/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:11:17,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:11:17,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:11:17,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:11:17,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:11:17,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:11:17,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:11:17,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:11:17,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:11:17,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:11:17,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:11:17,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:11:17,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:11:17,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:11:17,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:11:17,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:11:17,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:11:17,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:11:17,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:11:17,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:11:17,524 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:11:17,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:11:17,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:11:17,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:11:17,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:11:17,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 04:11:17,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:11:17,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:11:17,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:11:17,542 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:11:17,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:11:17,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:11:17,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:11:17,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:11:17,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:11:17,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:11:17,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:11:17,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:11:17,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:11:17,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:11:17,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:11:17,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:11:17,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:11:17,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:11:17,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:11:17,558 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:11:17,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:11:17,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:11:17,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:11:17,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:11:17,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:11:17,821 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:11:17,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-04-05 04:11:17,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de840868c/37c2773a36464f5584265427c74aff2d/FLAG5e7736513 [2022-04-05 04:11:18,393 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:11:18,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-04-05 04:11:18,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de840868c/37c2773a36464f5584265427c74aff2d/FLAG5e7736513 [2022-04-05 04:11:18,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de840868c/37c2773a36464f5584265427c74aff2d [2022-04-05 04:11:18,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:11:18,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:11:18,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:11:18,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:11:18,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:11:18,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:11:18" (1/1) ... [2022-04-05 04:11:18,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63746e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:18, skipping insertion in model container [2022-04-05 04:11:18,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:11:18" (1/1) ... [2022-04-05 04:11:18,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:11:18,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:11:19,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-04-05 04:11:19,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:11:19,264 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:11:19,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-04-05 04:11:19,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:11:19,371 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:11:19,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19 WrapperNode [2022-04-05 04:11:19,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:11:19,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:11:19,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:11:19,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:11:19,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:11:19,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:11:19,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:11:19,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:11:19,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (1/1) ... [2022-04-05 04:11:19,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:11:19,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:11:19,504 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 04:11:19,535 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 04:11:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:11:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:11:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2022-04-05 04:11:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-04-05 04:11:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-04-05 04:11:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-04-05 04:11:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-04-05 04:11:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:11:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-04-05 04:11:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-04-05 04:11:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-04-05 04:11:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-04-05 04:11:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-04-05 04:11:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-04-05 04:11:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2022-04-05 04:11:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-04-05 04:11:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-04-05 04:11:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:11:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:11:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:11:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:11:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-04-05 04:11:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-04-05 04:11:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-04-05 04:11:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:11:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:11:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:11:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:11:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:11:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:11:19,776 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:11:19,777 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:11:19,812 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:19,851 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:19,852 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:19,869 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:19,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:19,881 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:19,890 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-04-05 04:11:20,098 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-04-05 04:11:20,100 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,169 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-04-05 04:11:20,170 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-04-05 04:11:20,187 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,200 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-04-05 04:11:20,200 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-04-05 04:11:20,289 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,299 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,300 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,300 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,306 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,306 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,307 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,317 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,318 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,356 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,378 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-04-05 04:11:20,378 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-04-05 04:11:20,380 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,455 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-04-05 04:11:20,455 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-04-05 04:11:20,488 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,492 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,492 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,492 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,503 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,504 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,504 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:11:20,511 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-04-05 04:11:20,511 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-04-05 04:11:20,520 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:11:20,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:11:20,531 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:11:20,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:11:20 BoogieIcfgContainer [2022-04-05 04:11:20,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:11:20,535 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:11:20,535 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:11:20,536 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:11:20,539 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:11:20" (1/1) ... [2022-04-05 04:11:20,540 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:11:20,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:11:20 BasicIcfg [2022-04-05 04:11:20,577 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:11:20,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:11:20,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:11:20,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:11:20,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:11:18" (1/4) ... [2022-04-05 04:11:20,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3a79c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:11:20, skipping insertion in model container [2022-04-05 04:11:20,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:11:19" (2/4) ... [2022-04-05 04:11:20,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3a79c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:11:20, skipping insertion in model container [2022-04-05 04:11:20,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:11:20" (3/4) ... [2022-04-05 04:11:20,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3a79c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:11:20, skipping insertion in model container [2022-04-05 04:11:20,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:11:20" (4/4) ... [2022-04-05 04:11:20,584 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.cJordan [2022-04-05 04:11:20,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:11:20,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:11:20,621 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:11:20,626 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 04:11:20,627 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:11:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 390 states, 288 states have (on average 1.46875) internal successors, (423), 315 states have internal predecessors, (423), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2022-04-05 04:11:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-05 04:11:20,649 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:20,650 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 04:11:20,650 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:20,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -408635812, now seen corresponding path program 1 times [2022-04-05 04:11:20,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:20,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245209683] [2022-04-05 04:11:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:20,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:21,076 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 04:11:21,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:21,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245209683] [2022-04-05 04:11:21,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245209683] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:21,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:21,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:11:21,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124288568] [2022-04-05 04:11:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:21,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:11:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:21,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:11:21,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:11:21,121 INFO L87 Difference]: Start difference. First operand has 390 states, 288 states have (on average 1.46875) internal successors, (423), 315 states have internal predecessors, (423), 72 states have call successors, (72), 28 states have call predecessors, (72), 28 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-05 04:11:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:22,331 INFO L93 Difference]: Finished difference Result 430 states and 602 transitions. [2022-04-05 04:11:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:11:22,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-04-05 04:11:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:22,349 INFO L225 Difference]: With dead ends: 430 [2022-04-05 04:11:22,350 INFO L226 Difference]: Without dead ends: 424 [2022-04-05 04:11:22,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:11:22,354 INFO L913 BasicCegarLoop]: 496 mSDtfsCounter, 408 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:22,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 735 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:22,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-04-05 04:11:22,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 382. [2022-04-05 04:11:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.431095406360424) internal successors, (405), 308 states have internal predecessors, (405), 72 states have call successors, (72), 28 states have call predecessors, (72), 26 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-04-05 04:11:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2022-04-05 04:11:22,412 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2022-04-05 04:11:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:22,413 INFO L478 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2022-04-05 04:11:22,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-05 04:11:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2022-04-05 04:11:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-05 04:11:22,414 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:22,414 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 04:11:22,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:11:22,415 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1414681826, now seen corresponding path program 1 times [2022-04-05 04:11:22,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:22,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188448544] [2022-04-05 04:11:22,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:22,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:22,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:22,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188448544] [2022-04-05 04:11:22,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188448544] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:22,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:22,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:11:22,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510065449] [2022-04-05 04:11:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:22,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:11:22,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:22,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:11:22,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:11:22,577 INFO L87 Difference]: Start difference. First operand 382 states and 526 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:24,073 INFO L93 Difference]: Finished difference Result 589 states and 804 transitions. [2022-04-05 04:11:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:11:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-04-05 04:11:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:24,078 INFO L225 Difference]: With dead ends: 589 [2022-04-05 04:11:24,078 INFO L226 Difference]: Without dead ends: 588 [2022-04-05 04:11:24,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:24,079 INFO L913 BasicCegarLoop]: 640 mSDtfsCounter, 720 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:24,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 903 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-05 04:11:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-04-05 04:11:24,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 527. [2022-04-05 04:11:24,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 406 states have (on average 1.354679802955665) internal successors, (550), 412 states have internal predecessors, (550), 79 states have call successors, (79), 41 states have call predecessors, (79), 41 states have return successors, (90), 75 states have call predecessors, (90), 66 states have call successors, (90) [2022-04-05 04:11:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 719 transitions. [2022-04-05 04:11:24,111 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 719 transitions. Word has length 25 [2022-04-05 04:11:24,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:24,111 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 719 transitions. [2022-04-05 04:11:24,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:24,112 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 719 transitions. [2022-04-05 04:11:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-05 04:11:24,113 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:24,113 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 04:11:24,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:11:24,113 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash -767012771, now seen corresponding path program 1 times [2022-04-05 04:11:24,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:24,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594768483] [2022-04-05 04:11:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:24,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:24,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:24,270 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 04:11:24,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:24,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594768483] [2022-04-05 04:11:24,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594768483] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:24,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:24,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:11:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075632534] [2022-04-05 04:11:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:24,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:11:24,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:11:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:11:24,273 INFO L87 Difference]: Start difference. First operand 527 states and 719 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:25,032 INFO L93 Difference]: Finished difference Result 678 states and 909 transitions. [2022-04-05 04:11:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:11:25,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-04-05 04:11:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:25,041 INFO L225 Difference]: With dead ends: 678 [2022-04-05 04:11:25,042 INFO L226 Difference]: Without dead ends: 678 [2022-04-05 04:11:25,043 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:25,048 INFO L913 BasicCegarLoop]: 462 mSDtfsCounter, 946 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:25,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 609 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-05 04:11:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-04-05 04:11:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 591. [2022-04-05 04:11:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 457 states have (on average 1.3522975929978118) internal successors, (618), 471 states have internal predecessors, (618), 83 states have call successors, (83), 46 states have call predecessors, (83), 50 states have return successors, (101), 78 states have call predecessors, (101), 72 states have call successors, (101) [2022-04-05 04:11:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 802 transitions. [2022-04-05 04:11:25,128 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 802 transitions. Word has length 31 [2022-04-05 04:11:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:25,128 INFO L478 AbstractCegarLoop]: Abstraction has 591 states and 802 transitions. [2022-04-05 04:11:25,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 802 transitions. [2022-04-05 04:11:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-05 04:11:25,130 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:25,130 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] [2022-04-05 04:11:25,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:11:25,130 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:25,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:25,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1058216949, now seen corresponding path program 1 times [2022-04-05 04:11:25,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:25,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045664559] [2022-04-05 04:11:25,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:25,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:25,319 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 04:11:25,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045664559] [2022-04-05 04:11:25,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045664559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:25,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:25,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:11:25,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460767343] [2022-04-05 04:11:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:25,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:11:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:11:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:11:25,322 INFO L87 Difference]: Start difference. First