04:11:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:46,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:11:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:46,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:11:46,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:46,393 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) [2022-04-05 04:11:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:48,829 INFO L93 Difference]: Finished difference Result 1004 states and 1391 transitions. [2022-04-05 04:11:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-05 04:11:48,829 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 [2022-04-05 04:11:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:48,832 INFO L225 Difference]: With dead ends: 1004 [2022-04-05 04:11:48,832 INFO L226 Difference]: Without dead ends: 968 [2022-04-05 04:11:48,832 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-04-05 04:11:48,832 INFO L913 BasicCegarLoop]: 620 mSDtfsCounter, 660 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 4990 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 5269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:48,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 2775 Invalid, 5269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 4990 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:11:48,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-05 04:11:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 827. [2022-04-05 04:11:48,841 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) [2022-04-05 04:11:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1097 transitions. [2022-04-05 04:11:48,842 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1097 transitions. Word has length 59 [2022-04-05 04:11:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:48,843 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1097 transitions. [2022-04-05 04:11:48,843 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) [2022-04-05 04:11:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1097 transitions. [2022-04-05 04:11:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-05 04:11:48,844 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:48,844 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:48,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:11:48,844 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1192878684, now seen corresponding path program 1 times [2022-04-05 04:11:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:48,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512870872] [2022-04-05 04:11:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:11:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:49,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:49,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512870872] [2022-04-05 04:11:49,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512870872] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:49,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:49,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:49,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411299826] [2022-04-05 04:11:49,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:49,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:49,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:49,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:49,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:49,761 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) [2022-04-05 04:11:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:51,368 INFO L93 Difference]: Finished difference Result 984 states and 1386 transitions. [2022-04-05 04:11:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:51,369 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 [2022-04-05 04:11:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:51,371 INFO L225 Difference]: With dead ends: 984 [2022-04-05 04:11:51,371 INFO L226 Difference]: Without dead ends: 982 [2022-04-05 04:11:51,371 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:11:51,372 INFO L913 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, 1.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:51,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1773 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-05 04:11:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-04-05 04:11:51,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 831. [2022-04-05 04:11:51,382 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) [2022-04-05 04:11:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1115 transitions. [2022-04-05 04:11:51,384 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1115 transitions. Word has length 61 [2022-04-05 04:11:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:51,384 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1115 transitions. [2022-04-05 04:11:51,384 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) [2022-04-05 04:11:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1115 transitions. [2022-04-05 04:11:51,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:11:51,385 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:51,385 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:51,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:11:51,386 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:51,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:51,386 INFO L85 PathProgramCache]: Analyzing trace with hash 440130742, now seen corresponding path program 1 times [2022-04-05 04:11:51,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:51,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97637886] [2022-04-05 04:11:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:51,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:11:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:51,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97637886] [2022-04-05 04:11:51,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97637886] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:51,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:51,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:51,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461099591] [2022-04-05 04:11:51,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:51,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:51,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:51,537 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) [2022-04-05 04:11:52,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:52,708 INFO L93 Difference]: Finished difference Result 974 states and 1367 transitions. [2022-04-05 04:11:52,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:52,708 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 [2022-04-05 04:11:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:52,711 INFO L225 Difference]: With dead ends: 974 [2022-04-05 04:11:52,711 INFO L226 Difference]: Without dead ends: 974 [2022-04-05 04:11:52,711 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:52,711 INFO L913 BasicCegarLoop]: 607 mSDtfsCounter, 349 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:52,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1511 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-04-05 04:11:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 831. [2022-04-05 04:11:52,723 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) [2022-04-05 04:11:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1114 transitions. [2022-04-05 04:11:52,724 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1114 transitions. Word has length 60 [2022-04-05 04:11:52,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:52,724 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1114 transitions. [2022-04-05 04:11:52,724 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) [2022-04-05 04:11:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1114 transitions. [2022-04-05 04:11:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:11:52,726 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:52,726 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:52,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:11:52,726 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:52,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 185394197, now seen corresponding path program 1 times [2022-04-05 04:11:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:52,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418535750] [2022-04-05 04:11:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:11:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:52,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:52,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418535750] [2022-04-05 04:11:52,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418535750] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:52,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:52,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:11:52,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828127312] [2022-04-05 04:11:52,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:52,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:11:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:11:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:52,942 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) [2022-04-05 04:11:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:55,048 INFO L93 Difference]: Finished difference Result 1010 states and 1414 transitions. [2022-04-05 04:11:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-05 04:11:55,049 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 [2022-04-05 04:11:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:55,051 INFO L225 Difference]: With dead ends: 1010 [2022-04-05 04:11:55,051 INFO L226 Difference]: Without dead ends: 961 [2022-04-05 04:11:55,052 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-04-05 04:11:55,052 INFO L913 BasicCegarLoop]: 608 mSDtfsCounter, 1261 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 4079 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 4592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 4079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:55,052 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2519 Invalid, 4592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 4079 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-05 04:11:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-04-05 04:11:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 823. [2022-04-05 04:11:55,062 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) [2022-04-05 04:11:55,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1099 transitions. [2022-04-05 04:11:55,064 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1099 transitions. Word has length 60 [2022-04-05 04:11:55,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:55,064 INFO L478 AbstractCegarLoop]: Abstraction has 823 states and 1099 transitions. [2022-04-05 04:11:55,065 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) [2022-04-05 04:11:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1099 transitions. [2022-04-05 04:11:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:11:55,066 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:55,066 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:55,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:11:55,066 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:55,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1158774888, now seen corresponding path program 1 times [2022-04-05 04:11:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921787576] [2022-04-05 04:11:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:11:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:55,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:55,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921787576] [2022-04-05 04:11:55,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921787576] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:55,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:55,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-05 04:11:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865031781] [2022-04-05 04:11:55,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:55,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-05 04:11:55,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:55,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-05 04:11:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:11:55,277 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) [2022-04-05 04:11:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:57,277 INFO L93 Difference]: Finished difference Result 975 states and 1357 transitions. [2022-04-05 04:11:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:11:57,277 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 [2022-04-05 04:11:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:57,279 INFO L225 Difference]: With dead ends: 975 [2022-04-05 04:11:57,279 INFO L226 Difference]: Without dead ends: 956 [2022-04-05 04:11:57,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-04-05 04:11:57,280 INFO L913 BasicCegarLoop]: 597 mSDtfsCounter, 1168 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 5487 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:57,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 3188 Invalid, 5966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 5487 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-05 04:11:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-04-05 04:11:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 818. [2022-04-05 04:11:57,289 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) [2022-04-05 04:11:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1092 transitions. [2022-04-05 04:11:57,290 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1092 transitions. Word has length 63 [2022-04-05 04:11:57,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:57,291 