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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:40:29,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:40:29,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:40:29,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:40:29,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:40:29,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:40:29,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:40:29,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:40:29,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:40:29,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:40:29,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:40:29,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:40:29,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:40:29,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:40:29,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:40:29,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:40:29,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:40:29,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:40:29,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:40:29,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:40:29,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:40:29,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:40:29,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:40:29,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:40:29,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:40:29,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:40:29,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:40:29,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:40:29,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:40:29,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:40:29,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:40:29,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:40:29,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:40:29,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:40:29,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:40:29,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:40:29,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:40:29,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:40:29,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:40:29,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:40:29,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:40:29,772 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 [2019-10-14 23:40:29,792 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:40:29,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:40:29,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:40:29,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:40:29,795 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:40:29,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:40:29,795 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:40:29,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:40:29,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:40:29,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:40:29,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:40:29,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:40:29,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:40:29,797 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:40:29,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:40:29,798 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:40:29,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:40:29,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:40:29,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:40:29,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:40:29,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:40:29,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:40:29,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:40:29,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:40:29,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:40:29,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:40:29,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:40:29,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:40:29,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:40:30,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:40:30,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:40:30,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:40:30,085 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:40:30,085 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:40:30,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2019-10-14 23:40:30,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21493eb4e/6da48adfdd0f4fdfb5bf41dedf738f24/FLAG50902adf4 [2019-10-14 23:40:30,674 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:40:30,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2019-10-14 23:40:30,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21493eb4e/6da48adfdd0f4fdfb5bf41dedf738f24/FLAG50902adf4 [2019-10-14 23:40:31,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21493eb4e/6da48adfdd0f4fdfb5bf41dedf738f24 [2019-10-14 23:40:31,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:40:31,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:40:31,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:31,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:40:31,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:40:31,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31, skipping insertion in model container [2019-10-14 23:40:31,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,029 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:40:31,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:40:31,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:31,539 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:40:31,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:31,663 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:40:31,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31 WrapperNode [2019-10-14 23:40:31,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:31,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:40:31,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:40:31,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:40:31,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (1/1) ... [2019-10-14 23:40:31,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:40:31,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:40:31,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:40:31,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:40:31,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (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 [2019-10-14 23:40:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:40:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:40:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:40:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:40:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:40:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:40:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:40:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:40:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:40:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:40:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:40:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:40:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:40:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:40:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:40:31,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:40:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:40:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:40:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:40:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:40:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:40:31,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:40:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:40:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:40:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:40:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:40:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:40:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:40:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:40:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:40:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:40:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:40:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:40:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:40:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:40:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:40:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:40:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:40:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:40:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:40:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:40:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:40:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:40:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:40:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:40:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:40:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:40:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:40:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:40:31,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:40:31,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:40:31,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:40:31,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:40:31,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:40:33,055 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:40:33,055 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:40:33,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:33 BoogieIcfgContainer [2019-10-14 23:40:33,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:40:33,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:40:33,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:40:33,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:40:33,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:40:31" (1/3) ... [2019-10-14 23:40:33,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac7a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:33, skipping insertion in model container [2019-10-14 23:40:33,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:31" (2/3) ... [2019-10-14 23:40:33,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac7a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:33, skipping insertion in model container [2019-10-14 23:40:33,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:33" (3/3) ... [2019-10-14 23:40:33,068 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2019-10-14 23:40:33,079 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:40:33,090 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:40:33,102 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:40:33,141 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:40:33,142 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:40:33,142 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:40:33,142 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:40:33,142 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:40:33,142 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:40:33,143 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:40:33,143 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:40:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-10-14 23:40:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:40:33,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:33,184 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] [2019-10-14 23:40:33,186 