operand 591 states and 802 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:26,321 INFO L93 Difference]: Finished difference Result 827 states and 1114 transitions. [2022-04-05 04:11:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:11:26,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2022-04-05 04:11:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:26,326 INFO L225 Difference]: With dead ends: 827 [2022-04-05 04:11:26,326 INFO L226 Difference]: Without dead ends: 827 [2022-04-05 04:11:26,326 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:26,327 INFO L913 BasicCegarLoop]: 544 mSDtfsCounter, 835 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:26,328 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 766 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-04-05 04:11:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 779. [2022-04-05 04:11:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 613 states have (on average 1.3425774877650898) internal successors, (823), 624 states have internal predecessors, (823), 100 states have call successors, (100), 61 states have call predecessors, (100), 65 states have return successors, (136), 97 states have call predecessors, (136), 91 states have call successors, (136) [2022-04-05 04:11:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2022-04-05 04:11:26,360 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 33 [2022-04-05 04:11:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:26,360 INFO L478 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2022-04-05 04:11:26,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2022-04-05 04:11:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-05 04:11:26,366 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:26,367 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 04:11:26,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:11:26,367 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1620352693, now seen corresponding path program 1 times [2022-04-05 04:11:26,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:26,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986250100] [2022-04-05 04:11:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:26,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-04-05 04:11:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:26,544 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 04:11:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:26,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986250100] [2022-04-05 04:11:26,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986250100] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:26,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:26,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076341954] [2022-04-05 04:11:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:26,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:26,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:26,547 INFO L87 Difference]: Start difference. First operand 779 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:27,454 INFO L93 Difference]: Finished difference Result 876 states and 1180 transitions. [2022-04-05 04:11:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2022-04-05 04:11:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:27,460 INFO L225 Difference]: With dead ends: 876 [2022-04-05 04:11:27,460 INFO L226 Difference]: Without dead ends: 876 [2022-04-05 04:11:27,460 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:27,464 INFO L913 BasicCegarLoop]: 482 mSDtfsCounter, 1152 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:27,464 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 820 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:11:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-04-05 04:11:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 822. [2022-04-05 04:11:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 649 states have (on average 1.337442218798151) internal successors, (868), 662 states have internal predecessors, (868), 100 states have call successors, (100), 61 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2022-04-05 04:11:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1111 transitions. [2022-04-05 04:11:27,490 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1111 transitions. Word has length 39 [2022-04-05 04:11:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:27,490 INFO L478 AbstractCegarLoop]: Abstraction has 822 states and 1111 transitions. [2022-04-05 04:11:27,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1111 transitions. [2022-04-05 04:11:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-05 04:11:27,491 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:27,492 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] [2022-04-05 04:11:27,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:11:27,492 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:27,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1439135067, now seen corresponding path program 1 times [2022-04-05 04:11:27,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:27,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949904983] [2022-04-05 04:11:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:27,649 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 04:11:27,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:27,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949904983] [2022-04-05 04:11:27,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949904983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:27,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:27,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:11:27,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389439458] [2022-04-05 04:11:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:27,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:11:27,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:11:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:11:27,651 INFO L87 Difference]: Start difference. First operand 822 states and 1111 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:28,634 INFO L93 Difference]: Finished difference Result 853 states and 1149 transitions. [2022-04-05 04:11:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:11:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-04-05 04:11:28,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:28,639 INFO L225 Difference]: With dead ends: 853 [2022-04-05 04:11:28,639 INFO L226 Difference]: Without dead ends: 853 [2022-04-05 04:11:28,639 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 04:11:28,640 INFO L913 BasicCegarLoop]: 470 mSDtfsCounter, 320 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:28,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 727 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-04-05 04:11:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 833. [2022-04-05 04:11:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3363636363636364) internal successors, (882), 672 states have internal predecessors, (882), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2022-04-05 04:11:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1125 transitions. [2022-04-05 04:11:28,660 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1125 transitions. Word has length 38 [2022-04-05 04:11:28,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:28,661 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1125 transitions. [2022-04-05 04:11:28,661 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-05 04:11:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1125 transitions. [2022-04-05 04:11:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-05 04:11:28,662 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:28,662 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 04:11:28,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:11:28,662 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash -859582263, now seen corresponding path program 1 times [2022-04-05 04:11:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:28,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181806457] [2022-04-05 04:11:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:28,921 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 04:11:28,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:28,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181806457] [2022-04-05 04:11:28,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181806457] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:28,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:28,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:28,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864729060] [2022-04-05 04:11:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:28,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:28,923 INFO L87 Difference]: Start difference. First operand 833 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:30,383 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2022-04-05 04:11:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:30,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-04-05 04:11:30,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:30,387 INFO L225 Difference]: With dead ends: 887 [2022-04-05 04:11:30,388 INFO L226 Difference]: Without dead ends: 887 [2022-04-05 04:11:30,388 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:30,388 INFO L913 BasicCegarLoop]: 461 mSDtfsCounter, 1713 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:30,391 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 945 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-04-05 04:11:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-04-05 04:11:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3333333333333333) internal successors, (880), 672 states have internal predecessors, (880), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2022-04-05 04:11:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1123 transitions. [2022-04-05 04:11:30,411 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1123 transitions. Word has length 39 [2022-04-05 04:11:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:30,412 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1123 transitions. [2022-04-05 04:11:30,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1123 transitions. [2022-04-05 04:11:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-04-05 04:11:30,414 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:30,414 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 04:11:30,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:11:30,414 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1831552671, now seen corresponding path program 1 times [2022-04-05 04:11:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373760845] [2022-04-05 04:11:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:30,627 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 04:11:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:30,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373760845] [2022-04-05 04:11:30,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373760845] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:30,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:30,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:30,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297106360] [2022-04-05 04:11:30,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:30,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:30,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:30,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:30,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:30,629 INFO L87 Difference]: Start difference. First operand 833 states and 1123 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:32,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:32,126 INFO L93 Difference]: Finished difference Result 887 states and 1190 transitions. [2022-04-05 04:11:32,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:32,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-04-05 04:11:32,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:32,131 INFO L225 Difference]: With dead ends: 887 [2022-04-05 04:11:32,131 INFO L226 Difference]: Without dead ends: 887 [2022-04-05 04:11:32,132 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:11:32,132 INFO L913 BasicCegarLoop]: 462 mSDtfsCounter, 1068 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:32,134 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 967 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-04-05 04:11:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 833. [2022-04-05 04:11:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 660 states have (on average 1.3303030303030303) internal successors, (878), 672 states have internal predecessors, (878), 100 states have call successors, (100), 62 states have call predecessors, (100), 72 states have return successors, (143), 100 states have call predecessors, (143), 91 states have call successors, (143) [2022-04-05 04:11:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1121 transitions. [2022-04-05 04:11:32,155 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1121 transitions. Word has length 40 [2022-04-05 04:11:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:32,156 INFO L478 AbstractCegarLoop]: Abstraction has 833 states and 1121 transitions. [2022-04-05 04:11:32,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1121 transitions. [2022-04-05 04:11:32,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-05 04:11:32,158 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:32,158 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] [2022-04-05 04:11:32,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:11:32,158 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:32,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:32,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1640201888, now seen corresponding path program 1 times [2022-04-05 04:11:32,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:32,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421245712] [2022-04-05 04:11:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:32,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:11:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:32,324 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 04:11:32,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:32,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421245712] [2022-04-05 04:11:32,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421245712] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:32,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:32,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:32,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399239646] [2022-04-05 04:11:32,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:32,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:32,326 INFO L87 Difference]: Start difference. First operand 833 states and 1121 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:33,269 INFO L93 Difference]: Finished difference Result 893 states and 1196 transitions. [2022-04-05 04:11:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:33,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2022-04-05 04:11:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:33,273 INFO L225 Difference]: With dead ends: 893 [2022-04-05 04:11:33,273 INFO L226 Difference]: Without dead ends: 881 [2022-04-05 04:11:33,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:33,274 INFO L913 BasicCegarLoop]: 482 mSDtfsCounter, 798 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:33,274 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 1248 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-04-05 04:11:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 831. [2022-04-05 04:11:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 659 states have (on average 1.3292867981790593) internal successors, (876), 671 states have internal predecessors, (876), 99 states have call successors, (99), 62 states have call predecessors, (99), 72 states have return successors, (142), 99 states have call predecessors, (142), 90 states have call successors, (142) [2022-04-05 04:11:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1117 transitions. [2022-04-05 04:11:33,293 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1117 transitions. Word has length 41 [2022-04-05 04:11:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:33,293 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1117 transitions. [2022-04-05 04:11:33,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1117 transitions. [2022-04-05 04:11:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-05 04:11:33,294 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:33,294 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:33,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:11:33,295 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 802238392, now seen corresponding path program 1 times [2022-04-05 04:11:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:33,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840912803] [2022-04-05 04:11:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-04-05 04:11:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:11:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:33,463 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 04:11:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:33,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840912803] [2022-04-05 04:11:33,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840912803] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:33,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:33,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:33,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990279496] [2022-04-05 04:11:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:33,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:33,465 INFO L87 Difference]: Start difference. First operand 831 states and 1117 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:34,400 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2022-04-05 04:11:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:34,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2022-04-05 04:11:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:34,404 INFO L225 Difference]: With dead ends: 891 [2022-04-05 04:11:34,404 INFO L226 Difference]: Without dead ends: 874 [2022-04-05 04:11:34,404 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:34,405 INFO L913 BasicCegarLoop]: 478 mSDtfsCounter, 579 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:34,405 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1296 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-04-05 04:11:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 824. [2022-04-05 04:11:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 655 states have (on average 1.3297709923664123) internal successors, (871), 667 states have internal predecessors, (871), 97 states have call successors, (97), 61 states have call predecessors, (97), 71 states have return successors, (140), 97 states have call predecessors, (140), 88 states have call successors, (140) [2022-04-05 04:11:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1108 transitions. [2022-04-05 04:11:34,425 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1108 transitions. Word has length 42 [2022-04-05 04:11:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:34,425 INFO L478 AbstractCegarLoop]: Abstraction has 824 states and 1108 transitions. [2022-04-05 04:11:34,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1108 transitions. [2022-04-05 04:11:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-05 04:11:34,426 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:34,426 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] [2022-04-05 04:11:34,427 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:11:34,427 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:34,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2062631413, now seen corresponding path program 1 times [2022-04-05 04:11:34,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:34,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165461961] [2022-04-05 04:11:34,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:34,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:34,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:34,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:34,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165461961] [2022-04-05 04:11:34,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165461961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:34,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:34,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:34,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854428376] [2022-04-05 04:11:34,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:34,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:34,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:34,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:34,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:34,583 INFO L87 Difference]: Start difference. First operand 824 states and 1108 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:35,548 INFO L93 Difference]: Finished difference Result 849 states and 1137 transitions. [2022-04-05 04:11:35,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:35,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-04-05 04:11:35,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:35,552 INFO L225 Difference]: With dead ends: 849 [2022-04-05 04:11:35,552 INFO L226 Difference]: Without dead ends: 849 [2022-04-05 04:11:35,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:35,553 INFO L913 BasicCegarLoop]: 459 mSDtfsCounter, 766 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:35,553 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 1003 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:11:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-04-05 04:11:35,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 826. [2022-04-05 04:11:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 657 states have (on average 1.3287671232876712) internal successors, (873), 669 states have internal predecessors, (873), 97 states have call successors, (97), 61 states have call predecessors, (97), 71 states have return successors, (140), 97 states have call predecessors, (140), 88 states have call successors, (140) [2022-04-05 04:11:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1110 transitions. [2022-04-05 04:11:35,571 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1110 transitions. Word has length 42 [2022-04-05 04:11:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:35,571 INFO L478 AbstractCegarLoop]: Abstraction has 826 states and 1110 transitions. [2022-04-05 04:11:35,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1110 transitions. [2022-04-05 04:11:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-05 04:11:35,572 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:35,573 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] [2022-04-05 04:11:35,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:11:35,573 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1257309958, now seen corresponding path program 1 times [2022-04-05 04:11:35,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:35,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598628101] [2022-04-05 04:11:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:35,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-04-05 04:11:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:35,736 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 04:11:35,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:35,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598628101] [2022-04-05 