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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:18,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:18,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:18,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:18,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:18,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:18,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:18,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:18,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:18,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:18,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:18,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:18,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:18,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:18,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:18,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:18,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:18,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:18,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:18,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:18,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:18,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:18,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:18,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:18,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:18,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:18,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:18,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:18,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:18,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:18,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:18,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:18,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:18,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:18,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:18,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:18,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:18,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:18,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:18,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:18,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:18,796 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 17:08:18,811 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:18,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:18,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:18,812 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:18,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:18,813 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:18,813 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:18,813 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:18,814 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:18,814 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:18,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:18,815 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:18,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:18,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:18,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:18,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:18,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:18,816 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:18,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:18,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:18,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:18,817 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:18,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:18,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:18,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:18,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:18,818 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:18,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:18,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:18,819 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:18,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:18,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:18,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:18,867 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:18,867 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:18,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product26.cil.c [2019-09-16 17:08:18,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a47bff36/631f5e4d6c0b45608b1c1ce0319ce189/FLAG4b51a6623 [2019-09-16 17:08:19,514 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:19,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product26.cil.c [2019-09-16 17:08:19,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a47bff36/631f5e4d6c0b45608b1c1ce0319ce189/FLAG4b51a6623 [2019-09-16 17:08:19,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a47bff36/631f5e4d6c0b45608b1c1ce0319ce189 [2019-09-16 17:08:19,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:19,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:19,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:19,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:19,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:19,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344f0ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:19, skipping insertion in model container [2019-09-16 17:08:19,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:19" (1/1) ... [2019-09-16 17:08:19,822 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:19,880 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:20,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:20,340 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:20,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:20,466 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20 WrapperNode [2019-09-16 17:08:20,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:20,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:20,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:20,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:20,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:20,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:20,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:20,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:20,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (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 17:08:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:20,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:20,653 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:20,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:20,664 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:20,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:20,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:20,669 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:21,829 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:21,830 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:21,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:21 BoogieIcfgContainer [2019-09-16 17:08:21,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:21,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:21,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:21,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:21,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:19" (1/3) ... [2019-09-16 17:08:21,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9304bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:21, skipping insertion in model container [2019-09-16 17:08:21,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20" (2/3) ... [2019-09-16 17:08:21,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9304bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:21, skipping insertion in model container [2019-09-16 17:08:21,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:21" (3/3) ... [2019-09-16 17:08:21,843 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product26.cil.c [2019-09-16 17:08:21,854 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:21,867 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:21,885 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:21,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:21,918 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:21,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:21,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:21,919 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:21,919 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:21,919 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:21,936 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-16 17:08:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:21,978 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:21,979 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 17:08:21,982 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:21,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:21,991 INFO L82 PathProgramCache]: Analyzing trace with hash -996229521, now seen corresponding path program 1 times [2019-09-16 17:08:21,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,044 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,327 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 17:08:22,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:22,330 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:22,354 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-16 17:08:22,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:22,382 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2019-09-16 17:08:22,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:22,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:22,397 INFO L225 Difference]: With dead ends: 124 [2019-09-16 17:08:22,398 INFO L226 Difference]: Without dead ends: 113 [2019-09-16 17:08:22,400 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 17:08:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-16 17:08:22,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-09-16 17:08:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-09-16 17:08:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2019-09-16 17:08:22,454 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 51 [2019-09-16 17:08:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:22,454 INFO L475 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2019-09-16 17:08:22,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2019-09-16 17:08:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:22,458 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:22,458 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 17:08:22,458 