/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 02:49:09,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 02:49:09,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 02:49:09,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 02:49:09,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 02:49:09,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 02:49:09,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 02:49:09,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 02:49:09,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 02:49:09,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 02:49:09,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 02:49:09,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 02:49:09,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 02:49:09,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 02:49:09,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 02:49:09,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 02:49:09,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 02:49:09,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 02:49:09,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 02:49:09,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 02:49:09,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 02:49:09,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 02:49:09,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 02:49:09,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 02:49:09,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 02:49:09,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 02:49:09,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 02:49:09,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 02:49:09,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 02:49:09,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 02:49:09,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 02:49:09,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 02:49:09,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 02:49:09,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 02:49:09,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 02:49:09,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 02:49:09,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 02:49:09,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 02:49:09,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 02:49:09,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 02:49:09,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 02:49:09,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 02:49:09,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 02:49:09,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 02:49:09,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 02:49:09,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 02:49:09,785 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 02:49:09,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 02:49:09,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 02:49:09,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 02:49:09,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 02:49:09,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 02:49:09,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 02:49:09,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 02:49:09,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 02:49:09,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 02:49:09,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 02:49:09,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 02:49:09,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 02:49:09,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 02:49:09,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 02:49:09,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 02:49:09,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 02:49:09,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 02:49:09,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 02:49:09,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 02:49:09,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 02:49:09,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 02:49:09,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 02:49:09,792 INFO L138 SettingsManager]: * To the following directory=dump/ 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 02:49:10,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 02:49:10,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 02:49:10,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 02:49:10,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 02:49:10,203 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 02:49:10,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2020-10-28 02:49:10,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68b0e3477/2d52bcc5452940b1b68732a2c68022e5/FLAG01718d2d3 [2020-10-28 02:49:11,210 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 02:49:11,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2020-10-28 02:49:11,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68b0e3477/2d52bcc5452940b1b68732a2c68022e5/FLAG01718d2d3 [2020-10-28 02:49:11,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68b0e3477/2d52bcc5452940b1b68732a2c68022e5 [2020-10-28 02:49:11,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 02:49:11,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 02:49:11,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 02:49:11,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 02:49:11,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 02:49:11,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:49:11" (1/1) ... [2020-10-28 02:49:11,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c45d417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:11, skipping insertion in model container [2020-10-28 02:49:11,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:49:11" (1/1) ... [2020-10-28 02:49:11,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 02:49:11,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 02:49:13,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:49:13,238 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 02:49:13,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:49:13,807 INFO L208 MainTranslator]: Completed translation [2020-10-28 02:49:13,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13 WrapperNode [2020-10-28 02:49:13,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 02:49:13,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 02:49:13,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 02:49:13,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 02:49:13,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:13,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:13,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:13,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:14,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:14,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:14,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... [2020-10-28 02:49:14,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 02:49:14,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 02:49:14,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 02:49:14,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 02:49:14,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 02:49:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 02:49:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 02:49:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 02:49:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 02:49:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 02:49:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 02:49:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 02:49:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 02:49:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 02:49:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 02:49:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2020-10-28 02:49:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2020-10-28 02:49:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 02:49:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 02:49:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-28 02:49:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-28 02:49:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2020-10-28 02:49:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2020-10-28 02:49:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2020-10-28 02:49:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2020-10-28 02:49:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 02:49:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-28 02:49:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-28 02:49:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-28 02:49:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2020-10-28 02:49:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-28 02:49:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 02:49:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-28 02:49:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 02:49:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2020-10-28 02:49:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2020-10-28 02:49:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2020-10-28 02:49:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 02:49:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 02:49:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-28 02:49:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-28 02:49:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-28 02:49:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-28 02:49:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2020-10-28 02:49:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-28 02:49:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-28 02:49:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2020-10-28 02:49:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2020-10-28 02:49:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 02:49:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-28 02:49:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2020-10-28 02:49:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-28 02:49:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2020-10-28 02:49:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2020-10-28 02:49:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2020-10-28 02:49:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2020-10-28 02:49:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2020-10-28 02:49:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 02:49:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-28 02:49:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2020-10-28 02:49:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2020-10-28 02:49:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-28 02:49:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 