/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 21:34:44,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 21:34:44,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 21:34:44,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 21:34:44,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 21:34:44,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 21:34:44,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 21:34:44,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 21:34:44,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 21:34:44,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 21:34:44,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 21:34:44,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 21:34:44,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 21:34:44,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 21:34:44,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 21:34:44,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 21:34:44,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 21:34:44,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 21:34:44,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 21:34:44,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 21:34:44,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 21:34:44,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 21:34:44,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 21:34:44,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 21:34:44,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 21:34:44,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 21:34:44,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 21:34:44,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 21:34:44,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 21:34:44,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 21:34:44,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 21:34:44,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 21:34:44,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 21:34:44,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 21:34:44,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 21:34:44,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 21:34:44,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 21:34:44,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 21:34:44,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 21:34:44,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 21:34:44,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 21:34:44,593 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 21:34:44,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 21:34:44,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 21:34:44,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 21:34:44,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 21:34:44,624 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 21:34:44,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 21:34:44,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 21:34:44,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 21:34:44,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 21:34:44,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 21:34:44,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 21:34:44,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 21:34:44,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 21:34:44,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 21:34:44,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 21:34:44,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 21:34:44,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 21:34:44,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 21:34:44,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:34:44,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 21:34:44,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 21:34:44,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 21:34:44,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 21:34:44,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 21:34:44,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 21:34:44,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 21:34:44,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 21:34:44,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 21:34:45,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 21:34:45,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 21:34:45,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 21:34:45,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 21:34:45,045 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 21:34:45,046 INFO L432 ainManager$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 21:34:45,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc85d2fc8/80530baeb7254aa99eeb2a3359c54d96/FLAGf9edd9f9e [2020-10-28 21:34:46,127 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 21:34:46,128 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 21:34:46,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc85d2fc8/80530baeb7254aa99eeb2a3359c54d96/FLAGf9edd9f9e [2020-10-28 21:34:46,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc85d2fc8/80530baeb7254aa99eeb2a3359c54d96 [2020-10-28 21:34:46,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 21:34:46,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 21:34:46,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 21:34:46,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 21:34:46,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 21:34:46,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:46" (1/1) ... [2020-10-28 21:34:46,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0abc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:46, skipping insertion in model container [2020-10-28 21:34:46,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:46" (1/1) ... [2020-10-28 21:34:46,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 21:34:46,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 21:34:47,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:34:47,632 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 21:34:48,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:34:48,316 INFO L208 MainTranslator]: Completed translation [2020-10-28 21:34:48,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48 WrapperNode [2020-10-28 21:34:48,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 21:34:48,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 21:34:48,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 21:34:48,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 21:34:48,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (1/1) ... [2020-10-28 21:34:48,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 21:34:48,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 21:34:48,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 21:34:48,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 21:34:48,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (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 21:34:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 21:34:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 21:34:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 21:34:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 21:34:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 21:34:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 21:34:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 21:34:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 21:34:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 21:34:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 21:34:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 21:34:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 21:34:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 21:34:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2020-10-28 21:34:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 21:34:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 21:34:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 21:34:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 21:34:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 21:34:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2020-10-28 21:34:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2020-10-28 21:34:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-28 21:34:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-28 21:34:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2020-10-28 21:34:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-28 21:34:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-28 21:34:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2020-10-28 21:34:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2020-10-28 21:34:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 21:34:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 21:34:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:34:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:34:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-28 21:34:48,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-28 21:34:48,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:34:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-28 21:34:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-28 21:34:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:34:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:34:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:34:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:34:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:34:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:34:48,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2020-10-28 21:34:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2020-10-28 21:34:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-28 21:34:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2020-10-28 21:34:48,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 21:34:48,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 21:34:48,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2020-10-28 21:34:48,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 21:34:48,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-28 21:34:48,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 21:34:48,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 21:34:48,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 21:34:48,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 21:34:48,813 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 21:34:48,814 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:34:48,815 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-28 21:34:48,815 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-28 21:34:48,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 21:34:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 21:34:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-28 21:34:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-28 21:34:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-28 21:34:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2020-10-28 21:34:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2020-10-28 21:34:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 21:34:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-28 21:34:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2020-10-28 21:34:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-28 21:34:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 21:34:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2020-10-28 21:34:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2020-10-28 21:34:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2020-10-28 21:34:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2020-10-28 21:34:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2020-10-28 21:34:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2020-10-28 21:34:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2020-10-28 21:34:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2020-10-28 