java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:41:24,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:41:24,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:41:24,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:41:24,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:41:24,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:41:24,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:41:24,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:41:24,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:41:24,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:41:24,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:41:24,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:41:24,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:41:24,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:41:24,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:41:24,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:41:24,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:41:24,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:41:24,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:41:24,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:41:24,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:41:24,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:41:24,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:41:24,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:41:24,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:41:24,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:41:24,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:41:24,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:41:24,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:41:24,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:41:24,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:41:24,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:41:24,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:41:24,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:41:24,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:41:24,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:41:24,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:41:24,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:41:24,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:41:24,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:41:24,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:41:24,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:41:24,805 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:41:24,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:41:24,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:41:24,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:41:24,807 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:41:24,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:41:24,807 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:41:24,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:41:24,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:41:24,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:41:24,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:41:24,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:41:24,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:41:24,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:41:24,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:41:24,809 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:41:24,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:41:24,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:41:24,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:41:24,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:41:24,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:41:24,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:41:24,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:41:24,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:41:24,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:41:24,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:41:24,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:41:24,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:41:24,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:41:25,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:41:25,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:41:25,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:41:25,099 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:41:25,100 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:41:25,100 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-10-13 19:41:25,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7457fc1b6/8ce2346e365345f7950f8536aa3f9245/FLAG466e078af [2019-10-13 19:41:25,640 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:41:25,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-10-13 19:41:25,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7457fc1b6/8ce2346e365345f7950f8536aa3f9245/FLAG466e078af [2019-10-13 19:41:25,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7457fc1b6/8ce2346e365345f7950f8536aa3f9245 [2019-10-13 19:41:25,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:41:25,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:41:25,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:25,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:41:25,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:41:25,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:25" (1/1) ... [2019-10-13 19:41:25,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4872b234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:25, skipping insertion in model container [2019-10-13 19:41:25,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:25" (1/1) ... [2019-10-13 19:41:25,992 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:41:26,060 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:41:26,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:26,496 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:41:26,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:26,628 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:41:26,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26 WrapperNode [2019-10-13 19:41:26,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:26,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:41:26,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:41:26,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:41:26,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... [2019-10-13 19:41:26,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:41:26,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:41:26,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:41:26,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:41:26,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:41:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:41:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:41:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:41:26,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:41:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:41:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:41:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:41:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:41:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:41:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:41:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:41:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:41:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:41:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:41:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:41:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:41:27,848 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:41:27,850 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:41:27,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:27 BoogieIcfgContainer [2019-10-13 19:41:27,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:41:27,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:41:27,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:41:27,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:41:27,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:41:25" (1/3) ... [2019-10-13 19:41:27,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b043c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:27, skipping insertion in model container [2019-10-13 19:41:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:26" (2/3) ... [2019-10-13 19:41:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b043c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:27, skipping insertion in model container [2019-10-13 19:41:27,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:27" (3/3) ... [2019-10-13 19:41:27,862 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2019-10-13 19:41:27,872 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:41:27,880 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:41:27,891 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:41:27,930 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:41:27,930 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:41:27,930 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:41:27,930 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:41:27,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:41:27,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:41:27,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:41:27,931 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:41:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-10-13 19:41:27,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:41:27,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:27,963 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:27,965 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:27,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1869542645, now seen corresponding path program 1 times [2019-10-13 19:41:27,976 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:27,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871375605] [2019-10-13 19:41:27,977 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:27,977 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:27,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,642 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:28,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871375605] [2019-10-13 19:41:28,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:28,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:41:28,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025708883] [2019-10-13 19:41:28,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:41:28,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:28,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:41:28,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:41:28,791 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2019-10-13 19:41:29,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:29,891 INFO L93 Difference]: Finished difference Result 299 states and 383 transitions. [2019-10-13 19:41:29,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:41:29,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:41:29,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:29,911 INFO L225 Difference]: With dead ends: 299 [2019-10-13 19:41:29,911 INFO L226 Difference]: Without dead ends: 164 [2019-10-13 19:41:29,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:41:29,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-13 19:41:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 136. [2019-10-13 19:41:30,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-13 19:41:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-10-13 19:41:30,019 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 59 [2019-10-13 19:41:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:30,020 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-10-13 19:41:30,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:41:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-10-13 19:41:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:41:30,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:30,030 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:30,030 