02:49:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 02:49:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 02:49:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 02:49:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 02:49:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 02:49:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 02:49:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 02:49:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 02:49:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 02:49:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 02:49:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 02:49:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 02:49:14,271 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 02:49:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 02:49:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-28 02:49:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2020-10-28 02:49:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-28 02:49:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2020-10-28 02:49:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2020-10-28 02:49:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 02:49:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 02:49:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 02:49:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 02:49:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 02:49:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 02:49:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-28 02:49:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2020-10-28 02:49:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 02:49:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 02:49:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 02:49:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 02:49:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-28 02:49:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:49:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 02:49:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2020-10-28 02:49:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-28 02:49:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-28 02:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2020-10-28 02:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2020-10-28 02:49:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 02:49:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 02:49:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2020-10-28 02:49:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 02:49:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2020-10-28 02:49:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2020-10-28 02:49:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2020-10-28 02:49:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2020-10-28 02:49:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2020-10-28 02:49:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2020-10-28 02:49:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2020-10-28 02:49:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2020-10-28 02:49:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2020-10-28 02:49:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 02:49:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-28 02:49:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-28 02:49:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 02:49:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-28 02:49:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2020-10-28 02:49:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 02:49:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 02:49:19,947 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 02:49:19,948 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 02:49:19,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:49:19 BoogieIcfgContainer [2020-10-28 02:49:19,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 02:49:19,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 02:49:19,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 02:49:19,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 02:49:19,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:49:11" (1/3) ... [2020-10-28 02:49:19,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8bd668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:49:19, skipping insertion in model container [2020-10-28 02:49:19,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:49:13" (2/3) ... [2020-10-28 02:49:19,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8bd668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:49:19, skipping insertion in model container [2020-10-28 02:49:19,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:49:19" (3/3) ... [2020-10-28 02:49:19,962 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2020-10-28 02:49:19,975 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 02:49:19,982 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 02:49:19,999 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 02:49:20,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 02:49:20,033 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 02:49:20,033 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 02:49:20,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 02:49:20,034 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 02:49:20,034 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 02:49:20,034 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 02:49:20,034 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 02:49:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states. [2020-10-28 02:49:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 02:49:20,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:49:20,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:49:20,086 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:49:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:49:20,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1056371397, now seen corresponding path program 1 times [2020-10-28 02:49:20,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:49:20,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510135765] [2020-10-28 02:49:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:49:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:20,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:25,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:25,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 02:49:25,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 02:49:25,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5181 [2020-10-28 02:49:25,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:49:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 02:49:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 02:49:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 02:49:28,097 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 02:49:28,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:49:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:28,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:28,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:28,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-28 02:49:28,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 02:49:28,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:49:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:28,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:28,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:28,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:28,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:49:28,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:49:28,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510135765] [2020-10-28 02:49:28,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:49:28,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 02:49:28,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904500497] [2020-10-28 02:49:28,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 02:49:28,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:49:28,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 02:49:28,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 02:49:28,504 INFO L87 Difference]: Start difference. First operand 966 states. Second operand 5 states. [2020-10-28 02:49:32,756 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 02:49:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:49:53,876 INFO L93 Difference]: Finished difference Result 2016 states and 2648 transitions. [2020-10-28 02:49:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 02:49:53,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-28 02:49:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:49:53,917 INFO L225 Difference]: With dead ends: 2016 [2020-10-28 02:49:53,918 INFO L226 Difference]: Without dead ends: 1209 [2020-10-28 02:49:53,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 02:49:53,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-28 02:49:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1064. [2020-10-28 02:49:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-10-28 02:49:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1341 transitions. [2020-10-28 02:49:54,461 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1341 transitions. Word has length 29 [2020-10-28 02:49:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:49:54,462 INFO L481 AbstractCegarLoop]: Abstraction has 1064 states and 1341 transitions. [2020-10-28 02:49:54,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 02:49:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1341 transitions. [2020-10-28 02:49:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 02:49:54,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:49:54,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:49:54,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 02:49:54,478 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:49:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:49:54,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1854798328, now seen corresponding path program 1 times [2020-10-28 02:49:54,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:49:54,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86852060] [2020-10-28 02:49:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:49:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:54,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:57,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:57,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 02:49:57,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 02:49:57,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2799 [2020-10-28 02:49:57,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:57,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:49:57,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 02:49:57,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 02:49:57,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:59,892 