21:34:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2020-10-28 21:34:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 21:34:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-28 21:34:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2020-10-28 21:34:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2020-10-28 21:34:48,834 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-28 21:34:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 21:34:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 21:34:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 21:34:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 21:34:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 21:34:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 21:34:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2020-10-28 21:34:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 21:34:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-28 21:34:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-28 21:34:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2020-10-28 21:34:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-28 21:34:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2020-10-28 21:34:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2020-10-28 21:34:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-28 21:34:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2020-10-28 21:34:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 21:34:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 21:34:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 21:34:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 21:34:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:34:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 21:34:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2020-10-28 21:34:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2020-10-28 21:34:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 21:34:48,848 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2020-10-28 21:34:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 21:34:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2020-10-28 21:34:48,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 21:34:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 21:34:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2020-10-28 21:34:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-28 21:34:48,858 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-28 21:34:48,858 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-28 21:34:48,858 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 21:34:48,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 21:34:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2020-10-28 21:34:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 21:34:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2020-10-28 21:34:48,862 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2020-10-28 21:34:48,863 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 21:34:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:34:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2020-10-28 21:34:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2020-10-28 21:34:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 21:34:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 21:34:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 21:34:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 21:34:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 21:34:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 21:34:54,684 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 21:34:54,685 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 21:34:54,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:54 BoogieIcfgContainer [2020-10-28 21:34:54,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 21:34:54,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 21:34:54,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 21:34:54,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 21:34:54,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:34:46" (1/3) ... [2020-10-28 21:34:54,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5e167a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:54, skipping insertion in model container [2020-10-28 21:34:54,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:48" (2/3) ... [2020-10-28 21:34:54,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5e167a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:34:54, skipping insertion in model container [2020-10-28 21:34:54,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:54" (3/3) ... [2020-10-28 21:34:54,699 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2020-10-28 21:34:54,712 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 21:34:54,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 21:34:54,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 21:34:54,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 21:34:54,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 21:34:54,803 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 21:34:54,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 21:34:54,803 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 21:34:54,803 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 21:34:54,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 21:34:54,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 21:34:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states. [2020-10-28 21:34:54,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 21:34:54,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:34:54,855 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 21:34:54,856 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:34:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:34:54,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1056371397, now seen corresponding path program 1 times [2020-10-28 21:34:54,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:34:54,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597036013] [2020-10-28 21:34:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:34:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:34:55,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:34:55,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:34:55,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:00,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:00,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 21:35:00,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:35:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-28 21:35:00,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:00,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:35:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 21:35:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 21:35:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 21:35:03,497 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:35:03,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:35:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:03,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:03,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:03,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 21:35:03,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:03,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:03,969 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-10-28 21:35:03,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:35:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:03,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:03,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:03,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:03,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:35:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:03,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:35:04,013 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 21:35:04,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597036013] [2020-10-28 21:35:04,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:35:04,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:35:04,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334372884] [2020-10-28 21:35:04,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:35:04,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:35:04,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:35:04,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:35:04,042 INFO L87 Difference]: Start difference. First operand 966 states. Second operand 5 states. [2020-10-28 21:35:08,107 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 21:35:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:35:29,334 INFO L93 Difference]: Finished difference Result 2015 states and 2655 transitions. [2020-10-28 21:35:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 21:35:29,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-28 21:35:29,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:35:29,366 INFO L225 Difference]: With dead ends: 2015 [2020-10-28 21:35:29,367 INFO L226 Difference]: Without dead ends: 1208 [2020-10-28 21:35:29,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:35:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-28 21:35:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1079. [2020-10-28 21:35:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-10-28 21:35:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1364 transitions. [2020-10-28 21:35:29,941 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1364 transitions. Word has length 29 [2020-10-28 21:35:29,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:35:29,941 INFO L481 AbstractCegarLoop]: Abstraction has 1079 states and 1364 transitions. [2020-10-28 21:35:29,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 21:35:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1364 transitions. [2020-10-28 21:35:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 21:35:29,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:35:29,953 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 21:35:29,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 21:35:29,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:35:29,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:35:29,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1854798328, now seen corresponding path program 1 times [2020-10-28 21:35:29,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:35:29,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842877614] [2020-10-28 21:35:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:35:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:30,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:32,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:32,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 21:35:32,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:35:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2858 [2020-10-28 21:35:32,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:32,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:35:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:35:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 21:35:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,390 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:35:35,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:35:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-28 21:35:35,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:35:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:35:35,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:35:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:35:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:35:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 21:35:35,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 21:35:35,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:35:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 