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:22,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:22,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1040363227, now seen corresponding path program 1 times [2019-09-16 17:08:22,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,464 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,668 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 17:08:22,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:22,669 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,672 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:22,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:22,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:22,673 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 3 states. [2019-09-16 17:08:22,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:22,695 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2019-09-16 17:08:22,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:22,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:22,698 INFO L225 Difference]: With dead ends: 104 [2019-09-16 17:08:22,698 INFO L226 Difference]: Without dead ends: 104 [2019-09-16 17:08:22,699 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 17:08:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-16 17:08:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-16 17:08:22,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-16 17:08:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2019-09-16 17:08:22,711 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 52 [2019-09-16 17:08:22,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:22,711 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2019-09-16 17:08:22,712 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:22,712 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2019-09-16 17:08:22,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:22,714 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:22,714 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:22,714 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:22,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:22,715 INFO L82 PathProgramCache]: Analyzing trace with hash -542222879, now seen corresponding path program 1 times [2019-09-16 17:08:22,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:22,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:22,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:22,718 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:22,857 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 17:08:22,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:22,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:22,858 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:22,859 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:22,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:22,860 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 7 states. [2019-09-16 17:08:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,216 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2019-09-16 17:08:23,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:23,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-16 17:08:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,219 INFO L225 Difference]: With dead ends: 104 [2019-09-16 17:08:23,219 INFO L226 Difference]: Without dead ends: 104 [2019-09-16 17:08:23,219 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 17:08:23,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-16 17:08:23,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-16 17:08:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-16 17:08:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2019-09-16 17:08:23,230 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 57 [2019-09-16 17:08:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,230 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2019-09-16 17:08:23,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2019-09-16 17:08:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:08:23,233 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:23,233 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:23,233 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:23,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:23,234 INFO L82 PathProgramCache]: Analyzing trace with hash -975500264, now seen corresponding path program 1 times [2019-09-16 17:08:23,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,237 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:23,389 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 17:08:23,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:23,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:23,390 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:23,391 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:23,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:23,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:23,392 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2019-09-16 17:08:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,634 INFO L93 Difference]: Finished difference Result 172 states and 198 transitions. [2019-09-16 17:08:23,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:23,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-16 17:08:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,639 INFO L225 Difference]: With dead ends: 172 [2019-09-16 17:08:23,639 INFO L226 Difference]: Without dead ends: 172 [2019-09-16 17:08:23,640 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 17:08:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-09-16 17:08:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2019-09-16 17:08:23,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-09-16 17:08:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 196 transitions. [2019-09-16 17:08:23,674 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 196 transitions. Word has length 65 [2019-09-16 17:08:23,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,675 INFO L475 AbstractCegarLoop]: Abstraction has 170 states and 196 transitions. [2019-09-16 17:08:23,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:23,679 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 196 transitions. [2019-09-16 17:08:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:08:23,682 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:23,682 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:23,683 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:23,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:23,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1832666876, now seen corresponding path program 1 times [2019-09-16 17:08:23,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:23,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:23,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:23,852 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 17:08:23,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:23,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:23,853 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:23,855 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:23,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:23,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:23,856 INFO L87 Difference]: Start difference. First operand 170 states and 196 transitions. Second operand 7 states. [2019-09-16 17:08:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:24,216 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2019-09-16 17:08:24,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:24,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-16 17:08:24,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:24,217 INFO L225 Difference]: With dead ends: 124 [2019-09-16 17:08:24,217 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:24,218 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:08:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:24,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:24,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-16 17:08:24,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:24,219 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:24,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:24,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:24,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:24,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:24 BoogieIcfgContainer [2019-09-16 17:08:24,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:24,227 INFO L168 Benchmark]: Toolchain (without parser) took 4425.89 ms. Allocated memory was 136.3 MB in the beginning and 276.3 MB in the end (delta: 140.0 MB). Free memory was 82.5 MB in the beginning and 166.9 MB in the end (delta: -84.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:24,228 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:24,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.55 ms. Allocated memory was 136.3 MB in the beginning and 196.6 MB in the end (delta: 60.3 MB). Free memory was 82.3 MB in the beginning and 162.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:24,230 INFO L168 Benchmark]: Boogie Preprocessor took 118.36 ms. Allocated memory is still 196.6 MB. Free memory was 162.1 MB in the beginning and 158.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:24,231 INFO L168 Benchmark]: RCFGBuilder took 1245.27 ms. Allocated memory is still 196.6 MB. Free memory was 158.1 MB in the beginning and 73.1 MB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:24,232 INFO L168 Benchmark]: TraceAbstraction took 2391.93 ms. Allocated memory was 196.6 MB in the beginning and 276.3 MB in the end (delta: 79.7 MB). Free memory was 73.1 MB in the beginning and 166.9 MB in the end (delta: -93.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:24,236 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.55 ms. Allocated memory was 136.3 MB in the beginning and 196.6 MB in the end (delta: 60.3 MB). Free memory was 82.3 MB in the beginning and 162.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.36 ms. Allocated memory is still 196.6 MB. Free memory was 162.1 MB in the beginning and 158.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1245.27 ms. Allocated memory is still 196.6 MB. Free memory was 158.1 MB in the beginning and 73.1 MB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2391.93 ms. Allocated memory was 196.6 MB in the beginning and 276.3 MB in the end (delta: 79.7 MB). Free memory was 73.1 MB in the beginning and 166.9 MB in the end (delta: -93.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 319]: 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 40 procedures, 230 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 570 SDtfs, 329 SDslu, 886 SDs, 0 SdLazy, 335 SolverSat, 102 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 31449 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...