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 02:49:59,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:49:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:59,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-28 02:50:00,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:50:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 02:50:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 02:50:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 02:50:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:50:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 02:50:00,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 02:50:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:50:00,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 02:50:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:50:00,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 02:50:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 02:50:00,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 02:50:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:00,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:00,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 02:50:00,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:50:00,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86852060] [2020-10-28 02:50:00,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:50:00,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 02:50:00,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410211339] [2020-10-28 02:50:00,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 02:50:00,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:50:00,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 02:50:00,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 02:50:00,611 INFO L87 Difference]: Start difference. First operand 1064 states and 1341 transitions. Second operand 6 states. [2020-10-28 02:50:02,981 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 02:50:07,592 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 02:50:22,114 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 02:50:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:50:40,816 INFO L93 Difference]: Finished difference Result 2288 states and 2917 transitions. [2020-10-28 02:50:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 02:50:40,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-28 02:50:40,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:50:40,834 INFO L225 Difference]: With dead ends: 2288 [2020-10-28 02:50:40,834 INFO L226 Difference]: Without dead ends: 2216 [2020-10-28 02:50:40,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 02:50:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2020-10-28 02:50:41,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1969. [2020-10-28 02:50:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-28 02:50:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2488 transitions. [2020-10-28 02:50:41,612 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2488 transitions. Word has length 52 [2020-10-28 02:50:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:50:41,612 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2488 transitions. [2020-10-28 02:50:41,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 02:50:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2488 transitions. [2020-10-28 02:50:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 02:50:41,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:50:41,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:50:41,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 02:50:41,616 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:50:41,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:50:41,616 INFO L82 PathProgramCache]: Analyzing trace with hash -981942266, now seen corresponding path program 1 times [2020-10-28 02:50:41,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:50:41,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539650340] [2020-10-28 02:50:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:50:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:41,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:41,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:42,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:46,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:46,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 02:50:46,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 02:50:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5155 [2020-10-28 02:50:46,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:50:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 02:50:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:50:46,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:49,572 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 02:50:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:50:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:49,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:49,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:49,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:49,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:49,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 02:50:49,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:49,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:49,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:49,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:50:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:49,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:49,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:49,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:49,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:49,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 02:50:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:49,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 02:50:50,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 02:50:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-28 02:50:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 02:50:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 02:50:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 02:50:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:50:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:50,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:50,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:50,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 02:50:50,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:50,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 02:50:50,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 02:50:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 02:50:50,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:50,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:50:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:50,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:50,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:50:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 02:50:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 02:50:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 02:50:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 02:50:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:50,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:51,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:51,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 02:50:51,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 02:50:51,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 02:50:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 02:50:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:51,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:50:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:51,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:51,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:51,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:51,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:51,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 02:50:51,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 02:50:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:50:51,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 02:50:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:51,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 02:50:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:50:51,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:50:51,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:50:51,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 02:50:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:50:51,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:50:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:50:51,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539650340] [2020-10-28 02:50:51,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:50:51,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-28 02:50:51,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593258872] [2020-10-28 02:50:51,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 02:50:51,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:50:51,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 02:50:51,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-28 02:50:51,413 INFO L87 Difference]: Start difference. First operand 1969 states and 2488 transitions. Second operand 18 states. [2020-10-28 02:51:07,306 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 626 [2020-10-28 02:51:11,129 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 630 [2020-10-28 02:51:14,179 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 630 [2020-10-28 02:51:17,102 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification that was a NOOP. DAG size: 630 [2020-10-28 02:51:20,555 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification that was a NOOP. DAG size: 637 [2020-10-28 02:51:23,517 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 629 [2020-10-28 02:51:26,690 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-28 02:51:29,766 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification that was a NOOP. DAG size: 646 [2020-10-28 02:51:32,955 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 02:51:35,838 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification that was a NOOP. DAG size: 635 [2020-10-28 02:51:38,682 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification that was a NOOP. DAG size: 627 [2020-10-28 02:51:41,731 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 644 [2020-10-28 02:51:44,671 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 644 [2020-10-28 02:51:48,066 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 625 [2020-10-28 02:51:52,415 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification that was a NOOP. DAG size: 628 [2020-10-28 02:51:55,416 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 628 [2020-10-28 02:51:58,212 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 628 [2020-10-28 02:52:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:52:29,383 