04:11:35,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598628101] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:35,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:35,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:11:35,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216568697] [2022-04-05 04:11:35,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:35,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:11:35,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:35,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:11:35,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:11:35,738 INFO L87 Difference]: Start difference. First operand 826 states and 1110 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:36,906 INFO L93 Difference]: Finished difference Result 854 states and 1143 transitions. [2022-04-05 04:11:36,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2022-04-05 04:11:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:36,909 INFO L225 Difference]: With dead ends: 854 [2022-04-05 04:11:36,909 INFO L226 Difference]: Without dead ends: 854 [2022-04-05 04:11:36,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:36,910 INFO L913 BasicCegarLoop]: 435 mSDtfsCounter, 468 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:36,910 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 946 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-04-05 04:11:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 830. [2022-04-05 04:11:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 660 states have (on average 1.3272727272727274) internal successors, (876), 672 states have internal predecessors, (876), 97 states have call successors, (97), 61 states have call predecessors, (97), 72 states have return successors, (142), 98 states have call predecessors, (142), 88 states have call successors, (142) [2022-04-05 04:11:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-04-05 04:11:36,931 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 44 [2022-04-05 04:11:36,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:36,932 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-04-05 04:11:36,932 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-04-05 04:11:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-05 04:11:36,933 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:36,933 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] [2022-04-05 04:11:36,933 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:11:36,933 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:36,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:36,934 INFO L85 PathProgramCache]: Analyzing trace with hash 319855895, now seen corresponding path program 1 times [2022-04-05 04:11:36,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:36,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818601077] [2022-04-05 04:11:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:36,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:37,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:37,097 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 04:11:37,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:37,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818601077] [2022-04-05 04:11:37,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818601077] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:37,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:37,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:37,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095910097] [2022-04-05 04:11:37,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:37,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:37,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:37,099 INFO L87 Difference]: Start difference. First operand 830 states and 1115 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:38,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:38,280 INFO L93 Difference]: Finished difference Result 852 states and 1140 transitions. [2022-04-05 04:11:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:11:38,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2022-04-05 04:11:38,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:38,284 INFO L225 Difference]: With dead ends: 852 [2022-04-05 04:11:38,284 INFO L226 Difference]: Without dead ends: 852 [2022-04-05 04:11:38,284 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:38,285 INFO L913 BasicCegarLoop]: 464 mSDtfsCounter, 383 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:38,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1041 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:38,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-04-05 04:11:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 830. [2022-04-05 04:11:38,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 660 states have (on average 1.3272727272727274) internal successors, (876), 672 states have internal predecessors, (876), 97 states have call successors, (97), 61 states have call predecessors, (97), 72 states have return successors, (142), 98 states have call predecessors, (142), 88 states have call successors, (142) [2022-04-05 04:11:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1115 transitions. [2022-04-05 04:11:38,302 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1115 transitions. Word has length 43 [2022-04-05 04:11:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:38,302 INFO L478 AbstractCegarLoop]: Abstraction has 830 states and 1115 transitions. [2022-04-05 04:11:38,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1115 transitions. [2022-04-05 04:11:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-05 04:11:38,303 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:38,303 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] [2022-04-05 04:11:38,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:11:38,304 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:38,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:38,304 INFO L85 PathProgramCache]: Analyzing trace with hash -368503493, now seen corresponding path program 1 times [2022-04-05 04:11:38,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:38,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178271173] [2022-04-05 04:11:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:38,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:38,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178271173] [2022-04-05 04:11:38,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178271173] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:38,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:38,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839256424] [2022-04-05 04:11:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:38,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:38,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:38,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:38,478 INFO L87 Difference]: Start difference. First operand 830 states and 1115 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:39,286 INFO L93 Difference]: Finished difference Result 872 states and 1165 transitions. [2022-04-05 04:11:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:39,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2022-04-05 04:11:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:39,291 INFO L225 Difference]: With dead ends: 872 [2022-04-05 04:11:39,291 INFO L226 Difference]: Without dead ends: 857 [2022-04-05 04:11:39,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:39,291 INFO L913 BasicCegarLoop]: 460 mSDtfsCounter, 1004 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:39,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 1218 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:11:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-04-05 04:11:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 828. [2022-04-05 04:11:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 659 states have (on average 1.3262518968133536) internal successors, (874), 671 states have internal predecessors, (874), 96 states have call successors, (96), 61 states have call predecessors, (96), 72 states have return successors, (141), 97 states have call predecessors, (141), 87 states have call successors, (141) [2022-04-05 04:11:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1111 transitions. [2022-04-05 04:11:39,309 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1111 transitions. Word has length 45 [2022-04-05 04:11:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:39,309 INFO L478 AbstractCegarLoop]: Abstraction has 828 states and 1111 transitions. [2022-04-05 04:11:39,309 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1111 transitions. [2022-04-05 04:11:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-04-05 04:11:39,310 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:39,310 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 04:11:39,310 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:11:39,311 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:39,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:39,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1762098405, now seen corresponding path program 1 times [2022-04-05 04:11:39,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:39,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376022218] [2022-04-05 04:11:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:39,502 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 04:11:39,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:39,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376022218] [2022-04-05 04:11:39,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376022218] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:39,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:39,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:39,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865414687] [2022-04-05 04:11:39,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:39,503 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:39,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:39,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:39,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:39,503 INFO L87 Difference]: Start difference. First operand 828 states and 1111 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:40,544 INFO L93 Difference]: Finished difference Result 857 states and 1140 transitions. [2022-04-05 04:11:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:11:40,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2022-04-05 04:11:40,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:40,548 INFO L225 Difference]: With dead ends: 857 [2022-04-05 04:11:40,548 INFO L226 Difference]: Without dead ends: 836 [2022-04-05 04:11:40,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:11:40,548 INFO L913 BasicCegarLoop]: 488 mSDtfsCounter, 671 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:40,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 904 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-04-05 04:11:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 806. [2022-04-05 04:11:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 641 states have (on average 1.3198127925117005) internal successors, (846), 653 states have internal predecessors, (846), 96 states have call successors, (96), 61 states have call predecessors, (96), 68 states have return successors, (137), 93 states have call predecessors, (137), 87 states have call successors, (137) [2022-04-05 04:11:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1079 transitions. [2022-04-05 04:11:40,567 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1079 transitions. Word has length 46 [2022-04-05 04:11:40,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:40,567 INFO L478 AbstractCegarLoop]: Abstraction has 806 states and 1079 transitions. [2022-04-05 04:11:40,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1079 transitions. [2022-04-05 04:11:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-05 04:11:40,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:40,569 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 04:11:40,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:11:40,569 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:40,570 INFO L85 PathProgramCache]: Analyzing trace with hash -569320266, now seen corresponding path program 1 times [2022-04-05 04:11:40,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:40,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644154702] [2022-04-05 04:11:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-04-05 04:11:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:40,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:40,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644154702] [2022-04-05 04:11:40,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644154702] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:40,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:40,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:11:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720042411] [2022-04-05 04:11:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:40,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:11:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:11:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:11:40,698 INFO L87 Difference]: Start difference. First operand 806 states and 1079 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:41,974 INFO L93 Difference]: Finished difference Result 1162 states and 1566 transitions. [2022-04-05 04:11:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:41,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2022-04-05 04:11:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:41,979 INFO L225 Difference]: With dead ends: 1162 [2022-04-05 04:11:41,979 INFO L226 Difference]: Without dead ends: 1162 [2022-04-05 04:11:41,979 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:41,980 INFO L913 BasicCegarLoop]: 538 mSDtfsCounter, 496 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:41,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 774 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:11:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-04-05 04:11:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 919. [2022-04-05 04:11:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 732 states have (on average 1.325136612021858) internal successors, (970), 746 states have internal predecessors, (970), 106 states have call successors, (106), 71 states have call predecessors, (106), 80 states have return successors, (157), 103 states have call predecessors, (157), 97 states have call successors, (157) [2022-04-05 04:11:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1233 transitions. [2022-04-05 04:11:42,002 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1233 transitions. Word has length 47 [2022-04-05 04:11:42,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:42,003 INFO L478 AbstractCegarLoop]: Abstraction has 919 states and 1233 transitions. [2022-04-05 04:11:42,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-04-05 04:11:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1233 transitions. [2022-04-05 04:11:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-05 04:11:42,004 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:42,004 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] [2022-04-05 04:11:42,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:11:42,004 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:42,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1287446407, now seen corresponding path program 1 times [2022-04-05 04:11:42,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:42,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787759833] [2022-04-05 04:11:42,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:42,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:11:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:11:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:42,154 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 04:11:42,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:42,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787759833] [2022-04-05 04:11:42,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787759833] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:42,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:42,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:42,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468103377] [2022-04-05 04:11:42,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:42,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:42,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:42,156 INFO L87 Difference]: Start difference. First operand 919 states and 1233 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:43,349 INFO L93 Difference]: Finished difference Result 961 states and 1283 transitions. [2022-04-05 04:11:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:11:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2022-04-05 04:11:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:43,353 INFO L225 Difference]: With dead ends: 961 [2022-04-05 04:11:43,353 INFO L226 Difference]: Without dead ends: 946 [2022-04-05 04:11:43,353 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:43,354 INFO L913 BasicCegarLoop]: 453 mSDtfsCounter, 256 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:43,354 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1306 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:11:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-04-05 04:11:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 917. [2022-04-05 04:11:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 731 states have (on average 1.3242134062927498) internal successors, (968), 745 states have internal predecessors, (968), 105 states have call successors, (105), 71 states have call predecessors, (105), 80 states have return successors, (156), 102 states have call predecessors, (156), 96 states have call successors, (156) [2022-04-05 04:11:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1229 transitions. [2022-04-05 04:11:43,371 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1229 transitions. Word has length 47 [2022-04-05 04:11:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:43,371 INFO L478 AbstractCegarLoop]: Abstraction has 917 states and 1229 transitions. [2022-04-05 04:11:43,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1229 transitions. [2022-04-05 04:11:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-05 04:11:43,372 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:43,372 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] [2022-04-05 04:11:43,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:11:43,373 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:43,373 INFO L85 PathProgramCache]: Analyzing trace with hash -500504501, now seen corresponding path program 1 times [2022-04-05 04:11:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:43,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874381421] [2022-04-05 04:11:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-04-05 04:11:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:43,596 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 04:11:43,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:43,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874381421] [2022-04-05 04:11:43,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874381421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:43,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:43,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:43,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346507860] [2022-04-05 04:11:43,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:43,597 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:43,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:43,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:43,598 INFO L87 Difference]: Start difference. First operand 917 states and 1229 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-05 04:11:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:44,952 INFO L93 Difference]: Finished difference Result 967 states and 1275 transitions. [2022-04-05 04:11:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:44,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-04-05 04:11:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:44,955 INFO L225 Difference]: With dead ends: 967 [2022-04-05 04:11:44,955 INFO L226 Difference]: Without dead ends: 967 [2022-04-05 04:11:44,955 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:11:44,956 INFO L913 BasicCegarLoop]: 559 mSDtfsCounter, 1716 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:44,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 845 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:44,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-04-05 04:11:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 908. [2022-04-05 04:11:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 722 states have (on average 1.311634349030471) internal successors, (947), 736 states have internal predecessors, (947), 105 states have call successors, (105), 71 states have call predecessors, (105), 80 states have return successors, (156), 102 states have call predecessors, (156), 96 states have call successors, (156) [2022-04-05 04:11:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1208 transitions. [2022-04-05 04:11:44,973 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1208 transitions. Word has length 48 [2022-04-05 04:11:44,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:44,973 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1208 transitions. [2022-04-05 04:11:44,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-05 04:11:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1208 transitions. [2022-04-05 04:11:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:11:44,974 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:44,974 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 04:11:44,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:11:44,975 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash 336138752, now seen corresponding path program 1 times [2022-04-05 04:11:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:44,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958296740] [2022-04-05 04:11:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:44,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:45,180 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 04:11:45,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:45,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958296740] [2022-04-05 04:11:45,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958296740] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:45,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:45,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:11:45,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499510782] [2022-04-05 04:11:45,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:45,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:11:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:45,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:11:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:11:45,182 INFO L87 Difference]: Start difference. First operand 908 states and 1208 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-05 04:11:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:46,954 INFO L93 Difference]: Finished difference Result 1106 states and 1470 transitions. [2022-04-05 04:11:46,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-05 04:11:46,954 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2022-04-05 04:11:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:46,961 INFO L225 Difference]: