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_spec1_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:51,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:51,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:51,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:51,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:51,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:51,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:51,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:51,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:51,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:51,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:51,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:51,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:51,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:51,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:51,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:51,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:51,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:51,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:51,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:51,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:51,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:51,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:51,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:51,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:51,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:51,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:51,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:51,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:51,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:51,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:51,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:51,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:51,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:51,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:51,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:51,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:51,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:51,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:51,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:51,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:51,883 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 [2019-09-16 17:07:51,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:51,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:51,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:51,899 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:51,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:51,900 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:51,900 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:51,900 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:51,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:51,901 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:51,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:51,902 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:51,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:51,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:51,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:51,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:51,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:51,903 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:51,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:51,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:51,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:51,904 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:51,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:51,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:51,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:51,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:51,905 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:51,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:51,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:51,905 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:51,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:51,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:51,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:51,979 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:51,980 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:51,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product27.cil.c [2019-09-16 17:07:52,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f3bec58/e734cb746f684b1f94a3a4dda8f9f482/FLAG369dde789 [2019-09-16 17:07:52,619 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:52,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product27.cil.c [2019-09-16 17:07:52,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f3bec58/e734cb746f684b1f94a3a4dda8f9f482/FLAG369dde789 [2019-09-16 17:07:52,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f3bec58/e734cb746f684b1f94a3a4dda8f9f482 [2019-09-16 17:07:52,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:52,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:52,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:52,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:52,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:52,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:52" (1/1) ... [2019-09-16 17:07:52,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d74bca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:52, skipping insertion in model container [2019-09-16 17:07:52,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:52" (1/1) ... [2019-09-16 17:07:52,914 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:52,962 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:53,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:53,414 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:53,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:53,561 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:53,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53 WrapperNode [2019-09-16 17:07:53,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:53,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:53,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:53,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:53,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (1/1) ... [2019-09-16 17:07:53,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:53,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:53,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:53,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:53,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (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 [2019-09-16 17:07:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:53,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:53,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:53,745 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:53,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:53,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:53,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:54,859 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:54,859 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:54,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:54 BoogieIcfgContainer [2019-09-16 17:07:54,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:54,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:54,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:54,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:54,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:52" (1/3) ... [2019-09-16 17:07:54,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8188d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:54, skipping insertion in model container [2019-09-16 17:07:54,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:53" (2/3) ... [2019-09-16 17:07:54,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8188d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:54, skipping insertion in model container [2019-09-16 17:07:54,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:54" (3/3) ... [2019-09-16 17:07:54,889 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product27.cil.c [2019-09-16 17:07:54,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:54,909 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:54,927 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:54,955 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:54,956 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:54,956 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:54,956 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:54,956 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:54,957 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:54,957 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:54,957 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:54,978 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-09-16 17:07:54,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:54,991 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:54,992 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:54,995 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:55,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:55,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1851171777, now seen corresponding path program 1 times [2019-09-16 17:07:55,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:55,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:55,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,063 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:55,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:55,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:55,366 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:55,372 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:55,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:55,391 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-09-16 17:07:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:55,427 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2019-09-16 17:07:55,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:55,429 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:55,442 INFO L225 Difference]: With dead ends: 121 [2019-09-16 17:07:55,442 INFO L226 Difference]: Without dead ends: 110 [2019-09-16 17:07:55,444 INFO L636 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 [2019-09-16 17:07:55,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-16 17:07:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-16 17:07:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-16 17:07:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2019-09-16 17:07:55,495 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 46 [2019-09-16 17:07:55,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:55,496 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2019-09-16 17:07:55,496 