java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:56:43,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:56:43,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:56:43,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:56:43,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:56:43,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:56:43,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:56:43,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:56:43,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:56:43,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:56:43,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:56:43,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:56:43,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:56:43,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:56:43,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:56:43,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:56:43,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:56:43,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:56:43,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:56:43,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:56:43,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:56:43,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:56:43,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:56:43,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:56:43,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:56:43,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:56:43,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:56:43,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:56:43,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:56:43,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:56:43,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:56:43,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:56:43,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:56:43,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:56:43,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:56:43,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:56:43,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:56:43,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:56:43,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:56:43,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:56:43,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:56:43,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:56:43,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:56:43,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:56:43,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:56:43,845 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:56:43,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:56:43,847 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:56:43,847 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:56:43,847 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:56:43,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:56:43,847 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:56:43,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:56:43,851 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:56:43,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:56:43,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:56:43,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:56:43,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:56:43,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:56:43,852 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:56:43,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:56:43,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:56:43,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:56:43,854 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:56:43,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:56:43,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:43,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:56:43,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:56:43,855 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:56:43,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:56:43,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:56:43,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:56:43,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:56:43,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:56:43,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:56:43,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:56:43,946 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:56:43,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-10-03 02:56:44,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2545720a5/6ed2e529023d44018070447e753e41bb/FLAG854920063 [2019-10-03 02:56:44,618 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:44,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product17.cil.c [2019-10-03 02:56:44,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2545720a5/6ed2e529023d44018070447e753e41bb/FLAG854920063 [2019-10-03 02:56:44,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2545720a5/6ed2e529023d44018070447e753e41bb [2019-10-03 02:56:44,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:44,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:44,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:44,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:44,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:44,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:44" (1/1) ... [2019-10-03 02:56:44,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d840b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:44, skipping insertion in model container [2019-10-03 02:56:44,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:44" (1/1) ... [2019-10-03 02:56:44,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:44,972 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:45,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:45,389 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:45,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:45,553 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:45,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45 WrapperNode [2019-10-03 02:56:45,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:45,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:45,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:45,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:45,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:45,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:45,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:45,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:45,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:45,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:45,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:45,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:45,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:45,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:45,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:45,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:45,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:45,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:45,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:45,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:56:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:56:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:56:45,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:56:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:56:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:56:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:56:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:56:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:56:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:56:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:56:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:56:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:56:45,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:56:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:45,734 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:56:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:56:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:56:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:56:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:56:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:56:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:56:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:56:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:56:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:56:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:56:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:56:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:46,867 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:46,868 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:56:46,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:46 BoogieIcfgContainer [2019-10-03 02:56:46,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:46,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:46,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:46,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:46,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:44" (1/3) ... [2019-10-03 02:56:46,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca1bb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:46, skipping insertion in model container [2019-10-03 02:56:46,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45" (2/3) ... [2019-10-03 02:56:46,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca1bb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:46, skipping insertion in model container [2019-10-03 02:56:46,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:46" (3/3) ... [2019-10-03 02:56:46,895 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product17.cil.c [2019-10-03 02:56:46,905 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:46,915 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:46,932 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:46,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:46,957 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:46,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:46,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:46,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:46,958 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:46,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:46,958 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2019-10-03 02:56:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:56:46,994 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:46,995 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:46,998 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:47,004 INFO L82 PathProgramCache]: Analyzing trace with hash -697118378, now seen corresponding path program 1 times [2019-10-03 02:56:47,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:47,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:47,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,061 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:47,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:47,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:47,401 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:47,411 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:47,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:47,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:47,432 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2019-10-03 