With dead ends: 1106 [2022-04-05 04:11:46,961 INFO L226 Difference]: Without dead ends: 1106 [2022-04-05 04:11:46,962 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-04-05 04:11:46,963 INFO L913 BasicCegarLoop]: 542 mSDtfsCounter, 1407 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:46,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 1436 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-05 04:11:46,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-05 04:11:46,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 963. [2022-04-05 04:11:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 766 states have (on average 1.3054830287206267) internal successors, (1000), 782 states have internal predecessors, (1000), 108 states have call successors, (108), 72 states have call predecessors, (108), 88 states have return successors, (173), 109 states have call predecessors, (173), 99 states have call successors, (173) [2022-04-05 04:11:46,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1281 transitions. [2022-04-05 04:11:46,984 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1281 transitions. Word has length 50 [2022-04-05 04:11:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:46,984 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1281 transitions. [2022-04-05 04:11:46,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-05 04:11:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1281 transitions. [2022-04-05 04:11:46,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:11:46,988 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:46,988 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 04:11:46,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:11:46,988 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1890537656, now seen corresponding path program 1 times [2022-04-05 04:11:46,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:46,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739491100] [2022-04-05 04:11:46,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:46,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:11:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:47,168 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 04:11:47,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:47,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739491100] [2022-04-05 04:11:47,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739491100] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:47,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:47,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90252336] [2022-04-05 04:11:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:47,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:47,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:47,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:47,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:47,170 INFO L87 Difference]: Start difference. First operand 963 states and 1281 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:48,434 INFO L93 Difference]: Finished difference Result 1007 states and 1331 transitions. [2022-04-05 04:11:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2022-04-05 04:11:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:48,438 INFO L225 Difference]: With dead ends: 1007 [2022-04-05 04:11:48,438 INFO L226 Difference]: Without dead ends: 990 [2022-04-05 04:11:48,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:11:48,439 INFO L913 BasicCegarLoop]: 457 mSDtfsCounter, 777 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:48,439 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 1551 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-04-05 04:11:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 963. [2022-04-05 04:11:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 766 states have (on average 1.2898172323759791) internal successors, (988), 782 states have internal predecessors, (988), 108 states have call successors, (108), 72 states have call predecessors, (108), 88 states have return successors, (173), 109 states have call predecessors, (173), 99 states have call successors, (173) [2022-04-05 04:11:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1269 transitions. [2022-04-05 04:11:48,460 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1269 transitions. Word has length 50 [2022-04-05 04:11:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:48,460 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1269 transitions. [2022-04-05 04:11:48,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1269 transitions. [2022-04-05 04:11:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:48,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:48,462 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:48,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:11:48,462 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:48,462 INFO L85 PathProgramCache]: Analyzing trace with hash 570524352, now seen corresponding path program 1 times [2022-04-05 04:11:48,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:48,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227885945] [2022-04-05 04:11:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:48,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-04-05 04:11:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:48,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:48,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227885945] [2022-04-05 04:11:48,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227885945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:48,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:48,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:48,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581123366] [2022-04-05 04:11:48,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:48,597 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:48,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:48,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:48,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:48,598 INFO L87 Difference]: Start difference. First operand 963 states and 1269 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-05 04:11:49,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:49,464 INFO L93 Difference]: Finished difference Result 716 states and 907 transitions. [2022-04-05 04:11:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:49,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-04-05 04:11:49,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:49,467 INFO L225 Difference]: With dead ends: 716 [2022-04-05 04:11:49,467 INFO L226 Difference]: Without dead ends: 716 [2022-04-05 04:11:49,468 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:49,468 INFO L913 BasicCegarLoop]: 473 mSDtfsCounter, 918 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:49,468 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 821 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:11:49,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-04-05 04:11:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 654. [2022-04-05 04:11:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 523 states have (on average 1.27151051625239) internal successors, (665), 534 states have internal predecessors, (665), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 73 states have call predecessors, (90), 65 states have call successors, (90) [2022-04-05 04:11:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2022-04-05 04:11:49,480 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 52 [2022-04-05 04:11:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:49,480 INFO L478 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2022-04-05 04:11:49,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-05 04:11:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2022-04-05 04:11:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:11:49,483 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:49,483 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 04:11:49,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:11:49,483 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:49,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash 473481812, now seen corresponding path program 1 times [2022-04-05 04:11:49,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:49,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988298961] [2022-04-05 04:11:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:49,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:11:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:49,695 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 04:11:49,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:49,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988298961] [2022-04-05 04:11:49,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988298961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:49,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:49,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197934258] [2022-04-05 04:11:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:49,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:49,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:49,696 INFO L87 Difference]: Start difference. First operand 654 states and 829 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:50,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:50,772 INFO L93 Difference]: Finished difference Result 701 states and 883 transitions. [2022-04-05 04:11:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2022-04-05 04:11:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:50,776 INFO L225 Difference]: With dead ends: 701 [2022-04-05 04:11:50,776 INFO L226 Difference]: Without dead ends: 676 [2022-04-05 04:11:50,776 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:11:50,776 INFO L913 BasicCegarLoop]: 444 mSDtfsCounter, 590 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:50,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 1522 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-04-05 04:11:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 644. [2022-04-05 04:11:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 513 states have (on average 1.267056530214425) internal successors, (650), 524 states have internal predecessors, (650), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 73 states have call predecessors, (90), 65 states have call successors, (90) [2022-04-05 04:11:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 814 transitions. [2022-04-05 04:11:50,787 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 814 transitions. Word has length 51 [2022-04-05 04:11:50,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:50,787 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 814 transitions. [2022-04-05 04:11:50,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 814 transitions. [2022-04-05 04:11:50,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:11:50,788 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:50,789 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 04:11:50,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:11:50,789 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:50,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:50,789 INFO L85 PathProgramCache]: Analyzing trace with hash -138518503, now seen corresponding path program 1 times [2022-04-05 04:11:50,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:50,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366598109] [2022-04-05 04:11:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:50,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:11:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:50,987 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 04:11:50,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:50,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366598109] [2022-04-05 04:11:50,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366598109] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:50,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:50,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:11:50,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283201087] [2022-04-05 04:11:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:50,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:11:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:11:50,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:11:50,989 INFO L87 Difference]: Start difference. First operand 644 states and 814 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:52,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:52,150 INFO L93 Difference]: Finished difference Result 678 states and 855 transitions. [2022-04-05 04:11:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:11:52,150 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2022-04-05 04:11:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:52,152 INFO L225 Difference]: With dead ends: 678 [2022-04-05 04:11:52,152 INFO L226 Difference]: Without dead ends: 678 [2022-04-05 04:11:52,152 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:52,153 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 724 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:52,153 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1027 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-04-05 04:11:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 647. [2022-04-05 04:11:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 516 states have (on average 1.2655038759689923) internal successors, (653), 526 states have internal predecessors, (653), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 74 states have call predecessors, (90), 65 states have call successors, (90) [2022-04-05 04:11:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 817 transitions. [2022-04-05 04:11:52,164 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 817 transitions. Word has length 51 [2022-04-05 04:11:52,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:52,164 INFO L478 AbstractCegarLoop]: Abstraction has 647 states and 817 transitions. [2022-04-05 04:11:52,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 817 transitions. [2022-04-05 04:11:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:52,165 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:52,166 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 04:11:52,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:11:52,166 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:52,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1703742909, now seen corresponding path program 1 times [2022-04-05 04:11:52,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:52,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008600944] [2022-04-05 04:11:52,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:52,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:52,349 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 04:11:52,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:52,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008600944] [2022-04-05 04:11:52,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008600944] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:52,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:52,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:11:52,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024787763] [2022-04-05 04:11:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:52,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:11:52,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:11:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:52,353 INFO L87 Difference]: Start difference. First operand 647 states and 817 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:53,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:53,324 INFO L93 Difference]: Finished difference Result 708 states and 902 transitions. [2022-04-05 04:11:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:11:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-04-05 04:11:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:53,326 INFO L225 Difference]: With dead ends: 708 [2022-04-05 04:11:53,326 INFO L226 Difference]: Without dead ends: 707 [2022-04-05 04:11:53,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:53,327 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 897 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:53,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 897 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:11:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-04-05 04:11:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 658. [2022-04-05 04:11:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 527 states have (on average 1.269449715370019) internal successors, (669), 537 states have internal predecessors, (669), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 74 states have call predecessors, (90), 65 states have call successors, (90) [2022-04-05 04:11:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 833 transitions. [2022-04-05 04:11:53,338 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 833 transitions. Word has length 52 [2022-04-05 04:11:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:53,339 INFO L478 AbstractCegarLoop]: Abstraction has 658 states and 833 transitions. [2022-04-05 04:11:53,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:11:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 833 transitions. [2022-04-05 04:11:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:53,340 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:53,340 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 04:11:53,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:11:53,340 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:53,341 INFO L85 PathProgramCache]: Analyzing trace with hash -350433212, now seen corresponding path program 1 times [2022-04-05 04:11:53,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:53,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617035950] [2022-04-05 04:11:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:53,573 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 04:11:53,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:53,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617035950] [2022-04-05 04:11:53,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617035950] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:53,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:53,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:11:53,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513090657] [2022-04-05 04:11:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:53,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:11:53,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:53,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:11:53,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:53,575 INFO L87 Difference]: Start difference. First operand 658 states and 833 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-05 04:11:54,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:54,991 INFO L93 Difference]: Finished difference Result 701 states and 882 transitions. [2022-04-05 04:11:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:11:54,991 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 52 [2022-04-05 04:11:54,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:54,993 INFO L225 Difference]: With dead ends: 701 [2022-04-05 04:11:54,993 INFO L226 Difference]: Without dead ends: 701 [2022-04-05 04:11:54,994 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-04-05 04:11:54,994 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 928 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:54,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 1123 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:11:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-04-05 04:11:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 651. [2022-04-05 04:11:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 520 states have (on average 1.2653846153846153) internal successors, (658), 530 states have internal predecessors, (658), 74 states have call successors, (74), 47 states have call predecessors, (74), 56 states have return successors, (90), 74 states have call predecessors, (90), 65 states have call successors, (90) [2022-04-05 04:11:55,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 822 transitions. [2022-04-05 04:11:55,005 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 822 transitions. Word has length 52 [2022-04-05 04:11:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:55,005 INFO L478 AbstractCegarLoop]: Abstraction has 651 states and 822 transitions. [2022-04-05 04:11:55,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-05 04:11:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 822 transitions. [2022-04-05 04:11:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:11:55,007 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:55,007 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:11:55,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:11:55,007 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash 5804132, now seen corresponding path program 1 times [2022-04-05 04:11:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:55,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109265380] [2022-04-05 04:11:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:55,162 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 04:11:55,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:55,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109265380] [2022-04-05 04:11:55,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109265380] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:55,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:55,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:11:55,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873955190] [2022-04-05 04:11:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:55,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:11:55,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:11:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:11:55,164 INFO L87 Difference]: Start difference. First operand 651 states and 822 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:56,241 INFO L93 Difference]: Finished difference Result 834 states and 1071 transitions. [2022-04-05 04:11:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:11:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-04-05 04:11:56,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:56,244 INFO L225 Difference]: With dead ends: 834 [2022-04-05 04:11:56,244 INFO L226 Difference]: Without dead ends: 834 [2022-04-05 04:11:56,244 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:11:56,245 INFO L913 BasicCegarLoop]: 576 mSDtfsCounter, 648 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:56,246 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 1038 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:11:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-04-05 04:11:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 657. [2022-04-05 04:11:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 525 states have (on average 1.2571428571428571) internal successors, (660), 535 states have internal predecessors, (660), 74 states have call successors, (74), 47 states have call predecessors, (74), 57 states have return successors, (91), 75 states have call predecessors, (91), 65 states have call successors, (91) [2022-04-05 04:11:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2022-04-05 04:11:56,256 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 52 [2022-04-05 04:11:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:56,257 INFO L478 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2022-04-05 04:11:56,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2022-04-05 