INFO L478 AbstractCegarLoop]: Abstraction has 818 states and 1092 transitions. [2022-04-05 04:11:57,291 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) [2022-04-05 04:11:57,291 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1092 transitions. [2022-04-05 04:11:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-05 04:11:57,292 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:57,292 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:57,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:11:57,292 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1342281155, now seen corresponding path program 1 times [2022-04-05 04:11:57,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:57,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457471407] [2022-04-05 04:11:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:57,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:57,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457471407] [2022-04-05 04:11:57,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457471407] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:57,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:57,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-05 04:11:57,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659338703] [2022-04-05 04:11:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:57,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-05 04:11:57,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-05 04:11:57,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:11:57,520 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) [2022-04-05 04:11:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:59,267 INFO L93 Difference]: Finished difference Result 970 states and 1350 transitions. [2022-04-05 04:11:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:11:59,267 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 [2022-04-05 04:11:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:59,269 INFO L225 Difference]: With dead ends: 970 [2022-04-05 04:11:59,269 INFO L226 Difference]: Without dead ends: 951 [2022-04-05 04:11:59,269 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:11:59,270 INFO L913 BasicCegarLoop]: 593 mSDtfsCounter, 584 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 5548 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:59,270 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 3086 Invalid, 5792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 5548 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:11:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-04-05 04:11:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 813. [2022-04-05 04:11:59,279 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) [2022-04-05 04:11:59,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1085 transitions. [2022-04-05 04:11:59,280 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1085 transitions. Word has length 62 [2022-04-05 04:11:59,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:59,281 INFO L478 AbstractCegarLoop]: Abstraction has 813 states and 1085 transitions. [2022-04-05 04:11:59,281 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) [2022-04-05 04:11:59,281 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1085 transitions. [2022-04-05 04:11:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:11:59,282 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:59,282 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:59,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:11:59,283 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:59,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:59,283 INFO L85 PathProgramCache]: Analyzing trace with hash 739520085, now seen corresponding path program 1 times [2022-04-05 04:11:59,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:59,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668973770] [2022-04-05 04:11:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:59,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:11:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:11:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:59,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668973770] [2022-04-05 04:11:59,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668973770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:59,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:59,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-04-05 04:11:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601049326] [2022-04-05 04:11:59,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:59,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-05 04:11:59,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:59,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-05 04:11:59,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:59,604 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) [2022-04-05 04:12:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:01,951 INFO L93 Difference]: Finished difference Result 970 states and 1348 transitions. [2022-04-05 04:12:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-05 04:12:01,951 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 [2022-04-05 04:12:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:01,953 INFO L225 Difference]: With dead ends: 970 [2022-04-05 04:12:01,953 INFO L226 Difference]: Without dead ends: 949 [2022-04-05 04:12:01,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-04-05 04:12:01,954 INFO L913 BasicCegarLoop]: 563 mSDtfsCounter, 1181 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 5556 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 6040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 5556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:01,954 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 2958 Invalid, 6040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 5556 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-05 04:12:01,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-04-05 04:12:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 811. [2022-04-05 04:12:01,963 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) [2022-04-05 04:12:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1081 transitions. [2022-04-05 04:12:01,964 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1081 transitions. Word has length 63 [2022-04-05 04:12:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:01,965 INFO L478 AbstractCegarLoop]: Abstraction has 811 states and 1081 transitions. [2022-04-05 04:12:01,965 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) [2022-04-05 04:12:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1081 transitions. [2022-04-05 04:12:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:12:01,966 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:01,966 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:01,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:12:01,966 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:01,967 INFO L85 PathProgramCache]: Analyzing trace with hash -620638821, now seen corresponding path program 1 times [2022-04-05 04:12:01,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:01,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163072861] [2022-04-05 04:12:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:01,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:02,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:02,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163072861] [2022-04-05 04:12:02,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163072861] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:02,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:02,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027985274] [2022-04-05 04:12:02,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:02,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:02,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:02,094 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) [2022-04-05 04:12:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:02,756 INFO L93 Difference]: Finished difference Result 814 states and 1084 transitions. [2022-04-05 04:12:02,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:12:02,756 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 [2022-04-05 04:12:02,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:02,758 INFO L225 Difference]: With dead ends: 814 [2022-04-05 04:12:02,758 INFO L226 Difference]: Without dead ends: 810 [2022-04-05 04:12:02,758 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:12:02,759 INFO L913 BasicCegarLoop]: 523 mSDtfsCounter, 1153 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:02,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 1063 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-05 04:12:02,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-04-05 04:12:02,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 703. [2022-04-05 04:12:02,766 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) [2022-04-05 04:12:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 912 transitions. [2022-04-05 04:12:02,766 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 912 transitions. Word has length 63 [2022-04-05 04:12:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:02,767 INFO L478 AbstractCegarLoop]: Abstraction has 703 states and 912 transitions. [2022-04-05 04:12:02,767 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) [2022-04-05 04:12:02,767 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 912 transitions. [2022-04-05 04:12:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:12:02,768 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:02,768 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:02,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:12:02,768 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash -306718972, now seen corresponding path program 1 times [2022-04-05 04:12:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483351075] [2022-04-05 04:12:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-04-05 04:12:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:02,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:02,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483351075] [2022-04-05 04:12:02,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483351075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:02,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:02,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:12:02,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108842021] [2022-04-05 04:12:02,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:02,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:12:02,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:02,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:12:02,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:12:02,934 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) [2022-04-05 04:12:03,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:03,770 INFO L93 Difference]: Finished difference Result 775 states and 1026 transitions. [2022-04-05 04:12:03,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:12:03,771 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 [2022-04-05 04:12:03,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:03,773 INFO L225 Difference]: With dead ends: 775 [2022-04-05 04:12:03,773 INFO L226 Difference]: Without dead ends: 775 [2022-04-05 04:12:03,773 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:03,773 INFO L913 BasicCegarLoop]: 485 mSDtfsCounter, 685 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:03,773 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 867 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-04-05 04:12:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 703. [2022-04-05 04:12:03,780 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) [2022-04-05 04:12:03,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 910 transitions. [2022-04-05 04:12:03,781 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 910 transitions. Word has length 66 [2022-04-05 04:12:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:03,785 INFO L478 AbstractCegarLoop]: Abstraction has 703 states and 910 transitions. [2022-04-05 04:12:03,785 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) [2022-04-05 04:12:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 910 transitions. [2022-04-05 04:12:03,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:12:03,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:03,787 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:03,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:12:03,788 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:03,788 INFO L85 PathProgramCache]: Analyzing trace with hash 526937182, now seen corresponding path program 1 times [2022-04-05 04:12:03,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:03,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183296729] [2022-04-05 04:12:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:03,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:04,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:04,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183296729] [2022-04-05 04:12:04,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183296729] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:04,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:04,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-05 04:12:04,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025525819] [2022-04-05 04:12:04,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:04,090 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-05 04:12:04,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:04,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-05 04:12:04,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:04,090 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) [2022-04-05 