/usr/bin/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-fb55353 [2019-11-06 22:06:30,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:06:30,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:06:30,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:06:30,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:06:30,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:06:30,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:06:30,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:06:30,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:06:30,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:06:30,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:06:30,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:06:30,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:06:30,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:06:30,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:06:30,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:06:30,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:06:30,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:06:30,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:06:30,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:06:30,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:06:30,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:06:30,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:06:30,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:06:30,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:06:30,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:06:30,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:06:30,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:06:30,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:06:30,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:06:30,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:06:30,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:06:30,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:06:30,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:06:30,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:06:30,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:06:30,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:06:30,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:06:30,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:06:30,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:06:30,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:06:30,746 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 [2019-11-06 22:06:30,763 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:06:30,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:06:30,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:06:30,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:06:30,765 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:06:30,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:06:30,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:06:30,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:06:30,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:06:30,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:06:30,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:06:30,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:06:30,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:06:30,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:06:30,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:06:30,768 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:06:30,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:06:30,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:06:30,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:06:30,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:06:30,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:06:30,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:06:30,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:06:30,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:06:30,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:06:30,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:06:30,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:06:30,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:06:30,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:06:31,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:06:31,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:06:31,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:06:31,088 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:06:31,088 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:06:31,089 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-11-06 22:06:31,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e354ae2c/f545d60339e4477993ab9c638240fd98/FLAG8e0ec8ce4 [2019-11-06 22:06:31,736 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:06:31,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-11-06 22:06:31,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e354ae2c/f545d60339e4477993ab9c638240fd98/FLAG8e0ec8ce4 [2019-11-06 22:06:32,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e354ae2c/f545d60339e4477993ab9c638240fd98 [2019-11-06 22:06:32,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:06:32,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:06:32,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:06:32,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:06:32,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:06:32,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238a7b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32, skipping insertion in model container [2019-11-06 22:06:32,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,082 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:06:32,138 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:06:32,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:06:32,569 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:06:32,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:06:32,723 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:06:32,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32 WrapperNode [2019-11-06 22:06:32,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:06:32,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:06:32,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:06:32,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:06:32,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (1/1) ... [2019-11-06 22:06:32,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:06:32,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:06:32,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:06:32,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:06:32,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (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 [2019-11-06 22:06:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:06:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:06:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:06:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:06:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:06:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:06:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:06:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:06:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:06:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:06:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:06:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:06:32,883 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:06:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:06:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:06:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:06:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:06:32,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:06:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:06:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:06:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:06:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:06:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:06:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:06:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:06:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:06:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:06:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:06:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:06:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:06:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:06:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:06:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:06:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:06:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:06:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:06:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:06:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:06:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:06:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:06:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:06:34,091 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:06:34,091 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:06:34,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:34 BoogieIcfgContainer [2019-11-06 