04:11:56,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-05 04:11:56,258 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:56,258 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 04:11:56,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:11:56,258 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:56,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash 211450194, now seen corresponding path program 1 times [2022-04-05 04:11:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:56,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878392577] [2022-04-05 04:11:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:56,504 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 04:11:56,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:56,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878392577] [2022-04-05 04:11:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878392577] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:56,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:56,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:11:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972125523] [2022-04-05 04:11:56,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:56,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:11:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:11:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:56,506 INFO L87 Difference]: Start difference. First operand 657 states and 825 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:57,538 INFO L93 Difference]: Finished difference Result 734 states and 928 transitions. [2022-04-05 04:11:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:11:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2022-04-05 04:11:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:57,540 INFO L225 Difference]: With dead ends: 734 [2022-04-05 04:11:57,540 INFO L226 Difference]: Without dead ends: 733 [2022-04-05 04:11:57,540 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:11:57,541 INFO L913 BasicCegarLoop]: 430 mSDtfsCounter, 476 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:57,541 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 1779 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:11:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-04-05 04:11:57,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 674. [2022-04-05 04:11:57,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 540 states have (on average 1.25) internal successors, (675), 550 states have internal predecessors, (675), 74 states have call successors, (74), 47 states have call predecessors, (74), 59 states have return successors, (100), 77 states have call predecessors, (100), 65 states have call successors, (100) [2022-04-05 04:11:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 849 transitions. [2022-04-05 04:11:57,553 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 849 transitions. Word has length 53 [2022-04-05 04:11:57,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:57,553 INFO L478 AbstractCegarLoop]: Abstraction has 674 states and 849 transitions. [2022-04-05 04:11:57,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 849 transitions. [2022-04-05 04:11:57,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-05 04:11:57,554 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:57,554 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 04:11:57,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:11:57,555 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:57,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 211481938, now seen corresponding path program 1 times [2022-04-05 04:11:57,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:57,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874792328] [2022-04-05 04:11:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:57,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:57,745 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 04:11:57,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:57,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874792328] [2022-04-05 04:11:57,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874792328] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:57,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:57,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:11:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214185627] [2022-04-05 04:11:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:57,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:11:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:11:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:11:57,747 INFO L87 Difference]: Start difference. First operand 674 states and 849 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:11:59,074 INFO L93 Difference]: Finished difference Result 716 states and 898 transitions. [2022-04-05 04:11:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:11:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2022-04-05 04:11:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:11:59,077 INFO L225 Difference]: With dead ends: 716 [2022-04-05 04:11:59,077 INFO L226 Difference]: Without dead ends: 704 [2022-04-05 04:11:59,077 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:11:59,078 INFO L913 BasicCegarLoop]: 434 mSDtfsCounter, 270 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:11:59,078 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1792 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-05 04:11:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-04-05 04:11:59,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 671. [2022-04-05 04:11:59,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 537 states have (on average 1.2513966480446927) internal successors, (672), 548 states have internal predecessors, (672), 74 states have call successors, (74), 47 states have call predecessors, (74), 59 states have return successors, (99), 76 states have call predecessors, (99), 65 states have call successors, (99) [2022-04-05 04:11:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 845 transitions. [2022-04-05 04:11:59,089 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 845 transitions. Word has length 53 [2022-04-05 04:11:59,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:11:59,089 INFO L478 AbstractCegarLoop]: Abstraction has 671 states and 845 transitions. [2022-04-05 04:11:59,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:11:59,089 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 845 transitions. [2022-04-05 04:11:59,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-04-05 04:11:59,090 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:11:59,090 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 04:11:59,091 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:11:59,091 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:11:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:11:59,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1414064793, now seen corresponding path program 1 times [2022-04-05 04:11:59,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:11:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98304344] [2022-04-05 04:11:59,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:11:59,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:11:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:11:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:11:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:11:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:11:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-04-05 04:11:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:11:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:11:59,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:11:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98304344] [2022-04-05 04:11:59,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98304344] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:11:59,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:11:59,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:11:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207151868] [2022-04-05 04:11:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:11:59,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:11:59,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:11:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:11:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:11:59,314 INFO L87 Difference]: Start difference. First operand 671 states and 845 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:00,514 INFO L93 Difference]: Finished difference Result 714 states and 894 transitions. [2022-04-05 04:12:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:12:00,514 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2022-04-05 04:12:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:00,516 INFO L225 Difference]: With dead ends: 714 [2022-04-05 04:12:00,516 INFO L226 Difference]: Without dead ends: 689 [2022-04-05 04:12:00,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:00,517 INFO L913 BasicCegarLoop]: 427 mSDtfsCounter, 668 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:00,517 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 1906 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:00,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-04-05 04:12:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 659. [2022-04-05 04:12:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.25) internal successors, (660), 539 states have internal predecessors, (660), 72 states have call successors, (72), 46 states have call predecessors, (72), 58 states have return successors, (97), 74 states have call predecessors, (97), 63 states have call successors, (97) [2022-04-05 04:12:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 829 transitions. [2022-04-05 04:12:00,527 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 829 transitions. Word has length 55 [2022-04-05 04:12:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:00,527 INFO L478 AbstractCegarLoop]: Abstraction has 659 states and 829 transitions. [2022-04-05 04:12:00,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 829 transitions. [2022-04-05 04:12:00,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-04-05 04:12:00,528 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:00,529 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 04:12:00,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:12:00,529 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1737253539, now seen corresponding path program 1 times [2022-04-05 04:12:00,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:00,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763939569] [2022-04-05 04:12:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:00,716 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 04:12:00,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:00,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763939569] [2022-04-05 04:12:00,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763939569] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:00,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:00,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:00,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403658943] [2022-04-05 04:12:00,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:00,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:00,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:00,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:00,717 INFO L87 Difference]: Start difference. First operand 659 states and 829 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:12:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:02,076 INFO L93 Difference]: Finished difference Result 838 states and 1074 transitions. [2022-04-05 04:12:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:12:02,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2022-04-05 04:12:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:02,080 INFO L225 Difference]: With dead ends: 838 [2022-04-05 04:12:02,080 INFO L226 Difference]: Without dead ends: 824 [2022-04-05 04:12:02,080 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-04-05 04:12:02,080 INFO L913 BasicCegarLoop]: 524 mSDtfsCounter, 1210 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:02,081 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 1007 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-04-05 04:12:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2022-04-05 04:12:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 515 states have (on average 1.254368932038835) internal successors, (646), 525 states have internal predecessors, (646), 71 states have call successors, (71), 46 states have call predecessors, (71), 56 states have return successors, (88), 72 states have call predecessors, (88), 62 states have call successors, (88) [2022-04-05 04:12:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2022-04-05 04:12:02,091 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 54 [2022-04-05 04:12:02,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:02,091 INFO L478 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2022-04-05 04:12:02,091 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-05 04:12:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2022-04-05 04:12:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-05 04:12:02,092 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:02,092 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 04:12:02,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:12:02,093 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1146238667, now seen corresponding path program 1 times [2022-04-05 04:12:02,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:02,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654626016] [2022-04-05 04:12:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:02,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-04-05 04:12:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-04-05 04:12:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,229 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 04:12:02,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:02,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654626016] [2022-04-05 04:12:02,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654626016] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:02,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:02,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:12:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462597391] [2022-04-05 04:12:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:02,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:12:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:12:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:12:02,230 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:02,872 INFO L93 Difference]: Finished difference Result 682 states and 853 transitions. [2022-04-05 04:12:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:12:02,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2022-04-05 04:12:02,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:02,875 INFO L225 Difference]: With dead ends: 682 [2022-04-05 04:12:02,875 INFO L226 Difference]: Without dead ends: 682 [2022-04-05 04:12:02,875 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:02,875 INFO L913 BasicCegarLoop]: 404 mSDtfsCounter, 759 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:02,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 851 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-05 04:12:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-04-05 04:12:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 648. [2022-04-05 04:12:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 519 states have (on average 1.2485549132947977) internal successors, (648), 530 states have internal predecessors, (648), 71 states have call successors, (71), 46 states have call predecessors, (71), 57 states have return successors, (92), 72 states have call predecessors, (92), 62 states have call successors, (92) [2022-04-05 04:12:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 811 transitions. [2022-04-05 04:12:02,886 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 811 transitions. Word has length 61 [2022-04-05 04:12:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:02,886 INFO L478 AbstractCegarLoop]: Abstraction has 648 states and 811 transitions. [2022-04-05 04:12:02,886 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 811 transitions. [2022-04-05 04:12:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:12:02,888 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:02,888 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] [2022-04-05 04:12:02,888 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:12:02,888 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -852745671, now seen corresponding path program 1 times [2022-04-05 04:12:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:02,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196861885] [2022-04-05 04:12:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:02,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-04-05 04:12:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:03,115 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 04:12:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:03,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196861885] [2022-04-05 04:12:03,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196861885] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:03,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:03,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544764149] [2022-04-05 04:12:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:03,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:03,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:03,117 INFO L87 Difference]: Start difference. First operand 648 states and 811 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:04,132 INFO L93 Difference]: Finished difference Result 631 states and 782 transitions. [2022-04-05 04:12:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 04:12:04,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 64 [2022-04-05 04:12:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:04,135 INFO L225 Difference]: With dead ends: 631 [2022-04-05 04:12:04,135 INFO L226 Difference]: Without dead ends: 631 [2022-04-05 04:12:04,135 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:04,135 INFO L913 BasicCegarLoop]: 407 mSDtfsCounter, 337 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:04,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1211 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:04,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-04-05 04:12:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 593. [2022-04-05 04:12:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 472 states have (on average 1.2372881355932204) internal successors, (584), 480 states have internal predecessors, (584), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (81), 68 states have call predecessors, (81), 60 states have call successors, (81) [2022-04-05 04:12:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2022-04-05 04:12:04,144 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 64 [2022-04-05 04:12:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:04,144 INFO L478 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2022-04-05 04:12:04,144 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2022-04-05 04:12:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-05 04:12:04,145 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:04,145 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:04,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:12:04,146 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:04,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1291608918, now seen corresponding path program 1 times [2022-04-05 04:12:04,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:04,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513660232] [2022-04-05 04:12:04,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:04,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-05 04:12:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:04,351 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 04:12:04,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:04,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513660232] [2022-04-05 04:12:04,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513660232] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:04,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:04,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:04,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632518618] [2022-04-05 04:12:04,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:04,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:04,352 INFO L87 Difference]: Start difference. First operand 593 states and 733 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:05,727 INFO L93 Difference]: Finished difference Result 635 states and 782 transitions. [2022-04-05 04:12:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:12:05,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2022-04-05 04:12:05,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:05,729 INFO L225 Difference]: With dead ends: 635 [2022-04-05 04:12:05,729 INFO L226 Difference]: Without dead ends: 617 [2022-04-05 04:12:05,729 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:05,730 INFO L913 BasicCegarLoop]: 386 mSDtfsCounter, 481 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:05,730 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 1233 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:12:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-04-05 04:12:05,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2022-04-05 04:12:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 469 states have (on average 1.2388059701492538) internal successors, (581), 478 states have internal predecessors, (581), 68 states have call successors, (68), 45 states have call predecessors, (68), 52 states have return successors, (80), 67 states have call predecessors, (80), 60 states have call successors, (80) [2022-04-05 04:12:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 729 transitions. [2022-04-05 04:12:05,738 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 729 transitions. Word has length 59 [2022-04-05 04:12:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:05,738 INFO L478 AbstractCegarLoop]: Abstraction has 590 states and 729 transitions. [2022-04-05 04:12:05,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 729 transitions. [2022-04-05 04:12:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-04-05 04:12:05,740 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:05,740 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 04:12:05,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:12:05,740 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:05,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:05,740 INFO L85 PathProgramCache]: Analyzing trace with hash -565629154, now seen corresponding path program 1 times [2022-04-05 04:12:05,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:05,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428054674] [2022-04-05 04:12:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:05,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-05 04:12:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:05,917 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 04:12:05,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:05,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428054674] [2022-04-05 