21:35:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:35:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:35:35,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 21:35:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 21:35:35,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:35:35,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 21:35:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 21:35:35,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:35:35,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 21:35:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:35:35,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:35:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:35:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:35:35,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:35:35,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:35:35,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:35:35,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:35:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 21:35:35,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:35:35,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:35:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:35:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:35:35,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:35:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:35:35,907 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 21:35:35,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842877614] [2020-10-28 21:35:35,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:35:35,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:35:35,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451077456] [2020-10-28 21:35:35,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:35:35,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:35:35,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:35:35,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:35:35,913 INFO L87 Difference]: Start difference. First operand 1079 states and 1364 transitions. Second operand 6 states. [2020-10-28 21:35:38,363 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 21:35:45,400 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 21:35:55,186 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 21:36:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:36:03,715 INFO L93 Difference]: Finished difference Result 1243 states and 1608 transitions. [2020-10-28 21:36:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 21:36:03,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-28 21:36:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:36:03,731 INFO L225 Difference]: With dead ends: 1243 [2020-10-28 21:36:03,731 INFO L226 Difference]: Without dead ends: 1238 [2020-10-28 21:36:03,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-28 21:36:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-10-28 21:36:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1078. [2020-10-28 21:36:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2020-10-28 21:36:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1362 transitions. [2020-10-28 21:36:04,163 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1362 transitions. Word has length 52 [2020-10-28 21:36:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:36:04,164 INFO L481 AbstractCegarLoop]: Abstraction has 1078 states and 1362 transitions. [2020-10-28 21:36:04,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:36:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1362 transitions. [2020-10-28 21:36:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 21:36:04,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:36:04,169 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] [2020-10-28 21:36:04,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 21:36:04,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:36:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:36:04,170 INFO L82 PathProgramCache]: Analyzing trace with hash 904506638, now seen corresponding path program 1 times [2020-10-28 21:36:04,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:36:04,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783170892] [2020-10-28 21:36:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:36:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:04,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:07,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:07,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2749 [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:07,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:36:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 21:36:07,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:09,516 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:36:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:36:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:09,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-28 21:36:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:09,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:09,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:36:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:09,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 21:36:09,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:09,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:36:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:36:09,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:36:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:09,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:09,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:09,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 21:36:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 21:36:09,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:09,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 21:36:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:09,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:36:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:09,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:09,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:09,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:09,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:36:09,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:09,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:36:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 21:36:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:09,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:09,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:09,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:09,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:09,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:09,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:09,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:09,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 21:36:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:10,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:10,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:10,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:10,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:10,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:10,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 21:36:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:10,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:36:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:10,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:10,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:10,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:10,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:10,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:10,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:10,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:10,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:36:10,048 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 21:36:10,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783170892] [2020-10-28 21:36:10,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:36:10,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:36:10,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829715219] [2020-10-28 21:36:10,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:36:10,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:36:10,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:36:10,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:36:10,052 INFO L87 Difference]: Start difference. First operand 1078 states and 1362 transitions. Second operand 6 states. [2020-10-28 21:36:12,534 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 21:36:20,417 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 21:36:30,260 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 21:36:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:36:38,802 INFO L93 Difference]: Finished difference Result 1242 states and 1606 transitions. [2020-10-28 21:36:38,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 21:36:38,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-10-28 21:36:38,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:36:38,812 INFO L225 Difference]: With dead ends: 1242 [2020-10-28 21:36:38,812 INFO L226 Difference]: Without dead ends: 1237 [2020-10-28 21:36:38,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-28 21:36:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2020-10-28 21:36:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1077. [2020-10-28 21:36:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-10-28 21:36:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1360 transitions. [2020-10-28 21:36:39,159 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1360 transitions. Word has length 53 [2020-10-28 21:36:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:36:39,159 INFO L481 AbstractCegarLoop]: Abstraction has 1077 states and 1360 transitions. [2020-10-28 21:36:39,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:36:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1360 transitions. [2020-10-28 21:36:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 21:36:39,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:36:39,161 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] [2020-10-28 21:36:39,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 21:36:39,162 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:36:39,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:36:39,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1514912507, now seen corresponding path program 1 times [2020-10-28 21:36:39,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:36:39,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635675621] [2020-10-28 21:36:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:36:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 21:36:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:36:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2360 [2020-10-28 21:36:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:41,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:36:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 21:36:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,058 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:36:44,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:36:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-28 21:36:44,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:36:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:36:44,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:36:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:36:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 21:36:44,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 21:36:44,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:36:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 21:36:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:36:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:44,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:36:44,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 