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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:19,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:19,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:19,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:19,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:19,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:19,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:19,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:19,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:19,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:19,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:19,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:19,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:19,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:19,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:19,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:19,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:19,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:19,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:19,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:19,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:19,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:19,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:19,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:19,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:19,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:19,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:19,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:19,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:19,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:19,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:19,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:19,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:19,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:19,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:19,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:19,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:19,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:19,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:19,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:19,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:19,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:59:19,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:19,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:19,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:19,921 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:19,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:19,922 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:19,922 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:19,922 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:19,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:19,923 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:19,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:19,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:19,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:19,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:19,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:19,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:19,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:19,925 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:19,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:19,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:19,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:19,926 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:19,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:19,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:19,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:19,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:19,927 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:19,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:19,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:19,927 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:19,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:19,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:19,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:19,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:19,982 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:19,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-10-03 02:59:20,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54c2c511/3b6a0379aa44420e8599dcbc14f21c0e/FLAGee1a28cc9 [2019-10-03 02:59:20,664 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:20,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-10-03 02:59:20,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54c2c511/3b6a0379aa44420e8599dcbc14f21c0e/FLAGee1a28cc9 [2019-10-03 02:59:20,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54c2c511/3b6a0379aa44420e8599dcbc14f21c0e [2019-10-03 02:59:20,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:20,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:20,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:20,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:21,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:21,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:21,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413d1a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21, skipping insertion in model container [2019-10-03 02:59:21,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:20" (1/1) ... [2019-10-03 02:59:21,012 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:21,071 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:21,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:21,563 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:21,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:21,708 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:21,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21 WrapperNode [2019-10-03 02:59:21,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:21,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:21,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:21,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:21,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (1/1) ... [2019-10-03 02:59:21,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:21,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:21,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:21,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:21,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (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 [2019-10-03 02:59:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:59:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:59:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:59:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:59:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:22,995 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:22,995 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:22,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:22 BoogieIcfgContainer [2019-10-03 02:59:22,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:22,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:22,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:23,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:23,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:20" (1/3) ... [2019-10-03 02:59:23,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c9457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:23, skipping insertion in model container [2019-10-03 02:59:23,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:21" (2/3) ... [2019-10-03 02:59:23,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c9457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:23, skipping insertion in model container [2019-10-03 02:59:23,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:22" (3/3) ... [2019-10-03 02:59:23,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-10-03 02:59:23,015 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:23,024 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:23,042 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:23,070 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:23,070 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:23,070 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:23,070 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:23,070 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:23,071 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:23,071 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:23,071 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2019-10-03 02:59:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:23,108 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:23,109 INFO L411 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] [2019-10-03 02:59:23,111 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:23,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2019-10-03 02:59:23,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:23,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:23,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:23,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:23,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:23,482 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:23,488 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:23,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:23,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:23,508 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2019-10-03 02:59:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:23,571 INFO L93 Difference]: Finished difference Result 184 states and 217 transitions. [2019-10-03 02:59:23,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:23,573 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:23,600 INFO L225 Difference]: With dead ends: 184 [2019-10-03 02:59:23,601 INFO L226 Difference]: Without dead ends: 173 [2019-10-03 02:59:23,606 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-10-03 02:59:23,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-10-03 02:59:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-03 02:59:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2019-10-03 02:59:23,687 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2019-10-03 02:59:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:23,688 