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:33,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:33,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1231866733, now seen corresponding path program 1 times [2019-10-14 23:40:33,202 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:33,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109471465] [2019-10-14 23:40:33,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:33,203 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:33,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:33,930 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:34,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109471465] [2019-10-14 23:40:34,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:34,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:40:34,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9542586] [2019-10-14 23:40:34,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:40:34,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:34,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:40:34,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:34,061 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 4 states. [2019-10-14 23:40:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:35,240 INFO L93 Difference]: Finished difference Result 324 states and 416 transitions. [2019-10-14 23:40:35,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:40:35,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:40:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:35,258 INFO L225 Difference]: With dead ends: 324 [2019-10-14 23:40:35,258 INFO L226 Difference]: Without dead ends: 179 [2019-10-14 23:40:35,268 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 [2019-10-14 23:40:35,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-14 23:40:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 146. [2019-10-14 23:40:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-14 23:40:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2019-10-14 23:40:35,393 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 59 [2019-10-14 23:40:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:35,394 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2019-10-14 23:40:35,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:40:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2019-10-14 23:40:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:40:35,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:35,406 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] [2019-10-14 23:40:35,406 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash 735941424, now seen corresponding path program 1 times [2019-10-14 23:40:35,408 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:35,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063536943] [2019-10-14 23:40:35,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:35,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:35,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,847 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:35,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063536943] [2019-10-14 23:40:35,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:35,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:40:35,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848869067] [2019-10-14 23:40:35,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:40:35,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:35,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:40:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:40:35,917 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand 5 states. [2019-10-14 23:40:36,394 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:37,328 INFO L93 Difference]: Finished difference Result 259 states and 316 transitions. [2019-10-14 23:40:37,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:40:37,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:40:37,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:37,334 INFO L225 Difference]: With dead ends: 259 [2019-10-14 23:40:37,334 INFO L226 Difference]: Without dead ends: 169 [2019-10-14 23:40:37,336 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 [2019-10-14 23:40:37,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-10-14 23:40:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 137. [2019-10-14 23:40:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-14 23:40:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-10-14 23:40:37,374 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 60 [2019-10-14 23:40:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:37,374 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-10-14 23:40:37,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:40:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-10-14 23:40:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:40:37,376 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:37,376 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] [2019-10-14 23:40:37,377 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:37,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1019781836, now seen corresponding path program 1 times [2019-10-14 23:40:37,377 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:37,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230047034] [2019-10-14 23:40:37,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:37,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:37,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,794 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:37,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230047034] [2019-10-14 23:40:37,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:37,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:37,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676989570] [2019-10-14 23:40:37,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:37,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:37,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:37,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:37,983 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 9 states. [2019-10-14 23:40:38,410 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:38,793 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:40:39,069 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:39,335 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:40,364 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:42,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:42,360 INFO L93 Difference]: Finished difference Result 460 states and 568 transitions. [2019-10-14 23:40:42,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:40:42,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-14 23:40:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:42,365 INFO L225 Difference]: With dead ends: 460 [2019-10-14 23:40:42,365 INFO L226 Difference]: Without dead ends: 351 [2019-10-14 23:40:42,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:40:42,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2019-10-14 23:40:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 290. [2019-10-14 23:40:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-14 23:40:42,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2019-10-14 23:40:42,468 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 65 [2019-10-14 23:40:42,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:42,468 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2019-10-14 23:40:42,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2019-10-14 23:40:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:40:42,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:42,470 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] [2019-10-14 23:40:42,470 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1071873071, now seen corresponding path program 1 times [2019-10-14 23:40:42,471 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:42,471 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244334129] [2019-10-14 23:40:42,471 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:42,472 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:42,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,847 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:40:42,940 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244334129] [2019-10-14 23:40:42,940 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:42,940 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:42,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479455087] [2019-10-14 23:40:42,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:42,941 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:42,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:42,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:42,942 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 9 states. [2019-10-14 23:40:43,424 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:44,191 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:45,141 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:45,503 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:45,801 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:46,109 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:46,967 INFO L93 Difference]: Finished difference Result 747 states and 974 transitions. [2019-10-14 23:40:46,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:40:46,968 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-14 23:40:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:46,972 INFO L225 Difference]: With dead ends: 747 [2019-10-14 23:40:46,973 INFO L226 Difference]: Without dead ends: 485 [2019-10-14 23:40:46,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:40:46,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-14 23:40:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 417. [2019-10-14 23:40:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-14 23:40:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 501 transitions. [2019-10-14 23:40:47,067 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 501 transitions. Word has length 70 [2019-10-14 23:40:47,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:47,068 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 501 transitions. [2019-10-14 23:40:47,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 501 transitions. [2019-10-14 23:40:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:40:47,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:47,071 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] [2019-10-14 23:40:47,071 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:47,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash -573764694, now seen corresponding path program 1 times [2019-10-14 23:40:47,072 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:47,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603463203] [2019-10-14 23:40:47,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,402 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:47,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603463203] [2019-10-14 23:40:47,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:47,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:47,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505053898] [2019-10-14 23:40:47,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:47,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:47,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:47,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:47,599 INFO L87 Difference]: Start difference. First operand 417 states and 501 transitions. Second operand 9 states. [2019-10-14 23:40:48,114 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:49,389 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:49,699 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:40:49,997 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:50,296 