21:36:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 21:36:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:44,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 21:36:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:44,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:36:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:36:44,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:36:44,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:36:44,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:36:44,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:36:44,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:36:44,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:36:44,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:36:44,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:36:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:36:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:36:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:36:44,509 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 21:36:44,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635675621] [2020-10-28 21:36:44,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:36:44,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:36:44,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581116122] [2020-10-28 21:36:44,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:36:44,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:36:44,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:36:44,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:36:44,512 INFO L87 Difference]: Start difference. First operand 1077 states and 1360 transitions. Second operand 6 states. [2020-10-28 21:36:46,993 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 21:36:53,842 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 21:37:03,651 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 21:37:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:37:12,341 INFO L93 Difference]: Finished difference Result 1241 states and 1604 transitions. [2020-10-28 21:37:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 21:37:12,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-10-28 21:37:12,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:37:12,351 INFO L225 Difference]: With dead ends: 1241 [2020-10-28 21:37:12,351 INFO L226 Difference]: Without dead ends: 1236 [2020-10-28 21:37:12,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-28 21:37:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2020-10-28 21:37:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1076. [2020-10-28 21:37:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-10-28 21:37:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1358 transitions. [2020-10-28 21:37:12,623 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1358 transitions. Word has length 54 [2020-10-28 21:37:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:37:12,624 INFO L481 AbstractCegarLoop]: Abstraction has 1076 states and 1358 transitions. [2020-10-28 21:37:12,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:37:12,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1358 transitions. [2020-10-28 21:37:12,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-28 21:37:12,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:37:12,626 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] [2020-10-28 21:37:12,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 21:37:12,626 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:37:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:37:12,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1032664847, now seen corresponding path program 1 times [2020-10-28 21:37:12,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:37:12,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928108961] [2020-10-28 21:37:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:37:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:12,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:14,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 21:37:14,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:37:14,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2293 [2020-10-28 21:37:14,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:14,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:37:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:37:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-28 21:37:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,574 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:37:17,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:37:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 21:37:17,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:37:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:37:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:37:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 21:37:17,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 21:37:17,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:37:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 21:37:17,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:37:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:37:17,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 21:37:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:37:17,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 21:37:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 21:37:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:37:17,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:37:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:37:17,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:37:17,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:37:17,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:37:17,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:37:17,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:37:17,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:37:17,981 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 21:37:17,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928108961] [2020-10-28 21:37:17,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:37:17,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:37:17,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537679961] [2020-10-28 21:37:17,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:37:17,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:37:17,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:37:17,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:37:17,984 INFO L87 Difference]: Start difference. First operand 1076 states and 1358 transitions. Second operand 6 states. [2020-10-28 21:37:20,542 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 21:37:28,495 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 21:37:38,441 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 624 [2020-10-28 21:38:01,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:38:01,842 INFO L93 Difference]: Finished difference Result 3407 states and 4371 transitions. [2020-10-28 21:38:01,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 21:38:01,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-28 21:38:01,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:38:01,858 INFO L225 Difference]: With dead ends: 3407 [2020-10-28 21:38:01,858 INFO L226 Difference]: Without dead ends: 2342 [2020-10-28 21:38:01,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 21:38:01,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2020-10-28 21:38:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2085. [2020-10-28 21:38:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-10-28 21:38:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2643 transitions. [2020-10-28 21:38:02,695 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2643 transitions. Word has length 55 [2020-10-28 21:38:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:38:02,695 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 2643 transitions. [2020-10-28 21:38:02,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:38:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2643 transitions. [2020-10-28 21:38:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-28 21:38:02,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:38:02,697 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] [2020-10-28 21:38:02,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 21:38:02,698 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:38:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:38:02,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1601492990, now seen corresponding path program 1 times [2020-10-28 21:38:02,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:38:02,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577590790] [2020-10-28 21:38:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:38:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:02,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:04,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1987 [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:04,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:38:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:38:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 21:38:04,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,471 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 622 [2020-10-28 21:38:07,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:38:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 21:38:07,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 37 [2020-10-28 21:38:07,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:38:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:38:07,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:38:07,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:38:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:38:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 21:38:07,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:38:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 21:38:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:38:07,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 21:38:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 21:38:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:38:07,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:38:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:38:07,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:38:07,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:38:07,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:38:07,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:38:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:38:07,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:38:07,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:38:07,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:38:07,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:38:07,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:38:07,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:38:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:38:07,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577590790] [2020-10-28 21:38:07,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:38:07,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:38:07,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869177249] [2020-10-28 21:38:07,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:38:07,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:38:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:38:07,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:38:07,938 INFO L87 Difference]: Start difference. First operand 2085 states and 2643 transitions. Second operand 6 states. [2020-10-28 21:38:10,535 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-28 21:38:18,113 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-28 21:38:28,111 WARN L193 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 624