22:06:34,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:06:34,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:06:34,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:06:34,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:06:34,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:06:32" (1/3) ... [2019-11-06 22:06:34,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700f29d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:34, skipping insertion in model container [2019-11-06 22:06:34,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:32" (2/3) ... [2019-11-06 22:06:34,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700f29d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:34, skipping insertion in model container [2019-11-06 22:06:34,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:34" (3/3) ... [2019-11-06 22:06:34,107 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2019-11-06 22:06:34,117 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:06:34,126 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:06:34,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:06:34,173 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:06:34,173 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:06:34,173 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:06:34,173 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:06:34,174 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:06:34,174 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:06:34,174 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:06:34,174 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:06:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-11-06 22:06:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:06:34,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:34,217 INFO L410 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] [2019-11-06 22:06:34,220 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:34,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:34,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1869542645, now seen corresponding path program 1 times [2019-11-06 22:06:34,236 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:34,236 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168803272] [2019-11-06 22:06:34,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:34,931 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:35,063 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168803272] [2019-11-06 22:06:35,064 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:35,065 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:06:35,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226579988] [2019-11-06 22:06:35,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:06:35,081 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:35,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:06:35,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:06:35,095 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2019-11-06 22:06:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:36,184 INFO L93 Difference]: Finished difference Result 299 states and 383 transitions. [2019-11-06 22:06:36,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:06:36,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:06:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:36,201 INFO L225 Difference]: With dead ends: 299 [2019-11-06 22:06:36,201 INFO L226 Difference]: Without dead ends: 164 [2019-11-06 22:06:36,206 INFO L630 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 [2019-11-06 22:06:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-06 22:06:36,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 136. [2019-11-06 22:06:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-06 22:06:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-11-06 22:06:36,298 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 59 [2019-11-06 22:06:36,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:36,298 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-11-06 22:06:36,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:06:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-11-06 22:06:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:06:36,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:36,303 INFO L410 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] [2019-11-06 22:06:36,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:36,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1007263159, now seen corresponding path program 1 times [2019-11-06 22:06:36,304 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:36,304 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470398162] [2019-11-06 22:06:36,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,740 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:36,824 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470398162] [2019-11-06 22:06:36,824 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:36,824 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:06:36,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538000409] [2019-11-06 22:06:36,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:06:36,827 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:36,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:06:36,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:06:36,828 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 5 states. [2019-11-06 22:06:37,386 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:38,202 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2019-11-06 22:06:38,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:06:38,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:06:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:38,206 INFO L225 Difference]: With dead ends: 244 [2019-11-06 22:06:38,206 INFO L226 Difference]: Without dead ends: 154 [2019-11-06 22:06:38,208 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:06:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-06 22:06:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2019-11-06 22:06:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-11-06 22:06:38,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-11-06 22:06:38,245 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 60 [2019-11-06 22:06:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:38,245 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-11-06 22:06:38,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:06:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-11-06 22:06:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-06 22:06:38,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:38,248 INFO L410 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] [2019-11-06 22:06:38,249 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:38,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:38,249 INFO L82 PathProgramCache]: Analyzing trace with hash -706056489, now seen corresponding path program 1 times [2019-11-06 22:06:38,249 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:38,249 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722996619] [2019-11-06 22:06:38,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,560 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:38,652 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722996619] [2019-11-06 22:06:38,652 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:38,652 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:06:38,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799555621] [2019-11-06 22:06:38,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:06:38,653 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:38,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:06:38,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:06:38,654 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 5 states. [2019-11-06 22:06:39,005 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:39,854 INFO L93 Difference]: Finished difference Result 253 states and 310 transitions. [2019-11-06 22:06:39,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 22:06:39,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-11-06 22:06:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:39,856 INFO L225 Difference]: With dead ends: 253 [2019-11-06 22:06:39,857 INFO L226 Difference]: Without dead ends: 154 [2019-11-06 22:06:39,858 INFO L630 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 [2019-11-06 22:06:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-06 22:06:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2019-11-06 22:06:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-11-06 22:06:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2019-11-06 22:06:39,890 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 64 [2019-11-06 22:06:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:39,890 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2019-11-06 22:06:39,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:06:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2019-11-06 22:06:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-06 22:06:39,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:39,896 INFO L410 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] [2019-11-06 22:06:39,896 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1588822882, now seen corresponding path program 1 times [2019-11-06 22:06:39,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:39,897 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689510262] [2019-11-06 