02:56:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:47,469 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2019-10-03 02:56:47,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:47,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:56:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:47,480 INFO L225 Difference]: With dead ends: 115 [2019-10-03 02:56:47,481 INFO L226 Difference]: Without dead ends: 104 [2019-10-03 02:56:47,483 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:47,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-10-03 02:56:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-10-03 02:56:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-10-03 02:56:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2019-10-03 02:56:47,540 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 46 [2019-10-03 02:56:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:47,541 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2019-10-03 02:56:47,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2019-10-03 02:56:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:56:47,548 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:47,548 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:47,549 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:47,550 INFO L82 PathProgramCache]: Analyzing trace with hash -133554589, now seen corresponding path program 1 times [2019-10-03 02:56:47,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:47,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:47,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,554 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:47,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:47,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:47,739 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:47,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:47,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:47,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:47,742 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand 3 states. [2019-10-03 02:56:47,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:47,756 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-10-03 02:56:47,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:47,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:56:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:47,759 INFO L225 Difference]: With dead ends: 95 [2019-10-03 02:56:47,759 INFO L226 Difference]: Without dead ends: 95 [2019-10-03 02:56:47,760 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-03 02:56:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-10-03 02:56:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-03 02:56:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-10-03 02:56:47,771 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 47 [2019-10-03 02:56:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:47,771 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-10-03 02:56:47,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-10-03 02:56:47,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:56:47,774 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:47,775 INFO L411 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] [2019-10-03 02:56:47,776 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:47,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:47,776 INFO L82 PathProgramCache]: Analyzing trace with hash 70814948, now seen corresponding path program 1 times [2019-10-03 02:56:47,776 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:47,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:47,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,780 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:47,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:47,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:47,922 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:47,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:47,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:47,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:47,924 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 3 states. [2019-10-03 02:56:47,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:47,948 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2019-10-03 02:56:47,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:47,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-10-03 02:56:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:47,955 INFO L225 Difference]: With dead ends: 95 [2019-10-03 02:56:47,956 INFO L226 Difference]: Without dead ends: 95 [2019-10-03 02:56:47,956 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-03 02:56:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-10-03 02:56:47,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-03 02:56:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2019-10-03 02:56:47,973 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 51 [2019-10-03 02:56:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:47,974 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2019-10-03 02:56:47,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2019-10-03 02:56:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:56:47,979 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:47,979 INFO L411 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] [2019-10-03 02:56:47,980 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:47,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:47,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1870012479, now seen corresponding path program 1 times [2019-10-03 02:56:47,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:47,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:47,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:48,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:48,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:48,144 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:48,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:48,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:48,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:48,145 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand 6 states. [2019-10-03 02:56:48,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:48,379 INFO L93 Difference]: Finished difference Result 159 states and 184 transitions. [2019-10-03 02:56:48,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:48,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-10-03 02:56:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:48,386 INFO L225 Difference]: With dead ends: 159 [2019-10-03 02:56:48,386 INFO L226 Difference]: Without dead ends: 159 [2019-10-03 02:56:48,387 INFO L640 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 [2019-10-03 02:56:48,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-10-03 02:56:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2019-10-03 02:56:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-03 02:56:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-10-03 02:56:48,426 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-10-03 02:56:48,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:48,427 INFO L475 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-10-03 02:56:48,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:48,427 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-10-03 02:56:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-03 02:56:48,435 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:48,435 INFO L411 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] [2019-10-03 02:56:48,437 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:48,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:48,438 INFO L82 PathProgramCache]: Analyzing trace with hash 654505667, now seen corresponding path program 1 times [2019-10-03 02:56:48,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:48,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:48,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,445 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:48,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:48,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:48,666 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:48,666 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:48,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:48,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:48,670 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 7 states. [2019-10-03 02:56:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:49,010 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2019-10-03 02:56:49,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:49,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2019-10-03 02:56:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:49,011 INFO L225 Difference]: With dead ends: 112 [2019-10-03 02:56:49,011 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:49,012 INFO L640 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 [2019-10-03 02:56:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:49,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2019-10-03 02:56:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:49,013 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:49,013 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:49,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:49,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:49 BoogieIcfgContainer [2019-10-03 02:56:49,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:49,022 INFO L168 Benchmark]: Toolchain (without parser) took 4142.43 ms. Allocated memory was 132.1 MB in the beginning and 264.2 MB in the end (delta: 132.1 MB). Free memory was 86.0 MB in the beginning and 188.4 MB in the end (delta: -102.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,023 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.94 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 85.8 MB in the beginning and 164.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,025 INFO L168 Benchmark]: Boogie Preprocessor took 91.74 ms. Allocated memory is still 199.2 MB. Free memory was 164.7 MB in the beginning and 160.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,026 INFO L168 Benchmark]: RCFGBuilder took 1222.54 ms. Allocated memory is still 199.2 MB. Free memory was 160.3 MB in the beginning and 76.5 MB in the end (delta: 83.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,027 INFO L168 Benchmark]: TraceAbstraction took 2131.66 ms. Allocated memory was 222.3 MB in the beginning and 264.2 MB in the end (delta: 41.9 MB). Free memory was 193.2 MB in the beginning and 188.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,031 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.94 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 85.8 MB in the beginning and 164.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.74 ms. Allocated memory is still 199.2 MB. Free memory was 164.7 MB in the beginning and 160.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1222.54 ms. Allocated memory is still 199.2 MB. Free memory was 160.3 MB in the beginning and 76.5 MB in the end (delta: 83.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2131.66 ms. Allocated memory was 222.3 MB in the beginning and 264.2 MB in the end (delta: 41.9 MB). Free memory was 193.2 MB in the beginning and 188.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: 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 37 procedures, 214 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 526 SDtfs, 234 SDslu, 587 SDs, 0 SdLazy, 209 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 25229 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...