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:30,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:30,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1007263159, now seen corresponding path program 1 times [2019-10-13 19:41:30,031 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:30,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108661162] [2019-10-13 19:41:30,031 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:30,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:30,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,406 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:30,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108661162] [2019-10-13 19:41:30,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:30,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:41:30,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426644729] [2019-10-13 19:41:30,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:41:30,457 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:30,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:41:30,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:41:30,458 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 5 states. [2019-10-13 19:41:31,046 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:31,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:31,872 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2019-10-13 19:41:31,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:41:31,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:41:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:31,875 INFO L225 Difference]: With dead ends: 244 [2019-10-13 19:41:31,875 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 19:41:31,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:31,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 19:41:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2019-10-13 19:41:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-13 19:41:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-10-13 19:41:31,910 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 60 [2019-10-13 19:41:31,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:31,910 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-10-13 19:41:31,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:41:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-10-13 19:41:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 19:41:31,912 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:31,913 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:31,913 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:31,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:31,913 INFO L82 PathProgramCache]: Analyzing trace with hash -706056489, now seen corresponding path program 1 times [2019-10-13 19:41:31,914 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:31,914 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645823915] [2019-10-13 19:41:31,914 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:31,914 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:31,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,236 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:32,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645823915] [2019-10-13 19:41:32,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:32,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:41:32,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32548988] [2019-10-13 19:41:32,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:41:32,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:32,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:41:32,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:41:32,306 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 5 states. [2019-10-13 19:41:32,649 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:33,422 INFO L93 Difference]: Finished difference Result 253 states and 310 transitions. [2019-10-13 19:41:33,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:41:33,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-13 19:41:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:33,426 INFO L225 Difference]: With dead ends: 253 [2019-10-13 19:41:33,426 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 19:41:33,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:33,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 19:41:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2019-10-13 19:41:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-13 19:41:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2019-10-13 19:41:33,460 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 64 [2019-10-13 19:41:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:33,460 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2019-10-13 19:41:33,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:41:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2019-10-13 19:41:33,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 19:41:33,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:33,463 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:33,463 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:33,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1588822882, now seen corresponding path program 1 times [2019-10-13 19:41:33,464 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:33,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770756349] [2019-10-13 19:41:33,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:33,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:33,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,820 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:33,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770756349] [2019-10-13 19:41:33,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:33,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:33,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853855525] [2019-10-13 19:41:33,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:33,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:33,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:33,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:33,922 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 7 states. [2019-10-13 19:41:34,331 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:35,742 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:36,257 INFO L93 Difference]: Finished difference Result 352 states and 438 transitions. [2019-10-13 19:41:36,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:41:36,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-10-13 19:41:36,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:36,262 INFO L225 Difference]: With dead ends: 352 [2019-10-13 19:41:36,262 INFO L226 Difference]: Without dead ends: 253 [2019-10-13 19:41:36,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:41:36,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-10-13 19:41:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 210. [2019-10-13 19:41:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-13 19:41:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2019-10-13 19:41:36,345 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 77 [2019-10-13 19:41:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:36,347 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2019-10-13 19:41:36,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:41:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2019-10-13 19:41:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 19:41:36,349 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:36,350 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:36,350 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1801013738, now seen corresponding path program 1 times [2019-10-13 19:41:36,351 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:36,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593337350] [2019-10-13 19:41:36,351 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:36,351 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:36,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,702 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:41:36,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593337350] [2019-10-13 19:41:36,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:36,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:36,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863261169] [2019-10-13 19:41:36,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:36,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:36,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:36,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:36,821 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand 9 states. [2019-10-13 19:41:37,277 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:37,959 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:38,656 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:38,972 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:39,439 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:39,686 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:40,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:40,213 INFO L93 Difference]: Finished difference Result 434 states and 528 transitions. [2019-10-13 19:41:40,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:41:40,214 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2019-10-13 19:41:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:40,218 INFO L225 Difference]: With dead ends: 434 [2019-10-13 19:41:40,218 INFO L226 Difference]: Without dead ends: 252 [2019-10-13 19:41:40,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:41:40,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-10-13 19:41:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 209. [2019-10-13 19:41:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-10-13 19:41:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 238 transitions. [2019-10-13 19:41:40,273 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 238 transitions. Word has length 91 [2019-10-13 19:41:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:40,274 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 238 transitions. [2019-10-13 19:41:40,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 238 transitions. [2019-10-13 19:41:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:41:40,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:40,275 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:40,276 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:40,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1999801536, now seen corresponding path program 1 times [2019-10-13 19:41:40,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:40,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146811372] [2019-10-13 19:41:40,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:40,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:40,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,546 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:40,677 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146811372] [2019-10-13 19:41:40,677 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:40,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:40,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054513154] [2019-10-13 19:41:40,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:40,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:40,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:40,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:40,679 INFO L87 Difference]: Start difference. First operand 209 states and 238 transitions. Second operand 9 states. [2019-10-13 19:41:42,084 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:42,354 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:41:42,614 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:42,870 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:43,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:43,646 INFO L93 Difference]: Finished difference Result 432 states and 522 transitions. [2019-10-13 19:41:43,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:41:43,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-10-13 19:41:43,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:43,649 INFO