04:12:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:06,091 INFO L93 Difference]: Finished difference Result 796 states and 1048 transitions. [2022-04-05 04:12:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:12:06,092 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 [2022-04-05 04:12:06,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:06,093 INFO L225 Difference]: With dead ends: 796 [2022-04-05 04:12:06,093 INFO L226 Difference]: Without dead ends: 774 [2022-04-05 04:12:06,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-04-05 04:12:06,094 INFO L913 BasicCegarLoop]: 519 mSDtfsCounter, 1436 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 5720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:06,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2865 Invalid, 5720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:12:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-04-05 04:12:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 701. [2022-04-05 04:12:06,108 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) [2022-04-05 04:12:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 906 transitions. [2022-04-05 04:12:06,109 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 906 transitions. Word has length 67 [2022-04-05 04:12:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:06,109 INFO L478 AbstractCegarLoop]: Abstraction has 701 states and 906 transitions. [2022-04-05 04:12:06,110 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) [2022-04-05 04:12:06,110 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 906 transitions. [2022-04-05 04:12:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:12:06,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:06,111 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:06,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:12:06,112 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash 459314479, now seen corresponding path program 1 times [2022-04-05 04:12:06,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:06,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097589591] [2022-04-05 04:12:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:12:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:06,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:06,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097589591] [2022-04-05 04:12:06,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097589591] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:06,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:06,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-05 04:12:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112701063] [2022-04-05 04:12:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:06,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-05 04:12:06,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-05 04:12:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:06,559 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) [2022-04-05 04:12:08,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:08,308 INFO L93 Difference]: Finished difference Result 791 states and 1039 transitions. [2022-04-05 04:12:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:12:08,309 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 [2022-04-05 04:12:08,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:08,310 INFO L225 Difference]: With dead ends: 791 [2022-04-05 04:12:08,310 INFO L226 Difference]: Without dead ends: 769 [2022-04-05 04:12:08,311 INFO L912 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 [2022-04-05 04:12:08,311 INFO L913 BasicCegarLoop]: 497 mSDtfsCounter, 344 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 5203 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 5330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 5203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:08,311 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 2485 Invalid, 5330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 5203 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:12:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-04-05 04:12:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 699. [2022-04-05 04:12:08,318 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) [2022-04-05 04:12:08,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 902 transitions. [2022-04-05 04:12:08,319 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 902 transitions. Word has length 66 [2022-04-05 04:12:08,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:08,319 INFO L478 AbstractCegarLoop]: Abstraction has 699 states and 902 transitions. [2022-04-05 04:12:08,319 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) [2022-04-05 04:12:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 902 transitions. [2022-04-05 04:12:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:12:08,320 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:08,320 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:08,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:12:08,320 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1659747958, now seen corresponding path program 1 times [2022-04-05 04:12:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352417809] [2022-04-05 04:12:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-04-05 04:12:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:08,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:08,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352417809] [2022-04-05 04:12:08,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352417809] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:08,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:08,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:08,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818243735] [2022-04-05 04:12:08,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:08,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:08,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:08,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:08,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:08,488 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) [2022-04-05 04:12:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:09,624 INFO L93 Difference]: Finished difference Result 800 states and 1053 transitions. [2022-04-05 04:12:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-05 04:12:09,624 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 [2022-04-05 04:12:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:09,626 INFO L225 Difference]: With dead ends: 800 [2022-04-05 04:12:09,626 INFO L226 Difference]: Without dead ends: 800 [2022-04-05 04:12:09,626 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:09,626 INFO L913 BasicCegarLoop]: 498 mSDtfsCounter, 780 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-04-05 04:12:09,627 INFO L914 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] [2022-04-05 04:12:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-04-05 04:12:09,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 705. [2022-04-05 04:12:09,632 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) [2022-04-05 04:12:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 910 transitions. [2022-04-05 04:12:09,633 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 910 transitions. Word has length 65 [2022-04-05 04:12:09,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:09,633 INFO L478 AbstractCegarLoop]: Abstraction has 705 states and 910 transitions. [2022-04-05 04:12:09,633 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) [2022-04-05 04:12:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 910 transitions. [2022-04-05 04:12:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:12:09,634 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:09,634 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:09,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:12:09,635 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash -697612646, now seen corresponding path program 1 times [2022-04-05 04:12:09,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:09,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745729477] [2022-04-05 04:12:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:09,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-05 04:12:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:09,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:09,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745729477] [2022-04-05 04:12:09,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745729477] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:09,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:09,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:09,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501689339] [2022-04-05 04:12:09,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:09,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:09,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:09,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:09,786 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) [2022-04-05 04:12:10,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:10,865 INFO L93 Difference]: Finished difference Result 777 states and 1020 transitions. [2022-04-05 04:12:10,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:10,865 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 [2022-04-05 04:12:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:10,867 INFO L225 Difference]: With dead ends: 777 [2022-04-05 04:12:10,867 INFO L226 Difference]: Without dead ends: 777 [2022-04-05 04:12:10,867 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:10,867 INFO L913 BasicCegarLoop]: 504 mSDtfsCounter, 615 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:10,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 1222 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:12:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-04-05 04:12:10,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 705. [2022-04-05 04:12:10,879 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) [2022-04-05 04:12:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 908 transitions. [2022-04-05 04:12:10,880 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 908 transitions. Word has length 66 [2022-04-05 04:12:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:10,880 INFO L478 AbstractCegarLoop]: Abstraction has 705 states and 908 transitions. [2022-04-05 04:12:10,880 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) [2022-04-05 04:12:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 908 transitions. [2022-04-05 04:12:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:12:10,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:10,881 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:10,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:12:10,882 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:10,882 INFO L85 PathProgramCache]: Analyzing trace with hash -346812709, now seen corresponding path program 1 times [2022-04-05 04:12:10,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:10,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80130550] [2022-04-05 04:12:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:10,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-05 04:12:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:11,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:11,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80130550] [2022-04-05 04:12:11,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80130550] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:11,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:11,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:12:11,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524360124] [2022-04-05 04:12:11,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:11,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:12:11,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:11,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:12:11,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:11,132 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) [2022-04-05 04:12:12,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:12,660 INFO L93 Difference]: Finished difference Result 799 states and 1045 transitions. [2022-04-05 04:12:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:12:12,660 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 [2022-04-05 04:12:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:12,662 INFO L225 Difference]: With dead ends: 799 [2022-04-05 04:12:12,662 INFO L226 Difference]: Without dead ends: 725 [2022-04-05 04:12:12,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:12:12,663 INFO L913 BasicCegarLoop]: 507 mSDtfsCounter, 1192 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 3754 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 4201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:12,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 2002 Invalid, 4201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 3754 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-05 04:12:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-04-05 04:12:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 668. [2022-04-05 04:12:12,668 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) [2022-04-05 04:12:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 847 transitions. [2022-04-05 04:12:12,669 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 847 transitions. Word has length 66 [2022-04-05 04:12:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:12,669 INFO L478 AbstractCegarLoop]: Abstraction has 668 states and 847 transitions. [2022-04-05 04:12:12,669 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) [2022-04-05 04:12:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 847 transitions. [2022-04-05 04:12:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:12:12,671 