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_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:13,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:13,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:13,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:13,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:13,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:13,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:13,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:13,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:13,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:13,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:13,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:13,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:13,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:13,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:13,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:13,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:13,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:13,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:13,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:13,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:13,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:13,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:13,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:13,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:13,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:13,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:13,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:13,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:13,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:13,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:13,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:13,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:13,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:13,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:13,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:13,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:13,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:13,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:13,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:13,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:13,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:13,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:13,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:13,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:13,976 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:13,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:13,976 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:13,977 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:13,977 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:13,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:13,977 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:13,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:13,978 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:13,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:13,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:13,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:13,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:13,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:13,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:13,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:13,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:13,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:13,980 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:13,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:13,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:13,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:13,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:13,981 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:13,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:13,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:13,982 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:14,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:14,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:14,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:14,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:14,033 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:14,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product19.cil.c [2019-09-16 17:08:14,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b41150cb/b83cfcd19cfc440fabbe8181dfed2db8/FLAGc07c53493 [2019-09-16 17:08:14,575 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:14,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product19.cil.c [2019-09-16 17:08:14,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b41150cb/b83cfcd19cfc440fabbe8181dfed2db8/FLAGc07c53493 [2019-09-16 17:08:14,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b41150cb/b83cfcd19cfc440fabbe8181dfed2db8 [2019-09-16 17:08:14,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:14,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:14,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:14,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:14,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:14,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cc01ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14, skipping insertion in model container [2019-09-16 17:08:14,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:14,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:15,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:15,433 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:15,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:15,550 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:15,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15 WrapperNode [2019-09-16 17:08:15,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:15,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:15,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:15,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:15,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:15,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:15,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:15,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:15,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:15,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:15,747 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:16,740 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:16,740 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:16,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:16 BoogieIcfgContainer [2019-09-16 17:08:16,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:16,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:16,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:16,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:16,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:14" (1/3) ... [2019-09-16 17:08:16,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c014e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:16, skipping insertion in model container [2019-09-16 17:08:16,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (2/3) ... [2019-09-16 17:08:16,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c014e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:16, skipping insertion in model container [2019-09-16 17:08:16,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:16" (3/3) ... [2019-09-16 17:08:16,750 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product19.cil.c [2019-09-16 17:08:16,761 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:16,770 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:16,787 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:16,816 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:16,816 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:16,816 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:16,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:16,817 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:16,817 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:16,817 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:16,817 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-09-16 17:08:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:16,851 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:16,852 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:16,855 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:16,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:16,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1074296443, now seen corresponding path program 1 times [2019-09-16 17:08:16,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:16,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:16,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:16,919 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:17,249 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:17,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:17,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:17,274 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 2 states. [2019-09-16 17:08:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,300 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2019-09-16 17:08:17,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:17,302 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:17,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,315 INFO L225 Difference]: With dead ends: 126 [2019-09-16 17:08:17,315 INFO L226 Difference]: Without dead ends: 115 [2019-09-16 17:08:17,317 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-16 17:08:17,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-16 17:08:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-16 17:08:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2019-09-16 17:08:17,372 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 51 [2019-09-16 17:08:17,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,372 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2019-09-16 17:08:17,372 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2019-09-16 