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_spec2_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:52,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:52,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:52,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:52,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:52,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:52,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:52,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:52,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:52,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:52,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:52,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:52,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:52,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:52,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:52,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:52,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:52,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:52,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:52,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:52,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:52,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:52,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:52,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:52,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:52,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:52,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:52,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:52,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:52,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:52,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:52,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:52,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:52,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:52,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:52,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:52,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:52,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:52,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:52,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:52,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:52,953 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 13:29:52,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:52,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:52,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:52,968 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:52,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:52,969 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:52,969 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:52,970 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:52,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:52,970 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:52,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:52,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:52,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:52,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:52,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:52,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:52,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:52,973 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:52,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:52,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:52,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:52,974 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:52,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:52,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:52,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:52,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:52,975 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:52,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:52,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:52,975 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:53,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:53,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:53,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:53,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:53,041 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:53,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product08.cil.c [2019-09-20 13:29:53,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d2360/5a28edea9e0a419bb180a0a0a844cda4/FLAG519a327d8 [2019-09-20 13:29:53,702 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:53,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product08.cil.c [2019-09-20 13:29:53,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d2360/5a28edea9e0a419bb180a0a0a844cda4/FLAG519a327d8 [2019-09-20 13:29:53,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d2360/5a28edea9e0a419bb180a0a0a844cda4 [2019-09-20 13:29:53,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:53,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:53,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:53,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:53,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:53,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f69be82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53, skipping insertion in model container [2019-09-20 13:29:53,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,973 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:54,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:54,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:54,493 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:54,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:54,647 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:54,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54 WrapperNode [2019-09-20 13:29:54,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:54,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:54,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:54,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (1/1) ... [2019-09-20 13:29:54,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:54,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:54,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:54,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:54,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (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 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:56,125 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:56,125 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:56,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:56 BoogieIcfgContainer [2019-09-20 13:29:56,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:56,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:56,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:56,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:56,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:53" (1/3) ... [2019-09-20 13:29:56,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244a2880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:56, skipping insertion in model container [2019-09-20 13:29:56,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:54" (2/3) ... [2019-09-20 13:29:56,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244a2880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:56, skipping insertion in model container [2019-09-20 13:29:56,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:56" (3/3) ... [2019-09-20 13:29:56,136 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product08.cil.c [2019-09-20 13:29:56,146 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:56,155 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:56,172 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:56,201 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:56,201 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:56,201 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:56,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:56,202 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:56,202 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:56,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:56,202 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-09-20 13:29:56,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:56,236 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,237 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] [2019-09-20 13:29:56,240 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1535792598, now seen corresponding path program 1 times [2019-09-20 13:29:56,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,309 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,642 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 13:29:56,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:56,645 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:56,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:56,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:56,669 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-09-20 13:29:56,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,694 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2019-09-20 13:29:56,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:56,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:29:56,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,709 INFO L225 Difference]: With dead ends: 125 [2019-09-20 13:29:56,709 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:29:56,711 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 13:29:56,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:29:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:29:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:29:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2019-09-20 13:29:56,758 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 51 [2019-09-20 13:29:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,759 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2019-09-20 13:29:56,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2019-09-20 13:29:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:56,763 