04:12:05,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428054674] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:05,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:05,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:12:05,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498471165] [2022-04-05 04:12:05,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:05,918 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:12:05,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:05,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:12:05,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:05,919 INFO L87 Difference]: Start difference. First operand 590 states and 729 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:07,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:07,012 INFO L93 Difference]: Finished difference Result 628 states and 773 transitions. [2022-04-05 04:12:07,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:12:07,015 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-04-05 04:12:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:07,016 INFO L225 Difference]: With dead ends: 628 [2022-04-05 04:12:07,017 INFO L226 Difference]: Without dead ends: 613 [2022-04-05 04:12:07,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:07,017 INFO L913 BasicCegarLoop]: 417 mSDtfsCounter, 448 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:07,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1666 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-04-05 04:12:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 586. [2022-04-05 04:12:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 466 states have (on average 1.238197424892704) internal successors, (577), 475 states have internal predecessors, (577), 67 states have call successors, (67), 45 states have call predecessors, (67), 52 states have return successors, (79), 66 states have call predecessors, (79), 59 states have call successors, (79) [2022-04-05 04:12:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 723 transitions. [2022-04-05 04:12:07,031 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 723 transitions. Word has length 58 [2022-04-05 04:12:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:07,031 INFO L478 AbstractCegarLoop]: Abstraction has 586 states and 723 transitions. [2022-04-05 04:12:07,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 723 transitions. [2022-04-05 04:12:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:12:07,032 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:07,032 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 04:12:07,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:12:07,033 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:07,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash 167534806, now seen corresponding path program 1 times [2022-04-05 04:12:07,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:07,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141652559] [2022-04-05 04:12:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:07,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-04-05 04:12:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:07,257 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 04:12:07,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:07,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141652559] [2022-04-05 04:12:07,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141652559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:07,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:07,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:07,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242342799] [2022-04-05 04:12:07,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:07,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:07,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:07,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:07,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:07,259 INFO L87 Difference]: Start difference. First operand 586 states and 723 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:08,396 INFO L93 Difference]: Finished difference Result 641 states and 785 transitions. [2022-04-05 04:12:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:12:08,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2022-04-05 04:12:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:08,398 INFO L225 Difference]: With dead ends: 641 [2022-04-05 04:12:08,398 INFO L226 Difference]: Without dead ends: 620 [2022-04-05 04:12:08,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:08,399 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 420 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:08,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 951 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-04-05 04:12:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 581. [2022-04-05 04:12:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 463 states have (on average 1.2354211663066954) internal successors, (572), 471 states have internal predecessors, (572), 66 states have call successors, (66), 45 states have call predecessors, (66), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2022-04-05 04:12:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 715 transitions. [2022-04-05 04:12:08,407 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 715 transitions. Word has length 60 [2022-04-05 04:12:08,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:08,407 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 715 transitions. [2022-04-05 04:12:08,407 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 715 transitions. [2022-04-05 04:12:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:12:08,408 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:08,408 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:08,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:12:08,408 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:08,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1284427578, now seen corresponding path program 1 times [2022-04-05 04:12:08,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:08,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066732348] [2022-04-05 04:12:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:08,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-04-05 04:12:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:08,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:08,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066732348] [2022-04-05 04:12:08,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066732348] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:08,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:08,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016371192] [2022-04-05 04:12:08,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:08,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:08,615 INFO L87 Difference]: Start difference. First operand 581 states and 715 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:09,485 INFO L93 Difference]: Finished difference Result 614 states and 756 transitions. [2022-04-05 04:12:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-05 04:12:09,486 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-04-05 04:12:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:09,489 INFO L225 Difference]: With dead ends: 614 [2022-04-05 04:12:09,489 INFO L226 Difference]: Without dead ends: 614 [2022-04-05 04:12:09,489 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:09,489 INFO L913 BasicCegarLoop]: 383 mSDtfsCounter, 890 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:09,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 1010 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-04-05 04:12:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 581. [2022-04-05 04:12:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 463 states have (on average 1.2311015118790496) internal successors, (570), 471 states have internal predecessors, (570), 66 states have call successors, (66), 45 states have call predecessors, (66), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2022-04-05 04:12:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 713 transitions. [2022-04-05 04:12:09,498 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 713 transitions. Word has length 68 [2022-04-05 04:12:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:09,498 INFO L478 AbstractCegarLoop]: Abstraction has 581 states and 713 transitions. [2022-04-05 04:12:09,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 9 states have call predecessors, (11), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 713 transitions. [2022-04-05 04:12:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:12:09,499 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:09,500 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 04:12:09,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:12:09,500 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash 122742069, now seen corresponding path program 1 times [2022-04-05 04:12:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:09,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107365526] [2022-04-05 04:12:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:09,689 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 04:12:09,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:09,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107365526] [2022-04-05 04:12:09,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107365526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:09,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:09,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-05 04:12:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991849200] [2022-04-05 04:12:09,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:09,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-05 04:12:09,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-05 04:12:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:12:09,692 INFO L87 Difference]: Start difference. First operand 581 states and 713 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:10,790 INFO L93 Difference]: Finished difference Result 611 states and 750 transitions. [2022-04-05 04:12:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-05 04:12:10,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2022-04-05 04:12:10,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:10,793 INFO L225 Difference]: With dead ends: 611 [2022-04-05 04:12:10,793 INFO L226 Difference]: Without dead ends: 611 [2022-04-05 04:12:10,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:10,794 INFO L913 BasicCegarLoop]: 389 mSDtfsCounter, 389 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:10,794 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 874 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-04-05 04:12:10,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 585. [2022-04-05 04:12:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 466 states have (on average 1.2296137339055795) internal successors, (573), 474 states have internal predecessors, (573), 66 states have call successors, (66), 45 states have call predecessors, (66), 52 states have return successors, (78), 66 states have call predecessors, (78), 58 states have call successors, (78) [2022-04-05 04:12:10,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 717 transitions. [2022-04-05 04:12:10,802 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 717 transitions. Word has length 63 [2022-04-05 04:12:10,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:10,802 INFO L478 AbstractCegarLoop]: Abstraction has 585 states and 717 transitions. [2022-04-05 04:12:10,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 717 transitions. [2022-04-05 04:12:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:12:10,803 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:10,803 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 04:12:10,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:12:10,803 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1923447467, now seen corresponding path program 1 times [2022-04-05 04:12:10,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:10,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579106042] [2022-04-05 04:12:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:10,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:11,018 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 04:12:11,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:11,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579106042] [2022-04-05 04:12:11,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579106042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:11,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:11,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127247579] [2022-04-05 04:12:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:11,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:11,020 INFO L87 Difference]: Start difference. First operand 585 states and 717 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:12,239 INFO L93 Difference]: Finished difference Result 594 states and 727 transitions. [2022-04-05 04:12:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:12,240 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2022-04-05 04:12:12,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:12,242 INFO L225 Difference]: With dead ends: 594 [2022-04-05 04:12:12,242 INFO L226 Difference]: Without dead ends: 594 [2022-04-05 04:12:12,242 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-04-05 04:12:12,243 INFO L913 BasicCegarLoop]: 378 mSDtfsCounter, 511 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:12,243 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1073 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 04:12:12,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-04-05 04:12:12,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 571. [2022-04-05 04:12:12,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 454 states have (on average 1.224669603524229) internal successors, (556), 461 states have internal predecessors, (556), 65 states have call successors, (65), 45 states have call predecessors, (65), 51 states have return successors, (77), 65 states have call predecessors, (77), 58 states have call successors, (77) [2022-04-05 04:12:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 698 transitions. [2022-04-05 04:12:12,250 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 698 transitions. Word has length 63 [2022-04-05 04:12:12,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:12,250 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 698 transitions. [2022-04-05 04:12:12,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (8), 7 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-04-05 04:12:12,250 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 698 transitions. [2022-04-05 04:12:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:12:12,251 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:12,251 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 04:12:12,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:12:12,252 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1303988576, now seen corresponding path program 1 times [2022-04-05 04:12:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:12,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065599332] [2022-04-05 04:12:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:12,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:12,450 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 04:12:12,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065599332] [2022-04-05 04:12:12,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065599332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:12,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:12,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:12,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116297122] [2022-04-05 04:12:12,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:12,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:12,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:12,452 INFO L87 Difference]: Start difference. First operand 571 states and 698 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:13,762 INFO L93 Difference]: Finished difference Result 593 states and 725 transitions. [2022-04-05 04:12:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2022-04-05 04:12:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:13,764 INFO L225 Difference]: With dead ends: 593 [2022-04-05 04:12:13,764 INFO L226 Difference]: Without dead ends: 590 [2022-04-05 04:12:13,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-04-05 04:12:13,764 INFO L913 BasicCegarLoop]: 379 mSDtfsCounter, 271 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:13,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1088 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:12:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-04-05 04:12:13,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2022-04-05 04:12:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 448 states have (on average 1.2276785714285714) internal successors, (550), 456 states have internal predecessors, (550), 64 states have call successors, (64), 45 states have call predecessors, (64), 50 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-04-05 04:12:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 688 transitions. [2022-04-05 04:12:13,789 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 688 transitions. Word has length 63 [2022-04-05 04:12:13,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:13,789 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 688 transitions. [2022-04-05 04:12:13,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 688 transitions. [2022-04-05 04:12:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:13,791 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:13,791 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 04:12:13,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:12:13,791 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:13,791 INFO L85 PathProgramCache]: Analyzing trace with hash -343974296, now seen corresponding path program 1 times [2022-04-05 04:12:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:13,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350412393] [2022-04-05 04:12:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-04-05 04:12:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:13,972 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 1 [2022-04-05 04:12:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:13,985 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 04:12:13,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350412393] [2022-04-05 04:12:13,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350412393] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:13,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:13,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:13,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167303203] [2022-04-05 04:12:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:13,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:13,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:13,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:13,987 INFO L87 Difference]: Start difference. First operand 563 states and 688 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-04-05 04:12:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:14,814 INFO L93 Difference]: Finished difference Result 615 states and 755 transitions. [2022-04-05 04:12:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-05 04:12:14,814 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2022-04-05 04:12:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:14,816 INFO L225 Difference]: With dead ends: 615 [2022-04-05 04:12:14,816 INFO L226 Difference]: Without dead ends: 615 [2022-04-05 04:12:14,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:14,817 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 505 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:14,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 1413 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:14,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-04-05 04:12:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 563. [2022-04-05 04:12:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 448 states have (on average 1.2232142857142858) internal successors, (548), 456 states have internal predecessors, (548), 64 states have call successors, (64), 45 states have call predecessors, (64), 50 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-04-05 04:12:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 686 transitions. [2022-04-05 04:12:14,824 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 686 transitions. Word has length 71 [2022-04-05 04:12:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:14,824 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 686 transitions. [2022-04-05 04:12:14,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-04-05 04:12:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 686 transitions. [2022-04-05 04:12:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:12:14,825 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:14,825 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] [2022-04-05 04:12:14,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:12:14,826 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash -795445846, now seen corresponding path program 1 times [2022-04-05 04:12:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:14,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983557285] [2022-04-05 04:12:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:14,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:15,016 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 04:12:15,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:15,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983557285] [2022-04-05 04:12:15,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983557285] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:15,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:15,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:12:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802825527] [2022-04-05 04:12:15,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:15,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:12:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:12:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:12:15,019 INFO L87 Difference]: Start difference. First operand 563 states and 686 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:16,092 INFO L93 Difference]: Finished difference Result 575 states and 704 transitions. [2022-04-05 04:12:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:16,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2022-04-05 04:12:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:16,094 INFO L225 Difference]: With dead ends: 575 [2022-04-05 04:12:16,094 INFO L226 Difference]: Without dead ends: 575 [2022-04-05 04:12:16,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:16,094 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 407 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:16,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 925 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-04-05 04:12:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 543. [2022-04-05 04:12:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 431 states have (on average 1.2273781902552203) internal successors, (529), 439 states have internal predecessors, (529), 63 states have call successors, (63), 44 states have call predecessors, (63), 48 states have return successors, (72), 60 states have call predecessors, (72), 56 states have call successors, (72) [2022-04-05 04:12:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 664 transitions. [2022-04-05 04:12:16,101 