INFO L475 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2019-10-03 02:59:23,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2019-10-03 02:59:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:23,692 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:23,693 INFO L411 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] [2019-10-03 02:59:23,693 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:23,694 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2019-10-03 02:59:23,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:23,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:23,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,697 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:23,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:23,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:23,810 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:23,812 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:23,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:23,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:23,814 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 3 states. [2019-10-03 02:59:23,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:23,852 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2019-10-03 02:59:23,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:23,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:23,860 INFO L225 Difference]: With dead ends: 164 [2019-10-03 02:59:23,861 INFO L226 Difference]: Without dead ends: 164 [2019-10-03 02:59:23,861 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-03 02:59:23,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-10-03 02:59:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-03 02:59:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2019-10-03 02:59:23,890 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2019-10-03 02:59:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:23,890 INFO L475 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2019-10-03 02:59:23,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2019-10-03 02:59:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:59:23,896 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:23,896 INFO L411 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] [2019-10-03 02:59:23,896 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:23,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2019-10-03 02:59:23,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:23,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:23,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:23,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:24,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:24,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:24,050 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:24,050 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:24,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:24,051 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 7 states. [2019-10-03 02:59:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:24,777 INFO L93 Difference]: Finished difference Result 356 states and 430 transitions. [2019-10-03 02:59:24,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:59:24,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-03 02:59:24,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:24,782 INFO L225 Difference]: With dead ends: 356 [2019-10-03 02:59:24,783 INFO L226 Difference]: Without dead ends: 356 [2019-10-03 02:59:24,783 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:59:24,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-03 02:59:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 344. [2019-10-03 02:59:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-10-03 02:59:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2019-10-03 02:59:24,826 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2019-10-03 02:59:24,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:24,827 INFO L475 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2019-10-03 02:59:24,827 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:24,827 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2019-10-03 02:59:24,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-03 02:59:24,829 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:24,829 INFO L411 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] [2019-10-03 02:59:24,829 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:24,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:24,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2019-10-03 02:59:24,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:24,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:24,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:24,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:24,833 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:25,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:25,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:25,007 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:25,008 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:25,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:25,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:25,009 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 7 states. [2019-10-03 02:59:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:25,932 INFO L93 Difference]: Finished difference Result 564 states and 698 transitions. [2019-10-03 02:59:25,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:25,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-10-03 02:59:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:25,944 INFO L225 Difference]: With dead ends: 564 [2019-10-03 02:59:25,945 INFO L226 Difference]: Without dead ends: 564 [2019-10-03 02:59:25,945 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-10-03 02:59:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 510. [2019-10-03 02:59:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-03 02:59:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 609 transitions. [2019-10-03 02:59:25,997 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 609 transitions. Word has length 70 [2019-10-03 02:59:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:25,998 INFO L475 AbstractCegarLoop]: Abstraction has 510 states and 609 transitions. [2019-10-03 02:59:25,999 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 609 transitions. [2019-10-03 02:59:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-03 02:59:26,002 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,002 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,003 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2019-10-03 02:59:26,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:26,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:26,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:26,129 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:26,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:26,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:26,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:26,130 INFO L87 Difference]: Start difference. First operand 510 states and 609 transitions. Second operand 6 states. [2019-10-03 02:59:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:26,178 INFO L93 Difference]: Finished difference Result 524 states and 625 transitions. [2019-10-03 02:59:26,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:26,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2019-10-03 02:59:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:26,183 INFO L225 Difference]: With dead ends: 524 [2019-10-03 02:59:26,183 INFO L226 Difference]: Without dead ends: 524 [2019-10-03 02:59:26,184 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2019-10-03 02:59:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 520. [2019-10-03 02:59:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2019-10-03 02:59:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2019-10-03 02:59:26,215 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2019-10-03 02:59:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:26,217 INFO L475 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2019-10-03 02:59:26,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2019-10-03 02:59:26,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-03 02:59:26,220 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,221 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,221 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2019-10-03 02:59:26,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,227 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:26,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:26,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:26,355 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:26,357 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:26,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:26,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:26,358 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 8 states. [2019-10-03 02:59:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:26,393 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2019-10-03 02:59:26,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:26,394 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2019-10-03 02:59:26,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:26,397 INFO L225 Difference]: With dead ends: 534 [2019-10-03 02:59:26,397 INFO L226 Difference]: Without dead ends: 534 [2019-10-03 02:59:26,398 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-10-03 02:59:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 528. [2019-10-03 02:59:26,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-10-03 02:59:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2019-10-03 02:59:26,418 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2019-10-03 02:59:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:26,418 INFO L475 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2019-10-03 02:59:26,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2019-10-03 02:59:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-03 02:59:26,420 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,420 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,421 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,421 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2019-10-03 02:59:26,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,424 