L225 Difference]: With dead ends: 432 [2019-10-13 19:41:43,650 INFO L226 Difference]: Without dead ends: 251 [2019-10-13 19:41:43,651 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:43,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-10-13 19:41:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2019-10-13 19:41:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-10-13 19:41:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 243 transitions. [2019-10-13 19:41:43,687 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 243 transitions. Word has length 92 [2019-10-13 19:41:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:43,687 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 243 transitions. [2019-10-13 19:41:43,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 243 transitions. [2019-10-13 19:41:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:41:43,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:43,689 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:43,689 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:43,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:43,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1298201662, now seen corresponding path program 1 times [2019-10-13 19:41:43,689 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:43,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759496342] [2019-10-13 19:41:43,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,956 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:44,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759496342] [2019-10-13 19:41:44,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:44,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:41:44,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440818383] [2019-10-13 19:41:44,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:41:44,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:44,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:41:44,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:41:44,083 INFO L87 Difference]: Start difference. First operand 214 states and 243 transitions. Second operand 11 states. [2019-10-13 19:41:44,668 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:44,933 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:45,205 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:45,943 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:46,211 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:46,473 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:47,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:47,342 INFO L93 Difference]: Finished difference Result 444 states and 542 transitions. [2019-10-13 19:41:47,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:41:47,342 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2019-10-13 19:41:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:47,344 INFO L225 Difference]: With dead ends: 444 [2019-10-13 19:41:47,344 INFO L226 Difference]: Without dead ends: 258 [2019-10-13 19:41:47,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:41:47,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-10-13 19:41:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 218. [2019-10-13 19:41:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-13 19:41:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 247 transitions. [2019-10-13 19:41:47,381 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 247 transitions. Word has length 92 [2019-10-13 19:41:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:47,381 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 247 transitions. [2019-10-13 19:41:47,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:41:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 247 transitions. [2019-10-13 19:41:47,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:41:47,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:47,383 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:47,383 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:47,383 INFO L82 PathProgramCache]: Analyzing trace with hash 427279235, now seen corresponding path program 1 times [2019-10-13 19:41:47,384 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:47,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395156013] [2019-10-13 19:41:47,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:47,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:47,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,707 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:47,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395156013] [2019-10-13 19:41:47,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:47,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:47,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396501803] [2019-10-13 19:41:47,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:47,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:47,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:47,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:47,865 INFO L87 Difference]: Start difference. First operand 218 states and 247 transitions. Second operand 7 states. [2019-10-13 19:41:48,309 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:48,855 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:50,505 INFO L93 Difference]: Finished difference Result 613 states and 766 transitions. [2019-10-13 19:41:50,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:41:50,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-10-13 19:41:50,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:50,509 INFO L225 Difference]: With dead ends: 613 [2019-10-13 19:41:50,510 INFO L226 Difference]: Without dead ends: 423 [2019-10-13 19:41:50,511 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:41:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-13 19:41:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 385. [2019-10-13 19:41:50,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-10-13 19:41:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 451 transitions. [2019-10-13 19:41:50,572 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 451 transitions. Word has length 92 [2019-10-13 19:41:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:50,572 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 451 transitions. [2019-10-13 19:41:50,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:41:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 451 transitions. [2019-10-13 19:41:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-13 19:41:50,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:50,574 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:50,575 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:50,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:50,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1298280163, now seen corresponding path program 1 times [2019-10-13 19:41:50,575 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:50,575 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802138502] [2019-10-13 19:41:50,575 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:50,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:50,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,964 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:51,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802138502] [2019-10-13 19:41:51,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:51,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:41:51,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254275724] [2019-10-13 19:41:51,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:41:51,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:51,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:41:51,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:41:51,148 INFO L87 Difference]: Start difference. First operand 385 states and 451 transitions. Second operand 12 states. [2019-10-13 19:41:51,705 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:52,351 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:53,337 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:53,667 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:53,930 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:41:54,208 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:54,478 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:55,712 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:55,994 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:56,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:56,698 INFO L93 Difference]: Finished difference Result 1059 states and 1322 transitions. [2019-10-13 19:41:56,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 19:41:56,701 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-13 19:41:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:56,706 INFO L225 Difference]: With dead ends: 1059 [2019-10-13 19:41:56,706 INFO L226 Difference]: Without dead ends: 772 [2019-10-13 19:41:56,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 19:41:56,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2019-10-13 19:41:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 662. [2019-10-13 19:41:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-13 19:41:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 768 transitions. [2019-10-13 19:41:56,827 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 768 transitions. Word has length 96 [2019-10-13 19:41:56,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:56,827 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 768 transitions. [2019-10-13 19:41:56,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:41:56,828 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 768 transitions. [2019-10-13 19:41:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 19:41:56,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:56,830 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:56,831 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:56,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:56,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1033047505, now seen corresponding path program 1 times [2019-10-13 19:41:56,831 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:56,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586676996] [2019-10-13 19:41:56,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:56,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:56,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,113 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,406 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:41:57,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586676996] [2019-10-13 19:41:57,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908817757] [2019-10-13 19:41:57,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:41:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 19:41:57,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:41:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:41:57,760 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:41:57,760 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-13 19:41:57,760 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592917384] [2019-10-13 19:41:57,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 19:41:57,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:57,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 19:41:57,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:41:57,762 INFO L87 Difference]: Start difference. First operand 662 states and 768 transitions. Second operand 20 states. [2019-10-13 19:41:58,464 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:41:58,853 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-13 19:41:59,143 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:41:59,440 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:00,168 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-13 19:42:00,468 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:00,915 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-13 19:42:01,995 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:02,405 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:42:03,190 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:03,487 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 198