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 664 transitions. Word has length 64 [2022-04-05 04:12:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:16,102 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 664 transitions. [2022-04-05 04:12:16,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 8 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-04-05 04:12:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 664 transitions. [2022-04-05 04:12:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:12:16,103 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:16,103 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] [2022-04-05 04:12:16,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:12:16,103 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1222711343, now seen corresponding path program 1 times [2022-04-05 04:12:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:16,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548594264] [2022-04-05 04:12:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:16,287 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 04:12:16,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:16,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548594264] [2022-04-05 04:12:16,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548594264] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:16,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:16,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424662621] [2022-04-05 04:12:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:16,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:16,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:16,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:16,288 INFO L87 Difference]: Start difference. First operand 543 states and 664 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:17,583 INFO L93 Difference]: Finished difference Result 584 states and 712 transitions. [2022-04-05 04:12:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2022-04-05 04:12:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:17,584 INFO L225 Difference]: With dead ends: 584 [2022-04-05 04:12:17,584 INFO L226 Difference]: Without dead ends: 566 [2022-04-05 04:12:17,584 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:17,585 INFO L913 BasicCegarLoop]: 388 mSDtfsCounter, 197 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 2688 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:17,585 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1749 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2688 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-05 04:12:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-04-05 04:12:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 539. [2022-04-05 04:12:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 428 states have (on average 1.2266355140186915) internal successors, (525), 436 states have internal predecessors, (525), 62 states have call successors, (62), 44 states have call predecessors, (62), 48 states have return successors, (71), 59 states have call predecessors, (71), 55 states have call successors, (71) [2022-04-05 04:12:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 658 transitions. [2022-04-05 04:12:17,592 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 658 transitions. Word has length 63 [2022-04-05 04:12:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:17,592 INFO L478 AbstractCegarLoop]: Abstraction has 539 states and 658 transitions. [2022-04-05 04:12:17,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 658 transitions. [2022-04-05 04:12:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:12:17,593 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:17,593 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] [2022-04-05 04:12:17,593 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:12:17,593 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:17,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:17,594 INFO L85 PathProgramCache]: Analyzing trace with hash 104682271, now seen corresponding path program 1 times [2022-04-05 04:12:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:17,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110815925] [2022-04-05 04:12:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-05 04:12:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:17,782 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 04:12:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:17,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110815925] [2022-04-05 04:12:17,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110815925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:17,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:17,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-05 04:12:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682085326] [2022-04-05 04:12:17,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:17,783 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-05 04:12:17,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:17,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-05 04:12:17,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:17,784 INFO L87 Difference]: Start difference. First operand 539 states and 658 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:18,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:18,748 INFO L93 Difference]: Finished difference Result 574 states and 699 transitions. [2022-04-05 04:12:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:18,748 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-04-05 04:12:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:18,750 INFO L225 Difference]: With dead ends: 574 [2022-04-05 04:12:18,750 INFO L226 Difference]: Without dead ends: 555 [2022-04-05 04:12:18,751 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:18,759 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 326 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:18,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1564 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:12:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-04-05 04:12:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 528. [2022-04-05 04:12:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 419 states have (on average 1.224343675417661) internal successors, (513), 427 states have internal predecessors, (513), 61 states have call successors, (61), 44 states have call predecessors, (61), 47 states have return successors, (69), 57 states have call predecessors, (69), 54 states have call successors, (69) [2022-04-05 04:12:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 643 transitions. [2022-04-05 04:12:18,766 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 643 transitions. Word has length 64 [2022-04-05 04:12:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:18,766 INFO L478 AbstractCegarLoop]: Abstraction has 528 states and 643 transitions. [2022-04-05 04:12:18,766 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 643 transitions. [2022-04-05 04:12:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:12:18,768 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:18,768 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] [2022-04-05 04:12:18,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:12:18,768 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1688169128, now seen corresponding path program 1 times [2022-04-05 04:12:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:18,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786731427] [2022-04-05 04:12:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:18,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:18,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:18,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786731427] [2022-04-05 04:12:18,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786731427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:18,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:18,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122985048] [2022-04-05 04:12:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:18,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:18,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:18,977 INFO L87 Difference]: Start difference. First operand 528 states and 643 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:19,951 INFO L93 Difference]: Finished difference Result 569 states and 691 transitions. [2022-04-05 04:12:19,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:19,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-04-05 04:12:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:19,952 INFO L225 Difference]: With dead ends: 569 [2022-04-05 04:12:19,952 INFO L226 Difference]: Without dead ends: 550 [2022-04-05 04:12:19,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:19,953 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 461 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:19,953 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1663 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-05 04:12:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-04-05 04:12:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 523. [2022-04-05 04:12:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 415 states have (on average 1.2240963855421687) internal successors, (508), 423 states have internal predecessors, (508), 60 states have call successors, (60), 44 states have call predecessors, (60), 47 states have return successors, (68), 56 states have call predecessors, (68), 53 states have call successors, (68) [2022-04-05 04:12:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 636 transitions. [2022-04-05 04:12:19,959 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 636 transitions. Word has length 64 [2022-04-05 04:12:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:19,960 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 636 transitions. [2022-04-05 04:12:19,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 636 transitions. [2022-04-05 04:12:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:12:19,961 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:19,961 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] [2022-04-05 04:12:19,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:12:19,961 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1342005334, now seen corresponding path program 1 times [2022-04-05 04:12:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:19,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012291408] [2022-04-05 04:12:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:19,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:20,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:20,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012291408] [2022-04-05 04:12:20,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012291408] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:20,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:20,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:20,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187318737] [2022-04-05 04:12:20,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:20,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:20,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:20,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:20,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:20,156 INFO L87 Difference]: Start difference. First operand 523 states and 636 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:21,020 INFO L93 Difference]: Finished difference Result 564 states and 684 transitions. [2022-04-05 04:12:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:21,020 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-04-05 04:12:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:21,021 INFO L225 Difference]: With dead ends: 564 [2022-04-05 04:12:21,021 INFO L226 Difference]: Without dead ends: 546 [2022-04-05 04:12:21,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:21,022 INFO L913 BasicCegarLoop]: 366 mSDtfsCounter, 457 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:21,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1597 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-04-05 04:12:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 519. [2022-04-05 04:12:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2233009708737863) internal successors, (504), 420 states have internal predecessors, (504), 59 states have call successors, (59), 44 states have call predecessors, (59), 47 states have return successors, (67), 55 states have call predecessors, (67), 52 states have call successors, (67) [2022-04-05 04:12:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 630 transitions. [2022-04-05 04:12:21,028 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 630 transitions. Word has length 64 [2022-04-05 04:12:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:21,028 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 630 transitions. [2022-04-05 04:12:21,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 630 transitions. [2022-04-05 04:12:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-05 04:12:21,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:21,030 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 04:12:21,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 04:12:21,030 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash -831773029, now seen corresponding path program 1 times [2022-04-05 04:12:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:21,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239381930] [2022-04-05 04:12:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-04-05 04:12:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:21,183 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 04:12:21,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:21,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239381930] [2022-04-05 04:12:21,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239381930] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:21,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:21,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-05 04:12:21,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30591159] [2022-04-05 04:12:21,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:21,184 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:12:21,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:12:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:12:21,184 INFO L87 Difference]: Start difference. First operand 519 states and 630 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:21,922 INFO L93 Difference]: Finished difference Result 690 states and 836 transitions. [2022-04-05 04:12:21,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-05 04:12:21,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-04-05 04:12:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:21,924 INFO L225 Difference]: With dead ends: 690 [2022-04-05 04:12:21,924 INFO L226 Difference]: Without dead ends: 690 [2022-04-05 04:12:21,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:12:21,925 INFO L913 BasicCegarLoop]: 426 mSDtfsCounter, 715 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:21,925 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 1022 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-04-05 04:12:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 640. [2022-04-05 04:12:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 505 states have (on average 1.2158415841584158) internal successors, (614), 515 states have internal predecessors, (614), 72 states have call successors, (72), 54 states have call predecessors, (72), 62 states have return successors, (92), 71 states have call predecessors, (92), 66 states have call successors, (92) [2022-04-05 04:12:21,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 778 transitions. [2022-04-05 04:12:21,933 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 778 transitions. Word has length 70 [2022-04-05 04:12:21,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:21,933 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 778 transitions. [2022-04-05 04:12:21,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 9 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:21,934 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 778 transitions. [2022-04-05 04:12:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:12:21,935 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:21,935 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 04:12:21,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 04:12:21,935 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -434332053, now seen corresponding path program 1 times [2022-04-05 04:12:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:21,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622481428] [2022-04-05 04:12:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-04-05 04:12:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:22,120 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 04:12:22,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:22,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622481428] [2022-04-05 04:12:22,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622481428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:22,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:22,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:22,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178894978] [2022-04-05 04:12:22,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:22,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:22,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:22,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:22,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:22,122 INFO L87 Difference]: Start difference. First operand 640 states and 778 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:22,945 INFO L93 Difference]: Finished difference Result 681 states and 827 transitions. [2022-04-05 04:12:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-05 04:12:22,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2022-04-05 04:12:22,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:22,947 INFO L225 Difference]: With dead ends: 681 [2022-04-05 04:12:22,947 INFO L226 Difference]: Without dead ends: 641 [2022-04-05 04:12:22,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:22,948 INFO L913 BasicCegarLoop]: 358 mSDtfsCounter, 725 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:22,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 1540 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-04-05 04:12:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 614. [2022-04-05 04:12:22,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 484 states have (on average 1.2148760330578512) internal successors, (588), 494 states have internal predecessors, (588), 69 states have call successors, (69), 52 states have call predecessors, (69), 60 states have return successors, (89), 68 states have call predecessors, (89), 63 states have call successors, (89) [2022-04-05 04:12:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 746 transitions. [2022-04-05 04:12:22,954 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 746 transitions. Word has length 68 [2022-04-05 04:12:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:22,954 INFO L478 AbstractCegarLoop]: Abstraction has 614 states and 746 transitions. [2022-04-05 04:12:22,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-05 04:12:22,954 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 746 transitions. [2022-04-05 04:12:22,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-04-05 04:12:22,954 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:22,954 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 04:12:22,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 04:12:22,955 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:22,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:22,955 INFO L85 PathProgramCache]: Analyzing trace with hash 716016786, now seen corresponding path program 1 times [2022-04-05 04:12:22,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:22,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487292188] [2022-04-05 04:12:22,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:22,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-04-05 04:12:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-05 04:12:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-04-05 04:12:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-04-05 04:12:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:23,189 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 04:12:23,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:23,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487292188] [2022-04-05 04:12:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487292188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:23,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-05 04:12:23,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367908246] [2022-04-05 04:12:23,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:23,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-05 04:12:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-05 04:12:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-04-05 04:12:23,191 INFO L87 Difference]: Start difference. First operand 614 states and 746 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:24,326 INFO L93 Difference]: Finished difference Result 651 states and 790 transitions. [2022-04-05 04:12:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:12:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-04-05 04:12:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:24,328 INFO L225 Difference]: With dead ends: 651 [2022-04-05 04:12:24,328 INFO L226 Difference]: Without dead ends: 600 [2022-04-05 04:12:24,328 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:24,329 INFO L913 BasicCegarLoop]: 324 mSDtfsCounter, 715 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:24,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 972 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-05 04:12:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-04-05 04:12:24,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-04-05 04:12:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 450 states have (on average 1.208888888888889) internal successors, (544), 460 states have internal predecessors, (544), 65 states have call successors, (65), 49 states have call predecessors, (65), 57 states have return successors, (85), 64 states have call predecessors, (85), 59 states have call successors, (85) [2022-04-05 04:12:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 694 transitions. [2022-04-05 04:12:24,336 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 694 transitions. Word has length 71 [2022-04-05 04:12:24,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:24,336 INFO L478 AbstractCegarLoop]: Abstraction has 573 states and 694 transitions. [2022-04-05 04:12:24,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (9), 8 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-05 04:12:24,336 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 694 transitions. [2022-04-05 04:12:24,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 04:12:24,337 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:24,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:24,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 04:12:24,338 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:24,338 INFO L85 PathProgramCache]: Analyzing trace with hash 51937116, now seen corresponding path program 1 times [2022-04-05 04:12:24,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:24,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565849775] [2022-04-05 