22:06:39,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,229 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:40,331 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689510262] [2019-11-06 22:06:40,332 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:40,332 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:06:40,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103721483] [2019-11-06 22:06:40,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:06:40,333 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:40,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:06:40,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:06:40,333 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 7 states. [2019-11-06 22:06:40,742 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:42,232 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:42,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:42,771 INFO L93 Difference]: Finished difference Result 352 states and 438 transitions. [2019-11-06 22:06:42,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:06:42,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-11-06 22:06:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:42,776 INFO L225 Difference]: With dead ends: 352 [2019-11-06 22:06:42,776 INFO L226 Difference]: Without dead ends: 253 [2019-11-06 22:06:42,778 INFO L630 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 [2019-11-06 22:06:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-06 22:06:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 210. [2019-11-06 22:06:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-11-06 22:06:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2019-11-06 22:06:42,827 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 77 [2019-11-06 22:06:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:42,828 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2019-11-06 22:06:42,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:06:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2019-11-06 22:06:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-06 22:06:42,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:42,830 INFO L410 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] [2019-11-06 22:06:42,830 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:42,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:42,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1801013738, now seen corresponding path program 1 times [2019-11-06 22:06:42,831 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:42,831 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934567275] [2019-11-06 22:06:42,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,169 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:06:43,314 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934567275] [2019-11-06 22:06:43,315 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:43,315 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:06:43,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450123911] [2019-11-06 22:06:43,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:06:43,317 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:43,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:06:43,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:06:43,318 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand 9 states. [2019-11-06 22:06:43,807 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:44,494 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:45,283 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:45,604 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:46,088 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:46,353 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:46,905 INFO L93 Difference]: Finished difference Result 434 states and 528 transitions. [2019-11-06 22:06:46,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:06:46,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2019-11-06 22:06:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:46,910 INFO L225 Difference]: With dead ends: 434 [2019-11-06 22:06:46,910 INFO L226 Difference]: Without dead ends: 252 [2019-11-06 22:06:46,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:06:46,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-06 22:06:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 209. [2019-11-06 22:06:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-11-06 22:06:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 238 transitions. [2019-11-06 22:06:46,948 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 238 transitions. Word has length 91 [2019-11-06 22:06:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:46,948 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 238 transitions. [2019-11-06 22:06:46,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:06:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 238 transitions. [2019-11-06 22:06:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:06:46,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:46,950 INFO L410 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] [2019-11-06 22:06:46,950 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:46,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1999801536, now seen corresponding path program 1 times [2019-11-06 22:06:46,951 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:46,951 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436615576] [2019-11-06 22:06:46,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,217 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:47,356 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436615576] [2019-11-06 22:06:47,357 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:47,357 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:06:47,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436404047] [2019-11-06 22:06:47,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:06:47,358 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:47,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:06:47,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:06:47,358 INFO L87 Difference]: Start difference. First operand 209 states and 238 transitions. Second operand 9 states. [2019-11-06 22:06:48,444 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:48,744 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:06:49,008 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:49,266 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:50,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:50,050 INFO L93 Difference]: Finished difference Result 432 states and 522 transitions. [2019-11-06 22:06:50,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:06:50,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-11-06 22:06:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:50,055 INFO L225 Difference]: With dead ends: 432 [2019-11-06 22:06:50,056 INFO L226 Difference]: Without dead ends: 251 [2019-11-06 22:06:50,057 INFO L630 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 [2019-11-06 22:06:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-06 22:06:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2019-11-06 22:06:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-11-06 22:06:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 243 transitions. [2019-11-06 22:06:50,112 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 243 transitions. Word has length 92 [2019-11-06 22:06:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:50,112 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 243 transitions. [2019-11-06 22:06:50,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:06:50,113 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 243 transitions. [2019-11-06 22:06:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:06:50,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:50,114 INFO L410 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] [2019-11-06 22:06:50,114 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:50,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:50,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1298201662, now seen corresponding path program 1 times [2019-11-06 22:06:50,115 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:50,115 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862628624] [2019-11-06 22:06:50,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,424 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:50,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862628624] [2019-11-06 22:06:50,543 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:50,543 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:06:50,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474990724] [2019-11-06 22:06:50,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:06:50,544 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:50,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:06:50,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:06:50,544 INFO L87 Difference]: Start difference. First operand 214 states and 243 transitions. Second operand 11 states. [2019-11-06 22:06:51,069 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:51,335 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:51,584 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:52,440 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:52,708 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:52,991 