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:12,671 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:12,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 04:12:12,671 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 255041077, now seen corresponding path program 1 times [2022-04-05 04:12:12,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:12,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983303350] [2022-04-05 04:12:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:12,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:12,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983303350] [2022-04-05 04:12:12,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983303350] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:12,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:12,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:12,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544157501] [2022-04-05 04:12:12,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:12,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:12,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:12,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:12,816 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) [2022-04-05 04:12:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:13,885 INFO L93 Difference]: Finished difference Result 842 states and 1081 transitions. [2022-04-05 04:12:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:12:13,885 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 [2022-04-05 04:12:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:13,887 INFO L225 Difference]: With dead ends: 842 [2022-04-05 04:12:13,887 INFO L226 Difference]: Without dead ends: 842 [2022-04-05 04:12:13,887 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:13,888 INFO L913 BasicCegarLoop]: 476 mSDtfsCounter, 964 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:13,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 916 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-04-05 04:12:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 714. [2022-04-05 04:12:13,894 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) [2022-04-05 04:12:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 899 transitions. [2022-04-05 04:12:13,894 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 899 transitions. Word has length 67 [2022-04-05 04:12:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:13,895 INFO L478 AbstractCegarLoop]: Abstraction has 714 states and 899 transitions. [2022-04-05 04:12:13,895 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) [2022-04-05 04:12:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 899 transitions. [2022-04-05 04:12:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:12:13,896 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:13,896 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:13,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 04:12:13,896 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:13,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:13,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2058592464, now seen corresponding path program 1 times [2022-04-05 04:12:13,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:13,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799304199] [2022-04-05 04:12:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:13,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-05 04:12:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:14,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:14,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799304199] [2022-04-05 04:12:14,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799304199] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:14,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:14,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:14,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291923913] [2022-04-05 04:12:14,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:14,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:14,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:14,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:14,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:14,038 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) [2022-04-05 04:12:14,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:14,941 INFO L93 Difference]: Finished difference Result 765 states and 978 transitions. [2022-04-05 04:12:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:12:14,942 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 [2022-04-05 04:12:14,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:14,943 INFO L225 Difference]: With dead ends: 765 [2022-04-05 04:12:14,943 INFO L226 Difference]: Without dead ends: 760 [2022-04-05 04:12:14,943 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:12:14,944 INFO L913 BasicCegarLoop]: 451 mSDtfsCounter, 1233 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:14,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 1080 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-04-05 04:12:14,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 709. [2022-04-05 04:12:14,951 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) [2022-04-05 04:12:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 892 transitions. [2022-04-05 04:12:14,952 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 892 transitions. Word has length 67 [2022-04-05 04:12:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:14,952 INFO L478 AbstractCegarLoop]: Abstraction has 709 states and 892 transitions. [2022-04-05 04:12:14,952 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) [2022-04-05 04:12:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 892 transitions. [2022-04-05 04:12:14,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:12:14,953 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:14,953 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:14,953 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 04:12:14,954 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:14,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:14,954 INFO L85 PathProgramCache]: Analyzing trace with hash -238065346, now seen corresponding path program 1 times [2022-04-05 04:12:14,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:14,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327885656] [2022-04-05 04:12:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:14,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:15,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327885656] [2022-04-05 04:12:15,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327885656] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:15,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:15,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:15,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209069486] [2022-04-05 04:12:15,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:15,093 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:15,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:15,094 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) [2022-04-05 04:12:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:16,027 INFO L93 Difference]: Finished difference Result 763 states and 966 transitions. [2022-04-05 04:12:16,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:12:16,028 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 [2022-04-05 04:12:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:16,029 INFO L225 Difference]: With dead ends: 763 [2022-04-05 04:12:16,030 INFO L226 Difference]: Without dead ends: 746 [2022-04-05 04:12:16,030 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:16,030 INFO L913 BasicCegarLoop]: 463 mSDtfsCounter, 1100 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-04-05 04:12:16,030 INFO L914 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] [2022-04-05 04:12:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-04-05 04:12:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 690. [2022-04-05 04:12:16,036 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) [2022-04-05 04:12:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 864 transitions. [2022-04-05 04:12:16,037 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 864 transitions. Word has length 68 [2022-04-05 04:12:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:16,037 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 864 transitions. [2022-04-05 04:12:16,037 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) [2022-04-05 04:12:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 864 transitions. [2022-04-05 04:12:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:12:16,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:16,038 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:16,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 04:12:16,038 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:16,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:16,038 INFO L85 PathProgramCache]: Analyzing trace with hash -653091009, now seen corresponding path program 1 times [2022-04-05 04:12:16,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:16,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740997064] [2022-04-05 04:12:16,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:16,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:16,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740997064] [2022-04-05 04:12:16,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740997064] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:16,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:16,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608365554] [2022-04-05 04:12:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:16,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:16,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:16,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:16,210 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) [2022-04-05 04:12:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:17,712 INFO L93 Difference]: Finished difference Result 816 states and 1041 transitions. [2022-04-05 04:12:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:12:17,712 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 [2022-04-05 04:12:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:17,713 INFO L225 Difference]: With dead ends: 816 [2022-04-05 04:12:17,713 INFO L226 Difference]: Without dead ends: 816 [2022-04-05 04:12:17,714 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:12:17,714 INFO L913 BasicCegarLoop]: 472 mSDtfsCounter, 1734 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:17,714 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1741 Valid, 1014 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:12:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-04-05 04:12:17,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 690. [2022-04-05 04:12:17,720 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) [2022-04-05 04:12:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 862 transitions. [2022-04-05 04:12:17,720 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 862 transitions. Word has length 68 [2022-04-05 04:12:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:17,721 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 862 transitions. [2022-04-05 04:12:17,721 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) [2022-04-05 04:12:17,721 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 862 transitions. [2022-04-05 04:12:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-05 04:12:17,722 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:17,722 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:17,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 04:12:17,722 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1034853120, now seen corresponding path program 1 times [2022-04-05 04:12:17,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:17,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032862048] [2022-04-05 04:12:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:17,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:12:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-04-05 04:12:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:18,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032862048] [2022-04-05 04:12:18,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032862048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:18,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:18,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-05 04:12:18,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305340390] [2022-04-05 04:12:18,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:18,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-05 04:12:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:18,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-05 04:12:18,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:18,064 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) [2022-04-05 04:12:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:20,028 INFO L93 Difference]: Finished difference Result 778 states and 990 transitions. [2022-04-05 04:12:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:12:20,029 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 [2022-04-05 04:12:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:20,030 INFO L225 Difference]: With dead ends: 778 [2022-04-05 04:12:20,031 INFO L226 Difference]: Without dead ends: 756 [2022-04-05 04:12:20,032 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-04-05 04:12:20,032 INFO L913 BasicCegarLoop]: 459 mSDtfsCounter, 566 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 4735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:20,032 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 2640 Invalid, 4735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 