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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:34,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:34,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:34,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:34,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:34,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:34,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:34,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:34,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:34,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:34,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:34,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:34,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:34,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:34,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:34,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:34,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:34,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:34,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:34,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:34,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:34,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:34,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:34,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:34,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:34,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:34,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:34,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:34,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:34,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:34,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:34,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:34,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:34,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:34,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:34,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:34,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:34,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:34,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:34,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:34,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:34,768 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 [2019-09-20 13:29:34,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:34,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:34,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:34,803 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:34,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:34,805 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:34,805 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:34,805 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:34,805 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:34,806 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:34,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:34,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:34,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:34,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:34,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:34,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:34,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:34,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:34,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:34,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:34,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:34,808 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:34,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:34,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:34,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:34,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:34,809 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:34,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:34,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:34,810 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:34,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:34,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:34,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:34,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:34,856 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:34,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product22.cil.c [2019-09-20 13:29:34,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9060ff0a4/42ef43b8f3bf4185b7563c2b8be3065c/FLAG3294b4e77 [2019-09-20 13:29:35,442 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:35,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product22.cil.c [2019-09-20 13:29:35,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9060ff0a4/42ef43b8f3bf4185b7563c2b8be3065c/FLAG3294b4e77 [2019-09-20 13:29:35,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9060ff0a4/42ef43b8f3bf4185b7563c2b8be3065c [2019-09-20 13:29:35,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:35,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:35,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:35,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:35,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:35,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9b5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:35,828 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:36,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:36,356 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:36,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:36,515 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:36,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36 WrapperNode [2019-09-20 13:29:36,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:36,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:36,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:36,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:36,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:36,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:36,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:36,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:36,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (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 [2019-09-20 13:29:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:36,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:36,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:36,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:36,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:36,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:29:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:37,828 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:37,828 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:37,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:37 BoogieIcfgContainer [2019-09-20 13:29:37,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:37,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:37,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:37,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:37,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:35" (1/3) ... [2019-09-20 13:29:37,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751d3b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:37, skipping insertion in model container [2019-09-20 13:29:37,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (2/3) ... [2019-09-20 13:29:37,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751d3b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:37, skipping insertion in model container [2019-09-20 13:29:37,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:37" (3/3) ... [2019-09-20 13:29:37,838 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product22.cil.c [2019-09-20 13:29:37,848 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:37,856 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:37,873 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:37,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:37,901 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:37,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:37,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:37,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:37,901 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:37,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:37,902 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2019-09-20 13:29:37,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:37,935 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:37,936 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] [2019-09-20 13:29:37,939 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:37,943 INFO L82 PathProgramCache]: Analyzing trace with hash 235935867, now seen corresponding path program 1 times [2019-09-20 13:29:37,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:37,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:37,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,996 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:38,340 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,346 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:38,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:38,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:38,367 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2019-09-20 13:29:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,416 INFO L93 Difference]: Finished difference Result 134 states and 157 transitions. [2019-09-20 13:29:38,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:38,422 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:38,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,438 INFO L225 Difference]: With dead ends: 134 [2019-09-20 13:29:38,447 INFO L226 Difference]: Without dead ends: 123 [2019-09-20 13:29:38,452 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 [2019-09-20 13:29:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-20 13:29:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-20 13:29:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-20 13:29:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2019-09-20 13:29:38,513 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2019-09-20 13:29:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,514 