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:53,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:53,930 INFO L93 Difference]: Finished difference Result 444 states and 542 transitions. [2019-11-06 22:06:53,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:06:53,930 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2019-11-06 22:06:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:53,933 INFO L225 Difference]: With dead ends: 444 [2019-11-06 22:06:53,933 INFO L226 Difference]: Without dead ends: 258 [2019-11-06 22:06:53,937 INFO L630 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 [2019-11-06 22:06:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-11-06 22:06:53,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 218. [2019-11-06 22:06:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-06 22:06:53,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 247 transitions. [2019-11-06 22:06:53,985 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 247 transitions. Word has length 92 [2019-11-06 22:06:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:53,986 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 247 transitions. [2019-11-06 22:06:53,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:06:53,986 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 247 transitions. [2019-11-06 22:06:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:06:53,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:53,988 INFO L410 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] [2019-11-06 22:06:53,988 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:53,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:53,989 INFO L82 PathProgramCache]: Analyzing trace with hash 427279235, now seen corresponding path program 1 times [2019-11-06 22:06:53,989 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:53,989 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190255174] [2019-11-06 22:06:53,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,321 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:54,444 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190255174] [2019-11-06 22:06:54,444 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:54,445 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:06:54,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346089668] [2019-11-06 22:06:54,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:06:54,445 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:54,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:06:54,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:06:54,446 INFO L87 Difference]: Start difference. First operand 218 states and 247 transitions. Second operand 7 states. [2019-11-06 22:06:54,852 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:55,395 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:57,227 INFO L93 Difference]: Finished difference Result 613 states and 766 transitions. [2019-11-06 22:06:57,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:06:57,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-11-06 22:06:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:57,231 INFO L225 Difference]: With dead ends: 613 [2019-11-06 22:06:57,231 INFO L226 Difference]: Without dead ends: 423 [2019-11-06 22:06:57,232 INFO L630 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 [2019-11-06 22:06:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-11-06 22:06:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 385. [2019-11-06 22:06:57,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-11-06 22:06:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 451 transitions. [2019-11-06 22:06:57,298 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 451 transitions. Word has length 92 [2019-11-06 22:06:57,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:57,299 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 451 transitions. [2019-11-06 22:06:57,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:06:57,299 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 451 transitions. [2019-11-06 22:06:57,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-11-06 22:06:57,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:57,301 INFO L410 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] [2019-11-06 22:06:57,301 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:57,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:57,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1298280163, now seen corresponding path program 1 times [2019-11-06 22:06:57,302 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:57,302 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125108350] [2019-11-06 22:06:57,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,718 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:57,889 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125108350] [2019-11-06 22:06:57,889 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:57,889 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:06:57,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429521604] [2019-11-06 22:06:57,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:06:57,890 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:57,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:06:57,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:06:57,893 INFO L87 Difference]: Start difference. First operand 385 states and 451 transitions. Second operand 12 states. [2019-11-06 22:06:58,390 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:59,138 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:00,181 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:00,496 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:00,759 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:07:01,065 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:01,351 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:02,664 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:02,982 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:03,707 INFO L93 Difference]: Finished difference Result 1059 states and 1322 transitions. [2019-11-06 22:07:03,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:07:03,709 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-11-06 22:07:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:03,716 INFO L225 Difference]: With dead ends: 1059 [2019-11-06 22:07:03,716 INFO L226 Difference]: Without dead ends: 772 [2019-11-06 22:07:03,719 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:07:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2019-11-06 22:07:03,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 662. [2019-11-06 22:07:03,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-11-06 22:07:03,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 768 transitions. [2019-11-06 22:07:03,912 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 768 transitions. Word has length 96 [2019-11-06 22:07:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:03,914 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 768 transitions. [2019-11-06 22:07:03,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:07:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 768 transitions. [2019-11-06 22:07:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-06 22:07:03,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:03,920 INFO L410 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] [2019-11-06 22:07:03,921 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:03,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1033047505, now seen corresponding path program 1 times [2019-11-06 22:07:03,921 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:03,922 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890079113] [2019-11-06 22:07:03,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,334 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-06 22:07:04,624 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890079113] [2019-11-06 22:07:04,625 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210210449] [2019-11-06 22:07:04,625 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 [2019-11-06 22:07:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:07:04,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:07:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:07:05,085 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:07:05,085 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:07:05,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058717284] [2019-11-06 22:07:05,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:07:05,087 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:05,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:07:05,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:07:05,088 INFO L87 Difference]: Start difference. First operand 662 states and 768 transitions. Second operand 20 states. [2019-11-06 22:07:05,729 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:07:06,118 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-06 22:07:06,417 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:07:06,725 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:07:07,521 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-06 22:07:07,815 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:07:08,263 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-11-06 22:07:09,206 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:09,632 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202