4525 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:12:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-04-05 04:12:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 688. [2022-04-05 04:12:20,057 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) [2022-04-05 04:12:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 858 transitions. [2022-04-05 04:12:20,057 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 858 transitions. Word has length 74 [2022-04-05 04:12:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:20,058 INFO L478 AbstractCegarLoop]: Abstraction has 688 states and 858 transitions. [2022-04-05 04:12:20,058 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) [2022-04-05 04:12:20,059 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 858 transitions. [2022-04-05 04:12:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-05 04:12:20,060 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:20,060 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:20,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 04:12:20,060 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:20,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash -8057471, now seen corresponding path program 1 times [2022-04-05 04:12:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:20,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673544813] [2022-04-05 04:12:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:20,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-04-05 04:12:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:20,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673544813] [2022-04-05 04:12:20,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673544813] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:20,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:20,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-04-05 04:12:20,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320334943] [2022-04-05 04:12:20,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:20,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-04-05 04:12:20,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-04-05 04:12:20,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-04-05 04:12:20,324 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) [2022-04-05 04:12:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:22,141 INFO L93 Difference]: Finished difference Result 759 states and 958 transitions. [2022-04-05 04:12:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-05 04:12:22,141 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 [2022-04-05 04:12:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:22,160 INFO L225 Difference]: With dead ends: 759 [2022-04-05 04:12:22,160 INFO L226 Difference]: Without dead ends: 735 [2022-04-05 04:12:22,160 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2022-04-05 04:12:22,161 INFO L913 BasicCegarLoop]: 450 mSDtfsCounter, 767 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 5470 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 5755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 5470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:22,161 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 3003 Invalid, 5755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 5470 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:12:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-04-05 04:12:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 685. [2022-04-05 04:12:22,166 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) [2022-04-05 04:12:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 853 transitions. [2022-04-05 04:12:22,166 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 853 transitions. Word has length 70 [2022-04-05 04:12:22,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:22,167 INFO L478 AbstractCegarLoop]: Abstraction has 685 states and 853 transitions. [2022-04-05 04:12:22,167 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) [2022-04-05 04:12:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 853 transitions. [2022-04-05 04:12:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-04-05 04:12:22,168 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:22,168 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:22,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 04:12:22,168 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:22,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:22,169 INFO L85 PathProgramCache]: Analyzing trace with hash 226042889, now seen corresponding path program 1 times [2022-04-05 04:12:22,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:22,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152480333] [2022-04-05 04:12:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:22,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:22,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152480333] [2022-04-05 04:12:22,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152480333] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:22,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:22,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-05 04:12:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031658065] [2022-04-05 04:12:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:22,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-05 04:12:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-05 04:12:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:22,503 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) [2022-04-05 04:12:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:24,332 INFO L93 Difference]: Finished difference Result 752 states and 948 transitions. [2022-04-05 04:12:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:12:24,332 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 [2022-04-05 04:12:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:24,334 INFO L225 Difference]: With dead ends: 752 [2022-04-05 04:12:24,334 INFO L226 Difference]: Without dead ends: 733 [2022-04-05 04:12:24,334 INFO L912 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 [2022-04-05 04:12:24,334 INFO L913 BasicCegarLoop]: 450 mSDtfsCounter, 465 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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 [2022-04-05 04:12:24,334 INFO L914 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] [2022-04-05 04:12:24,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-04-05 04:12:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 683. [2022-04-05 04:12:24,340 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) [2022-04-05 04:12:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 849 transitions. [2022-04-05 04:12:24,342 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 849 transitions. Word has length 72 [2022-04-05 04:12:24,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:24,342 INFO L478 AbstractCegarLoop]: Abstraction has 683 states and 849 transitions. [2022-04-05 04:12:24,342 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) [2022-04-05 04:12:24,342 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 849 transitions. [2022-04-05 04:12:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:12:24,343 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:24,343 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:24,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 04:12:24,343 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:24,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1536662915, now seen corresponding path program 1 times [2022-04-05 04:12:24,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:24,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448029927] [2022-04-05 04:12:24,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:24,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:12:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:24,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:24,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448029927] [2022-04-05 04:12:24,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448029927] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:24,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:24,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-05 04:12:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283098614] [2022-04-05 04:12:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:24,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-05 04:12:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-05 04:12:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:24,651 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) [2022-04-05 04:12:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:26,092 INFO L93 Difference]: Finished difference Result 747 states and 941 transitions. [2022-04-05 04:12:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:12:26,092 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 [2022-04-05 04:12:26,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:26,093 INFO L225 Difference]: With dead ends: 747 [2022-04-05 04:12:26,093 INFO L226 Difference]: Without dead ends: 719 [2022-04-05 04:12:26,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:26,094 INFO L913 BasicCegarLoop]: 440 mSDtfsCounter, 235 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:26,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2374 Invalid, 4890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-05 04:12:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-04-05 04:12:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 671. [2022-04-05 04:12:26,104 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) [2022-04-05 04:12:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 833 transitions. [2022-04-05 04:12:26,104 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 833 transitions. Word has length 69 [2022-04-05 04:12:26,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:26,105 INFO L478 AbstractCegarLoop]: Abstraction has 671 states and 833 transitions. [2022-04-05 04:12:26,105 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) [2022-04-05 04:12:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 833 transitions. [2022-04-05 04:12:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:12:26,106 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:26,106 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:26,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 04:12:26,106 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash 300413188, now seen corresponding path program 1 times [2022-04-05 04:12:26,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:26,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602046142] [2022-04-05 04:12:26,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:26,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:26,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602046142] [2022-04-05 04:12:26,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602046142] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:26,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:26,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:26,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390507305] [2022-04-05 04:12:26,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:26,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:26,299 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) [2022-04-05 04:12:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:27,367 INFO L93 Difference]: Finished difference Result 794 states and 1003 transitions. [2022-04-05 04:12:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:12:27,367 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 [2022-04-05 04:12:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:27,369 INFO L225 Difference]: With dead ends: 794 [2022-04-05 04:12:27,369 INFO L226 Difference]: Without dead ends: 794 [2022-04-05 04:12:27,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-04-05 04:12:27,369 INFO L913 BasicCegarLoop]: 444 mSDtfsCounter, 1893 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1900 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:27,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1900 Valid, 951 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-04-05 04:12:27,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 669. [2022-04-05 04:12:27,374 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) [2022-04-05 04:12:27,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 830 transitions. [2022-04-05 04:12:27,375 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 830 transitions. Word has length 69 [2022-04-05 04:12:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:27,375 INFO L478 AbstractCegarLoop]: Abstraction has 669 states and 830 transitions. [2022-04-05 04:12:27,376 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) [2022-04-05 04:12:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 830 transitions. [2022-04-05 04:12:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:12:27,376 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:27,376 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:27,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 04:12:27,377 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:27,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:27,377 INFO L85 PathProgramCache]: Analyzing trace with hash 300444932, now seen corresponding path program 1 times [2022-04-05 04:12:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:27,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293835677] [2022-04-05 04:12:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:27,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:27,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293835677] [2022-04-05 04:12:27,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293835677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:27,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:27,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-04-05 