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2019-09-20 13:29:38,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2019-09-20 13:29:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:38,518 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,518 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] [2019-09-20 13:29:38,519 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash 185530365, now seen corresponding path program 1 times [2019-09-20 13:29:38,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:38,629 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,632 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:38,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:38,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:38,633 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 3 states. [2019-09-20 13:29:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,666 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2019-09-20 13:29:38,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:38,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,671 INFO L225 Difference]: With dead ends: 114 [2019-09-20 13:29:38,671 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:29:38,673 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 [2019-09-20 13:29:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:29:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:29:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:29:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-20 13:29:38,697 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2019-09-20 13:29:38,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,697 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-20 13:29:38,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-20 13:29:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:38,700 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,700 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] [2019-09-20 13:29:38,700 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash -175734546, now seen corresponding path program 1 times [2019-09-20 13:29:38,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,704 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:38,852 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,852 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:38,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:38,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:38,853 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 7 states. [2019-09-20 13:29:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:39,144 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2019-09-20 13:29:39,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:39,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:39,147 INFO L225 Difference]: With dead ends: 114 [2019-09-20 13:29:39,147 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:29:39,147 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 [2019-09-20 13:29:39,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:29:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:29:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:29:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-09-20 13:29:39,157 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2019-09-20 13:29:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:39,158 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-09-20 13:29:39,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:39,158 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-09-20 13:29:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:29:39,160 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:39,161 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, 1, 1, 1, 1] [2019-09-20 13:29:39,161 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:39,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:39,161 INFO L82 PathProgramCache]: Analyzing trace with hash -733588211, now seen corresponding path program 1 times [2019-09-20 13:29:39,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:39,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:39,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:39,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:39,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:39,340 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:39,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:39,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:39,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:39,341 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 6 states. [2019-09-20 13:29:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:39,529 INFO L93 Difference]: Finished difference Result 197 states and 232 transitions. [2019-09-20 13:29:39,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:39,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-20 13:29:39,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:39,533 INFO L225 Difference]: With dead ends: 197 [2019-09-20 13:29:39,533 INFO L226 Difference]: Without dead ends: 197 [2019-09-20 13:29:39,534 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 [2019-09-20 13:29:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-20 13:29:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2019-09-20 13:29:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-20 13:29:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 230 transitions. [2019-09-20 13:29:39,558 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 230 transitions. Word has length 65 [2019-09-20 13:29:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:39,559 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 230 transitions. [2019-09-20 13:29:39,559 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 230 transitions. [2019-09-20 13:29:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:29:39,567 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:39,567 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:39,567 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:39,568 INFO L82 PathProgramCache]: Analyzing trace with hash 828198353, now seen corresponding path program 1 times [2019-09-20 13:29:39,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:39,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:39,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,573 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:39,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:39,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:39,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:39,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:39,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:39,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:39,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:39,750 INFO L87 Difference]: Start difference. First operand 195 states and 230 transitions. Second operand 7 states. [2019-09-20 13:29:40,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:40,082 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2019-09-20 13:29:40,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:40,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-20 13:29:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:40,083 INFO L225 Difference]: With dead ends: 130 [2019-09-20 13:29:40,083 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:40,084 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:29:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:40,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:40,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-20 13:29:40,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:40,085 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:40,085 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:40,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:40,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:40,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:40 BoogieIcfgContainer [2019-09-20 13:29:40,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:40,094 INFO L168 Benchmark]: Toolchain (without parser) took 4351.13 ms. Allocated memory was 137.9 MB in the beginning and 248.5 MB in the end (delta: 110.6 MB). Free memory was 92.8 MB in the beginning and 117.1 MB in the end (delta: -24.3 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,095 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 112.1 MB in the beginning and 111.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.08 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 166.2 MB in the end (delta: -73.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,098 INFO L168 Benchmark]: Boogie Preprocessor took 102.23 ms. Allocated memory is still 200.8 MB. Free memory was 166.2 MB in the beginning and 161.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,099 INFO L168 Benchmark]: RCFGBuilder took 1211.11 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 161.7 MB in the beginning and 192.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,100 INFO L168 Benchmark]: TraceAbstraction took 2260.19 ms. Allocated memory was 235.4 MB in the beginning and 248.5 MB in the end (delta: 13.1 MB). Free memory was 192.5 MB in the beginning and 117.1 MB in the end (delta: 75.3 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,104 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 137.9 MB. Free memory was 112.1 MB in the beginning and 111.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.08 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 166.2 MB in the end (delta: -73.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.23 ms. Allocated memory is still 200.8 MB. Free memory was 166.2 MB in the beginning and 161.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.11 ms. Allocated memory was 200.8 MB in the beginning and 235.4 MB in the end (delta: 34.6 MB). Free memory was 161.7 MB in the beginning and 192.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2260.19 ms. Allocated memory was 235.4 MB in the beginning and 248.5 MB in the end (delta: 13.1 MB). Free memory was 192.5 MB in the beginning and 117.1 MB in the end (delta: 75.3 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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, 228 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 631 SDtfs, 301 SDslu, 998 SDs, 0 SdLazy, 359 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 29832 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...