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2019-09-16 17:07:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:55,499 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:55,500 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:55,500 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:55,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:55,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1354219367, now seen corresponding path program 1 times [2019-09-16 17:07:55,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:55,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:55,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,504 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:55,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:55,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:55,667 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:55,669 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:55,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:55,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:55,670 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 3 states. [2019-09-16 17:07:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:55,696 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2019-09-16 17:07:55,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:55,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:55,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:55,699 INFO L225 Difference]: With dead ends: 101 [2019-09-16 17:07:55,700 INFO L226 Difference]: Without dead ends: 101 [2019-09-16 17:07:55,700 INFO L636 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 [2019-09-16 17:07:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-09-16 17:07:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-09-16 17:07:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-09-16 17:07:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2019-09-16 17:07:55,712 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 47 [2019-09-16 17:07:55,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:55,713 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2019-09-16 17:07:55,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2019-09-16 17:07:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:07:55,715 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:55,715 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:55,716 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:55,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1234220754, now seen corresponding path program 1 times [2019-09-16 17:07:55,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:55,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:55,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:55,720 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:55,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:55,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:55,861 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:55,862 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:55,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:55,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:55,863 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 7 states. [2019-09-16 17:07:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:56,258 INFO L93 Difference]: Finished difference Result 228 states and 272 transitions. [2019-09-16 17:07:56,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:07:56,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:07:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:56,263 INFO L225 Difference]: With dead ends: 228 [2019-09-16 17:07:56,263 INFO L226 Difference]: Without dead ends: 228 [2019-09-16 17:07:56,263 INFO L636 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 [2019-09-16 17:07:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-09-16 17:07:56,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 220. [2019-09-16 17:07:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-16 17:07:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2019-09-16 17:07:56,305 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 51 [2019-09-16 17:07:56,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:56,306 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2019-09-16 17:07:56,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2019-09-16 17:07:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:07:56,309 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:56,309 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:56,309 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1809763606, now seen corresponding path program 1 times [2019-09-16 17:07:56,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:56,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:56,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:56,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:56,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:56,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:56,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:07:56,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:56,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:56,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:56,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:56,446 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand 6 states. [2019-09-16 17:07:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:56,635 INFO L93 Difference]: Finished difference Result 401 states and 488 transitions. [2019-09-16 17:07:56,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:56,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:07:56,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:56,644 INFO L225 Difference]: With dead ends: 401 [2019-09-16 17:07:56,644 INFO L226 Difference]: Without dead ends: 401 [2019-09-16 17:07:56,645 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:07:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-09-16 17:07:56,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 395. [2019-09-16 17:07:56,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-09-16 17:07:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 482 transitions. [2019-09-16 17:07:56,712 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 482 transitions. Word has length 57 [2019-09-16 17:07:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:56,712 INFO L475 AbstractCegarLoop]: Abstraction has 395 states and 482 transitions. [2019-09-16 17:07:56,712 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 482 transitions. [2019-09-16 17:07:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:07:56,724 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:56,724 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:56,724 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:56,725 INFO L82 PathProgramCache]: Analyzing trace with hash -239053862, now seen corresponding path program 1 times [2019-09-16 17:07:56,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:56,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:56,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:56,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:56,728 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:56,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:56,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:56,895 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:56,896 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:56,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:56,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:56,898 INFO L87 Difference]: Start difference. First operand 395 states and 482 transitions. Second operand 7 states. [2019-09-16 17:07:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:57,257 INFO L93 Difference]: Finished difference Result 290 states and 337 transitions. [2019-09-16 17:07:57,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:57,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:07:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:57,258 INFO L225 Difference]: With dead ends: 290 [2019-09-16 17:07:57,258 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:57,259 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:07:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:57,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-16 17:07:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:57,260 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:57,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:57,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:57,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:57 BoogieIcfgContainer [2019-09-16 17:07:57,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:57,269 INFO L168 Benchmark]: Toolchain (without parser) took 4370.58 ms. Allocated memory was 139.5 MB in the beginning and 262.1 MB in the end (delta: 122.7 MB). Free memory was 86.1 MB in the beginning and 139.0 MB in the end (delta: -52.9 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,270 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.64 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.9 MB in the beginning and 165.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,272 INFO L168 Benchmark]: Boogie Preprocessor took 87.42 ms. Allocated memory is still 199.2 MB. Free memory was 165.1 MB in the beginning and 161.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,273 INFO L168 Benchmark]: RCFGBuilder took 1230.01 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 160.7 MB in the beginning and 193.7 MB in the end (delta: -33.0 MB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,274 INFO L168 Benchmark]: TraceAbstraction took 2385.29 ms. Allocated memory was 222.8 MB in the beginning and 262.1 MB in the end (delta: 39.3 MB). Free memory was 193.7 MB in the beginning and 139.0 MB in the end (delta: 54.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:57,278 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.64 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.9 MB in the beginning and 165.1 MB in the end (delta: -79.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.42 ms. Allocated memory is still 199.2 MB. Free memory was 165.1 MB in the beginning and 161.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1230.01 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 160.7 MB in the beginning and 193.7 MB in the end (delta: -33.0 MB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2385.29 ms. Allocated memory was 222.8 MB in the beginning and 262.1 MB in the end (delta: 39.3 MB). Free memory was 193.7 MB in the beginning and 139.0 MB in the end (delta: 54.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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 39 procedures, 227 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 404 SDslu, 1112 SDs, 0 SdLazy, 387 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=395occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 25527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...