04:12:27,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073946589] [2022-04-05 04:12:27,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:27,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-05 04:12:27,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-05 04:12:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-04-05 04:12:27,604 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) [2022-04-05 04:12:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:29,352 INFO L93 Difference]: Finished difference Result 724 states and 909 transitions. [2022-04-05 04:12:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-05 04:12:29,353 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 [2022-04-05 04:12:29,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:29,354 INFO L225 Difference]: With dead ends: 724 [2022-04-05 04:12:29,354 INFO L226 Difference]: Without dead ends: 692 [2022-04-05 04:12:29,354 INFO L912 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 [2022-04-05 04:12:29,354 INFO L913 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 [2022-04-05 04:12:29,355 INFO L914 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] [2022-04-05 04:12:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-04-05 04:12:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 640. [2022-04-05 04:12:29,360 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) [2022-04-05 04:12:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 793 transitions. [2022-04-05 04:12:29,360 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 793 transitions. Word has length 69 [2022-04-05 04:12:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:29,361 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 793 transitions. [2022-04-05 04:12:29,361 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) [2022-04-05 04:12:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 793 transitions. [2022-04-05 04:12:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:12:29,361 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:29,362 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:29,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 04:12:29,362 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:29,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:29,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1365836196, now seen corresponding path program 1 times [2022-04-05 04:12:29,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:29,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873303233] [2022-04-05 04:12:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:29,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:29,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:29,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873303233] [2022-04-05 04:12:29,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873303233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:29,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:29,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:29,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546427217] [2022-04-05 04:12:29,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:29,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:29,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:29,611 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) [2022-04-05 04:12:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:30,664 INFO L93 Difference]: Finished difference Result 688 states and 865 transitions. [2022-04-05 04:12:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:12:30,665 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 [2022-04-05 04:12:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:30,666 INFO L225 Difference]: With dead ends: 688 [2022-04-05 04:12:30,666 INFO L226 Difference]: Without dead ends: 683 [2022-04-05 04:12:30,666 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:12:30,670 INFO L913 BasicCegarLoop]: 429 mSDtfsCounter, 893 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:30,673 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 1173 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:12:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-04-05 04:12:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 635. [2022-04-05 04:12:30,678 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) [2022-04-05 04:12:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 786 transitions. [2022-04-05 04:12:30,679 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 786 transitions. Word has length 69 [2022-04-05 04:12:30,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:30,679 INFO L478 AbstractCegarLoop]: Abstraction has 635 states and 786 transitions. [2022-04-05 04:12:30,679 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) [2022-04-05 04:12:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 786 transitions. [2022-04-05 04:12:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:12:30,680 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:30,680 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:30,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-05 04:12:30,680 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:30,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash -415492251, now seen corresponding path program 1 times [2022-04-05 04:12:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:30,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986358269] [2022-04-05 04:12:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:30,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 04:12:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:30,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:30,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986358269] [2022-04-05 04:12:30,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986358269] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:30,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:30,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-04-05 04:12:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388120424] [2022-04-05 04:12:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:30,970 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-05 04:12:30,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:30,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-05 04:12:30,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-04-05 04:12:30,971 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) [2022-04-05 04:12:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:32,185 INFO L93 Difference]: Finished difference Result 707 states and 886 transitions. [2022-04-05 04:12:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-05 04:12:32,186 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 [2022-04-05 04:12:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:32,187 INFO L225 Difference]: With dead ends: 707 [2022-04-05 04:12:32,187 INFO L226 Difference]: Without dead ends: 680 [2022-04-05 04:12:32,187 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-04-05 04:12:32,187 INFO L913 BasicCegarLoop]: 444 mSDtfsCounter, 1120 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 3774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:32,188 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 2154 Invalid, 3774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 3370 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-04-05 04:12:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 632. [2022-04-05 04:12:32,192 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) [2022-04-05 04:12:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 781 transitions. [2022-04-05 04:12:32,193 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 781 transitions. Word has length 69 [2022-04-05 04:12:32,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:32,193 INFO L478 AbstractCegarLoop]: Abstraction has 632 states and 781 transitions. [2022-04-05 04:12:32,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 8 states have internal predecessors, (53), 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) [2022-04-05 04:12:32,193 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 781 transitions. [2022-04-05 04:12:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:32,194 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:32,194 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:32,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 04:12:32,194 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:32,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash 135714178, now seen corresponding path program 1 times [2022-04-05 04:12:32,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:32,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382194870] [2022-04-05 04:12:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:32,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-04-05 04:12:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:32,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:32,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382194870] [2022-04-05 04:12:32,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382194870] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:32,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:32,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:12:32,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890115356] [2022-04-05 04:12:32,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:32,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:12:32,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:32,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:12:32,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:32,352 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) [2022-04-05 04:12:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:33,136 INFO L93 Difference]: Finished difference Result 684 states and 858 transitions. [2022-04-05 04:12:33,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:12:33,136 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 [2022-04-05 04:12:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:33,137 INFO L225 Difference]: With dead ends: 684 [2022-04-05 04:12:33,137 INFO L226 Difference]: Without dead ends: 684 [2022-04-05 04:12:33,137 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:12:33,138 INFO L913 BasicCegarLoop]: 419 mSDtfsCounter, 689 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:33,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 1162 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:33,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-04-05 04:12:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 632. [2022-04-05 04:12:33,142 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) [2022-04-05 04:12:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 780 transitions. [2022-04-05 04:12:33,143 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 780 transitions. Word has length 71 [2022-04-05 04:12:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:33,143 INFO L478 AbstractCegarLoop]: Abstraction has 632 states and 780 transitions. [2022-04-05 04:12:33,143 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) [2022-04-05 04:12:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 780 transitions. [2022-04-05 04:12:33,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:33,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:33,144 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:33,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 04:12:33,145 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:33,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:33,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1161206177, now seen corresponding path program 1 times [2022-04-05 04:12:33,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:33,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562449036] [2022-04-05 04:12:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:33,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-04-05 04:12:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:33,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:33,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562449036] [2022-04-05 04:12:33,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562449036] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:33,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:33,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-05 04:12:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768220339] [2022-04-05 04:12:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:33,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-05 04:12:33,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:33,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-05 04:12:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:33,473 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) [2022-04-05 04:12:35,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:35,404 INFO L93 Difference]: Finished difference Result 717 states and 901 transitions. [2022-04-05 04:12:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:12:35,404 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 [2022-04-05 04:12:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:35,406 INFO L225 Difference]: With dead ends: 717 [2022-04-05 04:12:35,406 INFO L226 Difference]: Without dead ends: 682 [2022-04-05 04:12:35,406 INFO L912 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 [2022-04-05 04:12:35,406 INFO L913 BasicCegarLoop]: 429 mSDtfsCounter, 710 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 4035 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 4298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 4035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:35,406 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 2415 Invalid, 4298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 4035 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:12:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-04-05 