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:51,674 INFO L93 Difference]: Finished difference Result 1260 states and 1685 transitions. [2019-10-14 23:40:51,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:40:51,676 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-10-14 23:40:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:51,683 INFO L225 Difference]: With dead ends: 1260 [2019-10-14 23:40:51,683 INFO L226 Difference]: Without dead ends: 871 [2019-10-14 23:40:51,686 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2019-10-14 23:40:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 743. [2019-10-14 23:40:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2019-10-14 23:40:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 897 transitions. [2019-10-14 23:40:51,854 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 897 transitions. Word has length 93 [2019-10-14 23:40:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:51,855 INFO L462 AbstractCegarLoop]: Abstraction has 743 states and 897 transitions. [2019-10-14 23:40:51,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:51,856 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 897 transitions. [2019-10-14 23:40:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:40:51,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:51,865 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] [2019-10-14 23:40:51,865 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:51,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:51,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1995721705, now seen corresponding path program 1 times [2019-10-14 23:40:51,868 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:51,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747955165] [2019-10-14 23:40:51,868 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,868 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:51,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,188 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:52,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747955165] [2019-10-14 23:40:52,320 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:52,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:52,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101386356] [2019-10-14 23:40:52,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:52,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:52,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:52,323 INFO L87 Difference]: Start difference. First operand 743 states and 897 transitions. Second operand 9 states. [2019-10-14 23:40:53,739 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,021 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:40:54,329 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,606 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:55,516 INFO L93 Difference]: Finished difference Result 1585 states and 2019 transitions. [2019-10-14 23:40:55,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:40:55,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-10-14 23:40:55,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:55,523 INFO L225 Difference]: With dead ends: 1585 [2019-10-14 23:40:55,524 INFO L226 Difference]: Without dead ends: 870 [2019-10-14 23:40:55,526 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 [2019-10-14 23:40:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-14 23:40:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 763. [2019-10-14 23:40:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 763 states. [2019-10-14 23:40:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 917 transitions. [2019-10-14 23:40:55,719 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 917 transitions. Word has length 93 [2019-10-14 23:40:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:55,721 INFO L462 AbstractCegarLoop]: Abstraction has 763 states and 917 transitions. [2019-10-14 23:40:55,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 917 transitions. [2019-10-14 23:40:55,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:40:55,726 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:55,726 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] [2019-10-14 23:40:55,727 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:55,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1597645717, now seen corresponding path program 1 times [2019-10-14 23:40:55,727 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:55,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111635258] [2019-10-14 23:40:55,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,052 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:56,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111635258] [2019-10-14 23:40:56,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:56,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:40:56,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851452610] [2019-10-14 23:40:56,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:40:56,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:56,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:40:56,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:40:56,201 INFO L87 Difference]: Start difference. First operand 763 states and 917 transitions. Second operand 11 states. [2019-10-14 23:40:56,945 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:57,197 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:57,457 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,360 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,675 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,970 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:59,899 INFO L93 Difference]: Finished difference Result 1442 states and 1826 transitions. [2019-10-14 23:40:59,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:40:59,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2019-10-14 23:40:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:59,905 INFO L225 Difference]: With dead ends: 1442 [2019-10-14 23:40:59,905 INFO L226 Difference]: Without dead ends: 707 [2019-10-14 23:40:59,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-14 23:41:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 630. [2019-10-14 23:41:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-10-14 23:41:00,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 739 transitions. [2019-10-14 23:41:00,016 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 739 transitions. Word has length 93 [2019-10-14 23:41:00,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:00,017 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 739 transitions. [2019-10-14 23:41:00,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:41:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 739 transitions. [2019-10-14 23:41:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:00,019 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:00,020 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, 1] [2019-10-14 23:41:00,021 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1394866514, now seen corresponding path program 1 times [2019-10-14 23:41:00,022 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:00,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215338434] [2019-10-14 23:41:00,031 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:00,031 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:00,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,393 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:00,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215338434] [2019-10-14 23:41:00,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:00,557 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:41:00,558 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463650578] [2019-10-14 23:41:00,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:41:00,559 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:00,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:41:00,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:41:00,560 INFO L87 Difference]: Start difference. First operand 630 states and 739 transitions. Second operand 12 states. [2019-10-14 23:41:01,082 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:01,826 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:02,663 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:03,065 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:03,352 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:03,673 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:04,009 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:06,088 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:06,445 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:06,964 INFO L93 Difference]: Finished difference Result 1853 states and 2361 transitions. [2019-10-14 23:41:06,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-14 23:41:06,965 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:41:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:06,978 INFO L225 Difference]: With dead ends: 1853 [2019-10-14 23:41:06,978 INFO L226 Difference]: Without dead ends: 1437 [2019-10-14 23:41:06,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-14 23:41:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2019-10-14 23:41:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1299. [2019-10-14 23:41:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2019-10-14 23:41:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1525 transitions. [2019-10-14 23:41:07,310 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1525 transitions. Word has length 97 [2019-10-14 23:41:07,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:07,313 INFO L462 AbstractCegarLoop]: Abstraction has 1299 states and 1525 transitions. [2019-10-14 23:41:07,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:41:07,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1525 transitions. [2019-10-14 23:41:07,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-14 23:41:07,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:07,318 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, 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] [2019-10-14 23:41:07,318 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:07,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:07,319 INFO L82 PathProgramCache]: Analyzing trace with hash 773750625, now seen corresponding path program 1 times [2019-10-14 23:41:07,319 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:07,319 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751754589] [2019-10-14 23:41:07,319 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:07,320 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:07,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,696 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,945 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-14 23:41:07,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751754589] [2019-10-14 23:41:07,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730093496] [2019-10-14 23:41:07,946 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 [2019-10-14 23:41:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:08,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:41:08,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:41:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:41:08,370 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:41:08,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:41:08,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969240314] [2019-10-14 23:41:08,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:41:08,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:08,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:41:08,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:41:08,373 INFO L87 Difference]: Start difference. First operand 1299 states and 1525 transitions. Second operand 20 states.