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,763 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 13:29:56,764 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,764 INFO L82 PathProgramCache]: Analyzing trace with hash 626792369, now seen corresponding path program 1 times [2019-09-20 13:29:56,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,767 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,868 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 13:29:56,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:56,869 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:56,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:56,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:56,872 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand 3 states. [2019-09-20 13:29:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,886 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2019-09-20 13:29:56,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:56,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:29:56,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,889 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:29:56,889 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:29:56,890 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 13:29:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:29:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:29:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:29:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2019-09-20 13:29:56,902 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 52 [2019-09-20 13:29:56,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,903 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2019-09-20 13:29:56,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2019-09-20 13:29:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:29:56,906 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,906 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] [2019-09-20 13:29:56,906 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1563941770, now seen corresponding path program 1 times [2019-09-20 13:29:56,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,910 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,117 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 13:29:57,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:57,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:57,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:57,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:57,119 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand 7 states. [2019-09-20 13:29:57,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,594 INFO L93 Difference]: Finished difference Result 233 states and 282 transitions. [2019-09-20 13:29:57,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:57,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:29:57,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,599 INFO L225 Difference]: With dead ends: 233 [2019-09-20 13:29:57,599 INFO L226 Difference]: Without dead ends: 233 [2019-09-20 13:29:57,600 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 13:29:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-20 13:29:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 221. [2019-09-20 13:29:57,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-20 13:29:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 270 transitions. [2019-09-20 13:29:57,643 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 270 transitions. Word has length 57 [2019-09-20 13:29:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,644 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 270 transitions. [2019-09-20 13:29:57,644 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:57,644 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 270 transitions. [2019-09-20 13:29:57,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:29:57,648 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:57,648 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] [2019-09-20 13:29:57,649 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1958499685, now seen corresponding path program 1 times [2019-09-20 13:29:57,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:57,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:57,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:57,653 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:57,825 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 13:29:57,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:57,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:57,826 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:57,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:57,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:57,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:57,828 INFO L87 Difference]: Start difference. First operand 221 states and 270 transitions. Second operand 6 states. [2019-09-20 13:29:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:58,015 INFO L93 Difference]: Finished difference Result 396 states and 486 transitions. [2019-09-20 13:29:58,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:58,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:29:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:58,020 INFO L225 Difference]: With dead ends: 396 [2019-09-20 13:29:58,020 INFO L226 Difference]: Without dead ends: 396 [2019-09-20 13:29:58,021 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 13:29:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-09-20 13:29:58,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 390. [2019-09-20 13:29:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-09-20 13:29:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2019-09-20 13:29:58,076 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 62 [2019-09-20 13:29:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:58,077 INFO L475 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2019-09-20 13:29:58,077 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2019-09-20 13:29:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:29:58,081 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:58,081 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] [2019-09-20 13:29:58,082 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:58,082 INFO L82 PathProgramCache]: Analyzing trace with hash 2068118967, now seen corresponding path program 1 times [2019-09-20 13:29:58,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:58,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:58,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:58,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:58,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:58,241 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 13:29:58,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:58,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:58,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:58,244 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:58,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:58,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:58,245 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand 7 states. [2019-09-20 13:29:58,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:58,625 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-20 13:29:58,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:58,625 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:29:58,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:58,626 INFO L225 Difference]: With dead ends: 302 [2019-09-20 13:29:58,626 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:58,627 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 [2019-09-20 13:29:58,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:58,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:29:58,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:58,631 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:58,631 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:58,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:58,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:58 BoogieIcfgContainer [2019-09-20 13:29:58,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:58,642 INFO L168 Benchmark]: Toolchain (without parser) took 4685.26 ms. Allocated memory was 133.7 MB in the beginning and 257.4 MB in the end (delta: 123.7 MB). Free memory was 88.4 MB in the beginning and 115.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 96.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,643 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.24 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 166.6 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,647 INFO L168 Benchmark]: Boogie Preprocessor took 98.80 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,648 INFO L168 Benchmark]: RCFGBuilder took 1380.26 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 162.3 MB in the beginning and 196.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,650 INFO L168 Benchmark]: TraceAbstraction took 2510.16 ms. Allocated memory was 226.5 MB in the beginning and 257.4 MB in the end (delta: 30.9 MB). Free memory was 194.7 MB in the beginning and 115.8 MB in the end (delta: 78.9 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:58,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.24 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 88.2 MB in the beginning and 166.6 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.80 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1380.26 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 162.3 MB in the beginning and 196.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2510.16 ms. Allocated memory was 226.5 MB in the beginning and 257.4 MB in the end (delta: 30.9 MB). Free memory was 194.7 MB in the beginning and 115.8 MB in the end (delta: 78.9 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 600]: 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 38 procedures, 219 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 635 SDtfs, 361 SDslu, 1206 SDs, 0 SdLazy, 432 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s 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=390occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 30083 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...