04:12:35,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 627. [2022-04-05 04:12:35,423 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) [2022-04-05 04:12:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 770 transitions. [2022-04-05 04:12:35,424 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 770 transitions. Word has length 71 [2022-04-05 04:12:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:35,425 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 770 transitions. [2022-04-05 04:12:35,425 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) [2022-04-05 04:12:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 770 transitions. [2022-04-05 04:12:35,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:35,426 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:35,426 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:35,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-05 04:12:35,426 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:35,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1109131485, now seen corresponding path program 1 times [2022-04-05 04:12:35,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:35,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145164577] [2022-04-05 04:12:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:35,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-04-05 04:12:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:35,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:35,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145164577] [2022-04-05 04:12:35,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145164577] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:35,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:35,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:12:35,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867302583] [2022-04-05 04:12:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:35,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:12:35,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:12:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:35,692 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) [2022-04-05 04:12:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:36,564 INFO L93 Difference]: Finished difference Result 677 states and 844 transitions. [2022-04-05 04:12:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:12:36,564 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 [2022-04-05 04:12:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:36,590 INFO L225 Difference]: With dead ends: 677 [2022-04-05 04:12:36,591 INFO L226 Difference]: Without dead ends: 671 [2022-04-05 04:12:36,591 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:12:36,591 INFO L913 BasicCegarLoop]: 408 mSDtfsCounter, 442 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:36,591 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1145 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:36,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-04-05 04:12:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 621. [2022-04-05 04:12:36,596 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) [2022-04-05 04:12:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 762 transitions. [2022-04-05 04:12:36,597 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 762 transitions. Word has length 71 [2022-04-05 04:12:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:36,597 INFO L478 AbstractCegarLoop]: Abstraction has 621 states and 762 transitions. [2022-04-05 04:12:36,597 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) [2022-04-05 04:12:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 762 transitions. [2022-04-05 04:12:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:36,598 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:36,598 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:36,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-05 04:12:36,598 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:36,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:36,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1256769401, now seen corresponding path program 1 times [2022-04-05 04:12:36,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:36,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622909101] [2022-04-05 04:12:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:36,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:36,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:36,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622909101] [2022-04-05 04:12:36,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622909101] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:36,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:36,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-04-05 04:12:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563895537] [2022-04-05 04:12:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:36,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-05 04:12:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-05 04:12:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-04-05 04:12:36,847 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) [2022-04-05 04:12:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:38,053 INFO L93 Difference]: Finished difference Result 738 states and 910 transitions. [2022-04-05 04:12:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-05 04:12:38,054 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 [2022-04-05 04:12:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:38,055 INFO L225 Difference]: With dead ends: 738 [2022-04-05 04:12:38,055 INFO L226 Difference]: Without dead ends: 713 [2022-04-05 04:12:38,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2022-04-05 04:12:38,055 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 753 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:38,056 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2014 Invalid, 3814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 3550 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:38,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-04-05 04:12:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 627. [2022-04-05 04:12:38,060 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) [2022-04-05 04:12:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 764 transitions. [2022-04-05 04:12:38,061 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 764 transitions. Word has length 71 [2022-04-05 04:12:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:38,061 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 764 transitions. [2022-04-05 04:12:38,061 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) [2022-04-05 04:12:38,061 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 764 transitions. [2022-04-05 04:12:38,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:12:38,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:38,062 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:38,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 04:12:38,062 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash 958622839, now seen corresponding path program 1 times [2022-04-05 04:12:38,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:38,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526340685] [2022-04-05 04:12:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:38,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:38,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526340685] [2022-04-05 04:12:38,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526340685] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:38,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:38,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:12:38,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789265562] [2022-04-05 04:12:38,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:38,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:12:38,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:38,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:12:38,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:38,222 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) [2022-04-05 04:12:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:39,093 INFO L93 Difference]: Finished difference Result 676 states and 836 transitions. [2022-04-05 04:12:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:12:39,094 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 [2022-04-05 04:12:39,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:39,096 INFO L225 Difference]: With dead ends: 676 [2022-04-05 04:12:39,096 INFO L226 Difference]: Without dead ends: 665 [2022-04-05 04:12:39,096 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:12:39,096 INFO L913 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 [2022-04-05 04:12:39,096 INFO L914 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] [2022-04-05 04:12:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-04-05 04:12:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 615. [2022-04-05 04:12:39,103 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) [2022-04-05 04:12:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 746 transitions. [2022-04-05 04:12:39,103 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 746 transitions. Word has length 73 [2022-04-05 04:12:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:39,104 INFO L478 AbstractCegarLoop]: Abstraction has 615 states and 746 transitions. [2022-04-05 04:12:39,105 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) [2022-04-05 04:12:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 746 transitions. [2022-04-05 04:12:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:12:39,106 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:39,106 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:39,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-05 04:12:39,107 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:39,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1514534938, now seen corresponding path program 1 times [2022-04-05 04:12:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:39,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279064521] [2022-04-05 04:12:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:39,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279064521] [2022-04-05 04:12:39,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279064521] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:39,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:39,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-05 04:12:39,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043044893] [2022-04-05 04:12:39,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:39,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-05 04:12:39,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:39,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-05 04:12:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:39,488 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) [2022-04-05 04:12:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:42,324 INFO L93 Difference]: Finished difference Result 1360 states and 1669 transitions. [2022-04-05 04:12:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-05 04:12:42,324 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 [2022-04-05 04:12:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:42,326 INFO L225 Difference]: With dead ends: 1360 [2022-04-05 04:12:42,326 INFO L226 Difference]: Without dead ends: 1353 [2022-04-05 04:12:42,326 INFO L912 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 [2022-04-05 04:12:42,327 INFO L913 BasicCegarLoop]: 418 mSDtfsCounter, 2588 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 3985 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:42,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2593 Valid, 1432 Invalid, 4843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 3985 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:12:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-04-05 04:12:42,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 974. [2022-04-05 04:12:42,335 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) [2022-04-05 04:12:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1197 transitions. [2022-04-05 04:12:42,336 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1197 transitions. Word has length 73 [2022-04-05 04:12:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:42,336 INFO L478 AbstractCegarLoop]: Abstraction has 974 states and 1197 transitions. [2022-04-05 04:12:42,336 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) [2022-04-05 04:12:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1197 transitions. [2022-04-05 04:12:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:12:42,337 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:42,337 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:42,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-05 04:12:42,338 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash -293312583, now seen corresponding path program 1 times [2022-04-05 04:12:42,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:42,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748125827] [2022-04-05 04:12:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:42,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-04-05 04:12:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:42,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:42,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748125827] [2022-04-05 04:12:42,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748125827] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:42,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:42,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:42,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883149843] [2022-04-05 