17:08:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:17,376 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,376 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] [2019-09-16 17:08:17,377 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,377 INFO L82 PathProgramCache]: Analyzing trace with hash 981139915, now seen corresponding path program 1 times [2019-09-16 17:08:17,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:17,490 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,492 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:17,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:17,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:17,493 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2019-09-16 17:08:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,508 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2019-09-16 17:08:17,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:17,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:17,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,512 INFO L225 Difference]: With dead ends: 106 [2019-09-16 17:08:17,513 INFO L226 Difference]: Without dead ends: 106 [2019-09-16 17:08:17,514 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-09-16 17:08:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-09-16 17:08:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-09-16 17:08:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2019-09-16 17:08:17,541 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 52 [2019-09-16 17:08:17,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,542 INFO L475 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2019-09-16 17:08:17,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2019-09-16 17:08:17,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:17,545 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,545 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] [2019-09-16 17:08:17,546 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1888478302, now seen corresponding path program 1 times [2019-09-16 17:08:17,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,550 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:17,728 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:17,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:17,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:17,729 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 7 states. [2019-09-16 17:08:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:18,131 INFO L93 Difference]: Finished difference Result 235 states and 282 transitions. [2019-09-16 17:08:18,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:18,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:18,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:18,137 INFO L225 Difference]: With dead ends: 235 [2019-09-16 17:08:18,140 INFO L226 Difference]: Without dead ends: 235 [2019-09-16 17:08:18,141 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-09-16 17:08:18,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 227. [2019-09-16 17:08:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-09-16 17:08:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 276 transitions. [2019-09-16 17:08:18,202 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 276 transitions. Word has length 56 [2019-09-16 17:08:18,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:18,203 INFO L475 AbstractCegarLoop]: Abstraction has 227 states and 276 transitions. [2019-09-16 17:08:18,203 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 276 transitions. [2019-09-16 17:08:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:08:18,208 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:18,209 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] [2019-09-16 17:08:18,209 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:18,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1204376986, now seen corresponding path program 1 times [2019-09-16 17:08:18,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:18,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:18,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,215 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:18,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:18,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:18,430 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:18,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:18,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:18,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:18,432 INFO L87 Difference]: Start difference. First operand 227 states and 276 transitions. Second operand 6 states. [2019-09-16 17:08:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:18,612 INFO L93 Difference]: Finished difference Result 408 states and 498 transitions. [2019-09-16 17:08:18,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:18,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-16 17:08:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:18,620 INFO L225 Difference]: With dead ends: 408 [2019-09-16 17:08:18,620 INFO L226 Difference]: Without dead ends: 408 [2019-09-16 17:08:18,621 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-09-16 17:08:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2019-09-16 17:08:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-09-16 17:08:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 492 transitions. [2019-09-16 17:08:18,690 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 492 transitions. Word has length 62 [2019-09-16 17:08:18,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:18,691 INFO L475 AbstractCegarLoop]: Abstraction has 402 states and 492 transitions. [2019-09-16 17:08:18,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:18,691 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 492 transitions. [2019-09-16 17:08:18,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-16 17:08:18,700 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:18,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:18,701 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:18,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:18,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2071048374, now seen corresponding path program 1 times [2019-09-16 17:08:18,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:18,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:18,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,711 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:18,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:18,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:18,858 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:18,859 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:18,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:18,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:18,859 INFO L87 Difference]: Start difference. First operand 402 states and 492 transitions. Second operand 6 states. [2019-09-16 17:08:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:19,104 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions. [2019-09-16 17:08:19,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:19,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-16 17:08:19,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:19,108 INFO L225 Difference]: With dead ends: 294 [2019-09-16 17:08:19,108 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:19,110 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:19,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-16 17:08:19,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:19,111 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:19,111 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:19,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:19,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:19,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:19 BoogieIcfgContainer [2019-09-16 17:08:19,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:19,121 INFO L168 Benchmark]: Toolchain (without parser) took 4214.75 ms. Allocated memory was 140.5 MB in the beginning and 260.0 MB in the end (delta: 119.5 MB). Free memory was 85.9 MB in the beginning and 148.9 MB in the end (delta: -63.0 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,122 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.18 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 85.7 MB in the beginning and 166.7 MB in the end (delta: -81.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,125 INFO L168 Benchmark]: Boogie Preprocessor took 107.72 ms. Allocated memory is still 200.3 MB. Free memory was 166.7 MB in the beginning and 161.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,127 INFO L168 Benchmark]: RCFGBuilder took 1081.71 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 161.9 MB in the beginning and 195.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,128 INFO L168 Benchmark]: TraceAbstraction took 2374.71 ms. Allocated memory was 226.0 MB in the beginning and 260.0 MB in the end (delta: 34.1 MB). Free memory was 195.4 MB in the beginning and 148.9 MB in the end (delta: 46.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,138 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 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.18 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 85.7 MB in the beginning and 166.7 MB in the end (delta: -81.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.72 ms. Allocated memory is still 200.3 MB. Free memory was 166.7 MB in the beginning and 161.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1081.71 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 161.9 MB in the beginning and 195.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2374.71 ms. Allocated memory was 226.0 MB in the beginning and 260.0 MB in the end (delta: 34.1 MB). Free memory was 195.4 MB in the beginning and 148.9 MB in the end (delta: 46.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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, 225 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 650 SDtfs, 354 SDslu, 1321 SDs, 0 SdLazy, 294 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 26354 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...