04:12:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:24,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-04-05 04:12:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-04-05 04:12:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:12:24,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:24,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565849775] [2022-04-05 04:12:24,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565849775] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:24,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:24,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-05 04:12:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982384579] [2022-04-05 04:12:24,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:24,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-05 04:12:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-05 04:12:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:12:24,519 INFO L87 Difference]: Start difference. First operand 573 states and 694 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-04-05 04:12:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:25,234 INFO L93 Difference]: Finished difference Result 588 states and 706 transitions. [2022-04-05 04:12:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-05 04:12:25,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-04-05 04:12:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:25,236 INFO L225 Difference]: With dead ends: 588 [2022-04-05 04:12:25,236 INFO L226 Difference]: Without dead ends: 588 [2022-04-05 04:12:25,236 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-04-05 04:12:25,236 INFO L913 BasicCegarLoop]: 411 mSDtfsCounter, 520 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:25,237 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1181 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-05 04:12:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-04-05 04:12:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 555. [2022-04-05 04:12:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.2087155963302751) internal successors, (527), 445 states have internal predecessors, (527), 63 states have call successors, (63), 49 states have call predecessors, (63), 55 states have return successors, (74), 61 states have call predecessors, (74), 57 states have call successors, (74) [2022-04-05 04:12:25,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2022-04-05 04:12:25,243 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 82 [2022-04-05 04:12:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:25,243 INFO L478 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2022-04-05 04:12:25,244 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (12), 9 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-04-05 04:12:25,244 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2022-04-05 04:12:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 04:12:25,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:25,245 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:25,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 04:12:25,245 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1630108315, now seen corresponding path program 1 times [2022-04-05 04:12:25,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:25,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838420761] [2022-04-05 04:12:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:25,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-04-05 04:12:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-04-05 04:12:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:25,482 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 04:12:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:25,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838420761] [2022-04-05 04:12:25,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838420761] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:25,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:25,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-05 04:12:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214560024] [2022-04-05 04:12:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:25,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-05 04:12:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-05 04:12:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:12:25,485 INFO L87 Difference]: Start difference. First operand 555 states and 664 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:26,289 INFO L93 Difference]: Finished difference Result 664 states and 832 transitions. [2022-04-05 04:12:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-05 04:12:26,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2022-04-05 04:12:26,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:26,291 INFO L225 Difference]: With dead ends: 664 [2022-04-05 04:12:26,292 INFO L226 Difference]: Without dead ends: 664 [2022-04-05 04:12:26,292 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-04-05 04:12:26,292 INFO L913 BasicCegarLoop]: 357 mSDtfsCounter, 460 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:26,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1756 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-04-05 04:12:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 519. [2022-04-05 04:12:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2087378640776698) internal successors, (498), 419 states have internal predecessors, (498), 56 states have call successors, (56), 43 states have call predecessors, (56), 50 states have return successors, (64), 57 states have call predecessors, (64), 51 states have call successors, (64) [2022-04-05 04:12:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 618 transitions. [2022-04-05 04:12:26,298 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 618 transitions. Word has length 83 [2022-04-05 04:12:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:26,298 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 618 transitions. [2022-04-05 04:12:26,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (14), 10 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 618 transitions. [2022-04-05 04:12:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-04-05 04:12:26,299 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:26,299 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:26,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 04:12:26,299 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1973979160, now seen corresponding path program 1 times [2022-04-05 04:12:26,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:26,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234786662] [2022-04-05 04:12:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-04-05 04:12:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:26,554 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 04:12:26,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:26,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234786662] [2022-04-05 04:12:26,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234786662] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:26,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:26,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:12:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786966280] [2022-04-05 04:12:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:26,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:12:26,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:12:26,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:26,555 INFO L87 Difference]: Start difference. First operand 519 states and 618 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:27,515 INFO L93 Difference]: Finished difference Result 594 states and 707 transitions. [2022-04-05 04:12:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-05 04:12:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2022-04-05 04:12:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:27,517 INFO L225 Difference]: With dead ends: 594 [2022-04-05 04:12:27,517 INFO L226 Difference]: Without dead ends: 576 [2022-04-05 04:12:27,517 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-04-05 04:12:27,518 INFO L913 BasicCegarLoop]: 307 mSDtfsCounter, 367 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:27,518 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1724 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-05 04:12:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-04-05 04:12:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 527. [2022-04-05 04:12:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 419 states have (on average 1.2052505966587113) internal successors, (505), 426 states have internal predecessors, (505), 56 states have call successors, (56), 43 states have call predecessors, (56), 51 states have return successors, (67), 58 states have call predecessors, (67), 51 states have call successors, (67) [2022-04-05 04:12:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 628 transitions. [2022-04-05 04:12:27,524 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 628 transitions. Word has length 88 [2022-04-05 04:12:27,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:27,524 INFO L478 AbstractCegarLoop]: Abstraction has 527 states and 628 transitions. [2022-04-05 04:12:27,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:27,525 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 628 transitions. [2022-04-05 04:12:27,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-05 04:12:27,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:27,526 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:27,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 04:12:27,526 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:27,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1885499687, now seen corresponding path program 1 times [2022-04-05 04:12:27,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:27,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837091825] [2022-04-05 04:12:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:27,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-04-05 04:12:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-04-05 04:12:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-04-05 04:12:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-04-05 04:12:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:27,742 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 04:12:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:27,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837091825] [2022-04-05 04:12:27,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837091825] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:27,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:27,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-04-05 04:12:27,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190220605] [2022-04-05 04:12:27,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:27,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-05 04:12:27,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-05 04:12:27,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-04-05 04:12:27,744 INFO L87 Difference]: Start difference. First operand 527 states and 628 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:28,549 INFO L93 Difference]: Finished difference Result 594 states and 706 transitions. [2022-04-05 04:12:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-05 04:12:28,550 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2022-04-05 04:12:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:28,551 INFO L225 Difference]: With dead ends: 594 [2022-04-05 04:12:28,551 INFO L226 Difference]: Without dead ends: 576 [2022-04-05 04:12:28,552 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-04-05 04:12:28,552 INFO L913 BasicCegarLoop]: 323 mSDtfsCounter, 414 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:28,552 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1926 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-04-05 04:12:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 519. [2022-04-05 04:12:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 412 states have (on average 1.2063106796116505) internal successors, (497), 419 states have internal predecessors, (497), 56 states have call successors, (56), 43 states have call predecessors, (56), 50 states have return successors, (64), 57 states have call predecessors, (64), 51 states have call successors, (64) [2022-04-05 04:12:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 617 transitions. [2022-04-05 04:12:28,558 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 617 transitions. Word has length 89 [2022-04-05 04:12:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:28,558 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 617 transitions. [2022-04-05 04:12:28,558 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-04-05 04:12:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 617 transitions. [2022-04-05 04:12:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 04:12:28,559 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:28,559 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:28,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 04:12:28,559 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:28,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:28,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1284112929, now seen corresponding path program 1 times [2022-04-05 04:12:28,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:28,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434576759] [2022-04-05 04:12:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:28,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:12:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-05 04:12:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-05 04:12:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-04-05 04:12:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-04-05 04:12:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-04-05 04:12:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-04-05 04:12:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:12:28,757 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 04:12:28,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:12:28,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434576759] [2022-04-05 04:12:28,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434576759] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:12:28,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:12:28,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-05 04:12:28,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563169027] [2022-04-05 04:12:28,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:12:28,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-05 04:12:28,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:12:28,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-05 04:12:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:12:28,759 INFO L87 Difference]: Start difference. First operand 519 states and 617 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-04-05 04:12:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:12:29,663 INFO L93 Difference]: Finished difference Result 666 states and 776 transitions. [2022-04-05 04:12:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-05 04:12:29,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 84 [2022-04-05 04:12:29,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:12:29,665 INFO L225 Difference]: With dead ends: 666 [2022-04-05 04:12:29,666 INFO L226 Difference]: Without dead ends: 666 [2022-04-05 04:12:29,669 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-04-05 04:12:29,669 INFO L913 BasicCegarLoop]: 336 mSDtfsCounter, 743 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:12:29,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 595 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 04:12:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-04-05 04:12:29,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 640. [2022-04-05 04:12:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 509 states have (on average 1.1984282907662083) internal successors, (610), 518 states have internal predecessors, (610), 64 states have call successors, (64), 55 states have call predecessors, (64), 66 states have return successors, (76), 67 states have call predecessors, (76), 59 states have call successors, (76) [2022-04-05 04:12:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 750 transitions. [2022-04-05 04:12:29,676 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 750 transitions. Word has length 84 [2022-04-05 04:12:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:12:29,677 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 750 transitions. [2022-04-05 04:12:29,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 5 states have internal predecessors, (68), 5 states have call successors, (9), 9 states have call predecessors, (9), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-04-05 04:12:29,677 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 750 transitions. [2022-04-05 04:12:29,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 04:12:29,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:12:29,679 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:12:29,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 04:12:29,679 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:12:29,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:12:29,679 INFO L85 PathProgramCache]: Analyzing trace with hash -356676981, now seen corresponding path program 1 times [2022-04-05 04:12:29,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:12:29,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196160689] [2022-04-05 04:12:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:12:29,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:12:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-05 04:12:29,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-05 04:12:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-05 04:12:29,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-05 04:12:29,784 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-05 04:12:29,784 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 04:12:29,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 04:12:29,791 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] [2022-04-05 04:12:29,794 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 04:12:29,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:12:29 BasicIcfg [2022-04-05 04:12:29,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 04:12:29,914 INFO L158 Benchmark]: Toolchain (without parser) took 71015.87ms. Allocated memory was 255.9MB in the beginning and 574.6MB in the end (delta: 318.8MB). Free memory was 199.2MB in the beginning and 262.5MB in the end (delta: -63.3MB). Peak memory consumption was 256.8MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,914 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 216.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 04:12:29,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.94ms. Allocated memory was 255.9MB in the beginning and 381.7MB in the end (delta: 125.8MB). Free memory was 199.1MB in the beginning and 338.8MB in the end (delta: -139.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,914 INFO L158 Benchmark]: Boogie Preprocessor took 99.42ms. Allocated memory is still 381.7MB. Free memory was 338.8MB in the beginning and 334.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,914 INFO L158 Benchmark]: RCFGBuilder took 1060.05ms. Allocated memory is still 381.7MB. Free memory was 334.6MB in the beginning and 281.1MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,919 INFO L158 Benchmark]: IcfgTransformer took 41.95ms. Allocated memory is still 381.7MB. Free memory was 281.1MB in the beginning and 274.3MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,919 INFO L158 Benchmark]: TraceAbstraction took 69335.21ms. Allocated memory was 381.7MB in the beginning and 574.6MB in the end (delta: 192.9MB). Free memory was 273.8MB in the beginning and 262.5MB in the end (delta: 11.3MB). Peak memory consumption was 205.8MB. Max. memory is 8.0GB. [2022-04-05 04:12:29,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 216.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.94ms. Allocated memory was 255.9MB in the beginning and 381.7MB in the end (delta: 125.8MB). Free memory was 199.1MB in the beginning and 338.8MB in the end (delta: -139.7MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 99.42ms. Allocated memory is still 381.7MB. Free memory was 338.8MB in the beginning and 334.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1060.05ms. Allocated memory is still 381.7MB. Free memory was 334.6MB in the beginning and 281.1MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * IcfgTransformer took 41.95ms. Allocated memory is still 381.7MB. Free memory was 281.1MB in the beginning and 274.3MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 69335.21ms. Allocated memory was 381.7MB in the beginning and 574.6MB in the end (delta: 192.9MB). Free memory was 273.8MB in the beginning and 262.5MB in the end (delta: 11.3MB). Peak memory consumption was 205.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1627]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [\old(compRegistered)=270, \old(customIrp)=262, \old(DC)=274, \old(DiskController)=286, \old(Executive)=276, \old(FlConfigCallBack)=263, \old(FloppyDiskPeripheral)=282, \old(FloppyThread)=260, \old(IPC)=267, \old(KernelMode)=264, \old(lowerDriverReturn)=275, \old(MaximumInterfaceType)=284, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=272, \old(MPR1)=269, \old(MPR3)=287, \old(myStatus)=283, \old(NP)=277, \old(PagingMutex)=273, \old(PagingReferenceCount)=279, \old(pended)=278, \old(s)=265, \old(setEventCalled)=261, \old(SKIP1)=266, \old(SKIP2)=271, \old(Suspended)=280, \old(UNLOADED)=285, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L705] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L157] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-5, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND FALSE !(tmp_ndt_12 == 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=1, UNLOADED=0, WaitMode=0, WaitReason=0] [L1096] return (-1073741823); VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=-1073741823, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=1, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=-1073741823, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=-3, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=-4, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 390 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.2s, OverallIterations: 54, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 57.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35795 SdHoareTripleChecker+Valid, 50.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35330 mSDsluCounter, 62536 SdHoareTripleChecker+Invalid, 42.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39522 mSDsCounter, 10961 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82568 IncrementalHoareTripleChecker+Invalid, 93529 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10961 mSolverCounterUnsat, 23014 mSDtfsCounter, 82568 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1176 GetRequests, 476 SyntacticMatches, 7 SemanticMatches, 693 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=19, InterpolantAutomatonStates: 615, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 53 MinimizatonAttempts, 2733 StatesRemovedByMinimization, 53 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 3004 NumberOfCodeBlocks, 3004 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2866 ConstructedInterpolants, 0 QuantifiedInterpolants, 14478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-05 04:12:29,951 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...