04:12:42,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:42,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:42,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:42,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:42,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:42,514 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) [2022-04-05 04:12:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:44,060 INFO L93 Difference]: Finished difference Result 1243 states and 1537 transitions. [2022-04-05 04:12:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-05 04:12:44,060 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 [2022-04-05 04:12:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:44,062 INFO L225 Difference]: With dead ends: 1243 [2022-04-05 04:12:44,062 INFO L226 Difference]: Without dead ends: 1243 [2022-04-05 04:12:44,063 INFO L912 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 [2022-04-05 04:12:44,063 INFO L913 BasicCegarLoop]: 697 mSDtfsCounter, 2475 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:44,063 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2479 Valid, 1408 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:12:44,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-04-05 04:12:44,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1067. [2022-04-05 04:12:44,100 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) [2022-04-05 04:12:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1309 transitions. [2022-04-05 04:12:44,102 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1309 transitions. Word has length 73 [2022-04-05 04:12:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:44,102 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1309 transitions. [2022-04-05 04:12:44,102 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) [2022-04-05 04:12:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1309 transitions. [2022-04-05 04:12:44,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-05 04:12:44,103 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:44,103 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:44,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-05 04:12:44,104 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:44,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1233732800, now seen corresponding path program 1 times [2022-04-05 04:12:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142395315] [2022-04-05 04:12:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-04-05 04:12:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:44,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:44,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142395315] [2022-04-05 04:12:44,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142395315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:44,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:44,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-05 04:12:44,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696745456] [2022-04-05 04:12:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:44,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-05 04:12:44,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-05 04:12:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:44,613 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) [2022-04-05 04:12:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:46,442 INFO L93 Difference]: Finished difference Result 1198 states and 1495 transitions. [2022-04-05 04:12:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:12:46,443 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 [2022-04-05 04:12:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:46,445 INFO L225 Difference]: With dead ends: 1198 [2022-04-05 04:12:46,445 INFO L226 Difference]: Without dead ends: 1159 [2022-04-05 04:12:46,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-04-05 04:12:46,445 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 590 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 4246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:46,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 2482 Invalid, 4246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:12:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-04-05 04:12:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1063. [2022-04-05 04:12:46,455 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) [2022-04-05 04:12:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1303 transitions. [2022-04-05 04:12:46,457 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1303 transitions. Word has length 77 [2022-04-05 04:12:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:46,457 INFO L478 AbstractCegarLoop]: Abstraction has 1063 states and 1303 transitions. [2022-04-05 04:12:46,457 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) [2022-04-05 04:12:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1303 transitions. [2022-04-05 04:12:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-05 04:12:46,459 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:46,459 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:46,459 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-05 04:12:46,459 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:46,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:46,459 INFO L85 PathProgramCache]: Analyzing trace with hash -7999414, now seen corresponding path program 1 times [2022-04-05 04:12:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:46,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189151536] [2022-04-05 04:12:46,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:46,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-05 04:12:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:12:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:46,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:46,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189151536] [2022-04-05 04:12:46,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189151536] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:46,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:46,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-05 04:12:46,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966165881] [2022-04-05 04:12:46,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:46,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-05 04:12:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:46,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-05 04:12:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:12:46,633 INFO L87 Difference]: Start difference. First operand 1063 states and 1303 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) [2022-04-05 04:12:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:47,615 INFO L93 Difference]: Finished difference Result 1155 states and 1435 transitions. [2022-04-05 04:12:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:47,615 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 [2022-04-05 04:12:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:47,617 INFO L225 Difference]: With dead ends: 1155 [2022-04-05 04:12:47,617 INFO L226 Difference]: Without dead ends: 1125 [2022-04-05 04:12:47,617 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:47,617 INFO L913 BasicCegarLoop]: 386 mSDtfsCounter, 565 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:47,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 1560 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-04-05 04:12:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1045. [2022-04-05 04:12:47,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 830 states have (on average 1.236144578313253) internal successors, (1026), 848 states have internal predecessors, (1026), 109 states have call successors, (109), 81 states have call predecessors, (109), 105 states have return successors, (140), 120 states have call predecessors, (140), 103 states have call successors, (140) [2022-04-05 04:12:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1275 transitions. [2022-04-05 04:12:47,627 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1275 transitions. Word has length 75 [2022-04-05 04:12:47,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:47,628 INFO L478 AbstractCegarLoop]: Abstraction has 1045 states and 1275 transitions. [2022-04-05 04:12:47,628 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) [2022-04-05 04:12:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1275 transitions. [2022-04-05 04:12:47,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:12:47,629 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:47,629 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:47,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-05 04:12:47,630 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1981078137, now seen corresponding path program 1 times [2022-04-05 04:12:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:47,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820440914] [2022-04-05 04:12:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:47,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-05 04:12:47,666 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-05 04:12:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-05 04:12:47,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-05 04:12:47,753 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-05 04:12:47,754 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 04:12:47,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-05 04:12:47,761 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:47,763 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 04:12:47,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:12:47 BasicIcfg [2022-04-05 04:12:47,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 04:12:47,875 INFO L158 Benchmark]: Toolchain (without parser) took 126651.85ms. Allocated memory was 175.1MB in the beginning and 528.5MB in the end (delta: 353.4MB). Free memory was 123.5MB in the beginning and 344.4MB in the end (delta: -220.9MB). Peak memory consumption was 133.1MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,875 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory was 141.6MB in the beginning and 141.5MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 04:12:47,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.91ms. Allocated memory was 175.1MB in the beginning and 295.7MB in the end (delta: 120.6MB). Free memory was 123.4MB in the beginning and 254.2MB in the end (delta: -130.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,875 INFO L158 Benchmark]: Boogie Preprocessor took 111.63ms. Allocated memory is still 295.7MB. Free memory was 254.2MB in the beginning and 249.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,875 INFO L158 Benchmark]: RCFGBuilder took 1134.21ms. Allocated memory is still 295.7MB. Free memory was 249.2MB in the beginning and 255.9MB in the end (delta: -6.7MB). Peak memory consumption was 62.3MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,875 INFO L158 Benchmark]: IcfgTransformer took 53.33ms. Allocated memory is still 295.7MB. Free memory was 255.9MB in the beginning and 248.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,877 INFO L158 Benchmark]: TraceAbstraction took 124941.56ms. Allocated memory was 295.7MB in the beginning and 528.5MB in the end (delta: 232.8MB). Free memory was 247.5MB in the beginning and 344.4MB in the end (delta: -96.9MB). Peak memory consumption was 135.9MB. Max. memory is 8.0GB. [2022-04-05 04:12:47,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory was 141.6MB in the beginning and 141.5MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 401.91ms. Allocated memory was 175.1MB in the beginning and 295.7MB in the end (delta: 120.6MB). Free memory was 123.4MB in the beginning and 254.2MB in the end (delta: -130.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.63ms. Allocated memory is still 295.7MB. Free memory was 254.2MB in the beginning and 249.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1134.21ms. Allocated memory is still 295.7MB. Free memory was 249.2MB in the beginning and 255.9MB in the end (delta: -6.7MB). Peak memory consumption was 62.3MB. Max. memory is 8.0GB. * IcfgTransformer took 53.33ms. Allocated memory is still 295.7MB. Free memory was 255.9MB in the beginning and 248.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 124941.56ms. Allocated memory was 295.7MB in the beginning and 528.5MB in the end (delta: 232.8MB). Free memory was 247.5MB in the beginning and 344.4MB in the end (delta: -96.9MB). Peak memory consumption was 135.9MB. 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: 124.8s, OverallIterations: 67, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 107.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72105 SdHoareTripleChecker+Valid, 96.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71685 mSDsluCounter, 116896 SdHoareTripleChecker+Invalid, 81.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78068 mSDsCounter, 25189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186521 IncrementalHoareTripleChecker+Invalid, 211710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25189 mSolverCounterUnsat, 38828 mSDtfsCounter, 186521 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1748 GetRequests, 647 SyntacticMatches, 14 SemanticMatches, 1087 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1067occurred in iteration=64, InterpolantAutomatonStates: 893, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 66 MinimizatonAttempts, 8496 StatesRemovedByMinimization, 66 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 3939 NumberOfCodeBlocks, 3939 NumberOfCodeBlocksAsserted, 67 NumberOfCheckSat, 3800 ConstructedInterpolants, 0 QuantifiedInterpolants, 20068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 66 InterpolantComputations, 66 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! [2022-04-05 04:12:47,938 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...