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:26,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:26,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:26,494 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:26,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:26,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:26,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:26,496 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 4 states. [2019-10-03 02:59:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:26,812 INFO L93 Difference]: Finished difference Result 1146 states and 1417 transitions. [2019-10-03 02:59:26,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:26,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2019-10-03 02:59:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:26,819 INFO L225 Difference]: With dead ends: 1146 [2019-10-03 02:59:26,820 INFO L226 Difference]: Without dead ends: 1146 [2019-10-03 02:59:26,820 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2019-10-03 02:59:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1129. [2019-10-03 02:59:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-10-03 02:59:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1380 transitions. [2019-10-03 02:59:26,868 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1380 transitions. Word has length 113 [2019-10-03 02:59:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:26,868 INFO L475 AbstractCegarLoop]: Abstraction has 1129 states and 1380 transitions. [2019-10-03 02:59:26,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1380 transitions. [2019-10-03 02:59:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-03 02:59:26,872 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:26,872 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:26,873 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:26,875 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2019-10-03 02:59:26,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:26,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:26,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:26,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:27,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:27,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:27,085 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:27,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:27,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:27,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:27,086 INFO L87 Difference]: Start difference. First operand 1129 states and 1380 transitions. Second operand 9 states. [2019-10-03 02:59:28,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:28,783 INFO L93 Difference]: Finished difference Result 2179 states and 2661 transitions. [2019-10-03 02:59:28,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:28,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2019-10-03 02:59:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:28,793 INFO L225 Difference]: With dead ends: 2179 [2019-10-03 02:59:28,793 INFO L226 Difference]: Without dead ends: 2179 [2019-10-03 02:59:28,794 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:28,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2019-10-03 02:59:28,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1940. [2019-10-03 02:59:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2019-10-03 02:59:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2331 transitions. [2019-10-03 02:59:28,875 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2331 transitions. Word has length 117 [2019-10-03 02:59:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:28,876 INFO L475 AbstractCegarLoop]: Abstraction has 1940 states and 2331 transitions. [2019-10-03 02:59:28,876 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2331 transitions. [2019-10-03 02:59:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-03 02:59:28,881 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:28,881 INFO L411 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:28,882 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:28,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:28,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1963590153, now seen corresponding path program 1 times [2019-10-03 02:59:28,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:28,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:28,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:28,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:28,885 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-03 02:59:29,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:29,050 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:29,051 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2019-10-03 02:59:29,054 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [94], [97], [101], [102], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [144], [145], [154], [158], [162], [165], [168], [170], [176], [178], [184], [190], [198], [199], [200], [201], [211], [213], [218], [221], [222], [223], [224], [226], [231], [233], [234], [238], [241], [245], [251], [278], [279], [282], [286], [289], [292], [294], [297], [304], [307], [310], [314], [315], [318], [319], [320], [322], [323], [324], [326], [329], [331], [334], [337], [346], [348], [349], [352], [354], [360], [364], [367], [368], [369], [393], [395], [396], [463], [464], [474], [482], [483], [484], [485], [486], [487], [488], [489], [490], [524], [525], [526], [527], [530], [531], [532], [533], [534], [535], [542], [543], [546], [547], [548], [549], [550], [551], [552], [553], [554], [555], [556], [557], [558], [559], [564], [565], [566], [567], [570], [571], [572], [573], [574], [575], [576], [577], [578], [580], [581], [584], [585], [586], [587], [590], [591], [592], [594], [595], [600], [601], [602] [2019-10-03 02:59:29,108 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:29,108 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:29,195 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:29,197 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:29,201 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:29,263 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:29,264 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:29,269 INFO L420 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2019-10-03 02:59:29,270 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:29,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:29,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:29,271 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:29,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:29,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:29,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:29,272 INFO L87 Difference]: Start difference. First operand 1940 states and 2331 transitions. Second operand 2 states. [2019-10-03 02:59:29,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:29,273 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:29,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:29,274 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-10-03 02:59:29,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:29,274 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:29,274 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:29,275 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:29,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2019-10-03 02:59:29,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:29,276 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:29,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:29,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:29,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:29 BoogieIcfgContainer [2019-10-03 02:59:29,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:29,291 INFO L168 Benchmark]: Toolchain (without parser) took 8293.49 ms. Allocated memory was 138.9 MB in the beginning and 332.4 MB in the end (delta: 193.5 MB). Free memory was 84.0 MB in the beginning and 129.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 148.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,293 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.33 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 83.8 MB in the beginning and 163.3 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,298 INFO L168 Benchmark]: Boogie Preprocessor took 102.69 ms. Allocated memory is still 199.2 MB. Free memory was 163.3 MB in the beginning and 158.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,299 INFO L168 Benchmark]: RCFGBuilder took 1184.87 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.4 MB in the beginning and 185.2 MB in the end (delta: -26.8 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,301 INFO L168 Benchmark]: TraceAbstraction took 6289.18 ms. Allocated memory was 221.8 MB in the beginning and 332.4 MB in the end (delta: 110.6 MB). Free memory was 185.2 MB in the beginning and 129.2 MB in the end (delta: 56.0 MB). Peak memory consumption was 166.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:29,310 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.33 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 83.8 MB in the beginning and 163.3 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.69 ms. Allocated memory is still 199.2 MB. Free memory was 163.3 MB in the beginning and 158.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1184.87 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.4 MB in the beginning and 185.2 MB in the end (delta: -26.8 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6289.18 ms. Allocated memory was 221.8 MB in the beginning and 332.4 MB in the end (delta: 110.6 MB). Free memory was 185.2 MB in the beginning and 129.2 MB in the end (delta: 56.0 MB). Peak memory consumption was 166.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 272 locations, 1 error locations. SAFE Result, 6.2s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1817 SDtfs, 1498 SDslu, 4017 SDs, 0 SdLazy, 2049 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1940occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.788659793814433 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 332 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 905 NumberOfCodeBlocks, 905 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 896 ConstructedInterpolants, 0 QuantifiedInterpolants, 163986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 70/79 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...