INFO L93 Difference]: Finished difference Result 6331 states and 8064 transitions. [2020-10-28 02:52:29,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-28 02:52:29,384 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2020-10-28 02:52:29,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:52:29,412 INFO L225 Difference]: With dead ends: 6331 [2020-10-28 02:52:29,412 INFO L226 Difference]: Without dead ends: 4373 [2020-10-28 02:52:29,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=395, Invalid=1767, Unknown=0, NotChecked=0, Total=2162 [2020-10-28 02:52:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2020-10-28 02:52:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 3888. [2020-10-28 02:52:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3888 states. [2020-10-28 02:52:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 4932 transitions. [2020-10-28 02:52:30,882 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 4932 transitions. Word has length 59 [2020-10-28 02:52:30,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:52:30,882 INFO L481 AbstractCegarLoop]: Abstraction has 3888 states and 4932 transitions. [2020-10-28 02:52:30,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 02:52:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 4932 transitions. [2020-10-28 02:52:30,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 02:52:30,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:52:30,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:52:30,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 02:52:30,885 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:52:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:52:30,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1391685492, now seen corresponding path program 1 times [2020-10-28 02:52:30,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:52:30,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594698162] [2020-10-28 02:52:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:52:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:31,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:32,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:32,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 02:52:32,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:32,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-28 02:52:32,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 02:52:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 02:52:32,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:34,720 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 02:52:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:52:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:34,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:52:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:52:35,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 02:52:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 02:52:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 02:52:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 02:52:35,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:52:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 02:52:35,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 02:52:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 02:52:35,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:52:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:52:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:52:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 02:52:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 02:52:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 02:52:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:52:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:35,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:52:35,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 02:52:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:35,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 02:52:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:35,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:35,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:35,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:35,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:35,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:52:35,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:35,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:35,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:35,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:35,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:52:35,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594698162] [2020-10-28 02:52:35,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:52:35,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 02:52:35,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835021084] [2020-10-28 02:52:35,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 02:52:35,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:52:35,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 02:52:35,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 02:52:35,449 INFO L87 Difference]: Start difference. First operand 3888 states and 4932 transitions. Second operand 7 states. [2020-10-28 02:52:43,197 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 02:52:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:52:54,170 INFO L93 Difference]: Finished difference Result 4288 states and 5477 transitions. [2020-10-28 02:52:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 02:52:54,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-28 02:52:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:52:54,197 INFO L225 Difference]: With dead ends: 4288 [2020-10-28 02:52:54,197 INFO L226 Difference]: Without dead ends: 4283 [2020-10-28 02:52:54,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 02:52:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2020-10-28 02:52:55,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3887. [2020-10-28 02:52:55,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3887 states. [2020-10-28 02:52:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3887 states to 3887 states and 4930 transitions. [2020-10-28 02:52:55,704 INFO L78 Accepts]: Start accepts. Automaton has 3887 states and 4930 transitions. Word has length 64 [2020-10-28 02:52:55,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:52:55,705 INFO L481 AbstractCegarLoop]: Abstraction has 3887 states and 4930 transitions. [2020-10-28 02:52:55,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 02:52:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3887 states and 4930 transitions. [2020-10-28 02:52:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 02:52:55,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:52:55,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:52:55,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 02:52:55,709 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:52:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:52:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash -952243974, now seen corresponding path program 1 times [2020-10-28 02:52:55,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:52:55,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556586309] [2020-10-28 02:52:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:52:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:55,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:56,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:56,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1071 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 02:52:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:59,594 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 02:52:59,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:52:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:59,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:59,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 02:52:59,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:52:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:52:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:59,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:52:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:59,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:59,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:59,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:52:59,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:52:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:59,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 02:52:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:52:59,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:52:59,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:52:59,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 02:52:59,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:52:59,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 02:52:59,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:52:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:52:59,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:52:59,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 02:52:59,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:52:59,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:52:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 02:53:00,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 02:53:00,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:53:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:53:00,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 02:53:00,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 02:53:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 02:53:00,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 02:53:00,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:53:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 02:53:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 02:53:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:53:00,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:53:00,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:53:00,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:53:00,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:53:00,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:53:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:53:00,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556586309] [2020-10-28 02:53:00,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:53:00,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 02:53:00,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309566957] [2020-10-28 02:53:00,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 02:53:00,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:53:00,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 02:53:00,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 02:53:00,106 INFO L87 Difference]: Start difference. First operand 3887 states and 4930 transitions. Second operand 7 states.