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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:34,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:34,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:34,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:34,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:34,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:34,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:34,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:34,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:34,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:34,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:34,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:34,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:34,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:34,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:34,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:34,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:34,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:34,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:34,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:34,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:34,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:34,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:34,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:34,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:34,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:34,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:34,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:34,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:34,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:34,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:34,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:34,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:34,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:34,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:34,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:34,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:34,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:34,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:34,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:34,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:34,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:34,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:34,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:34,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:34,811 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:34,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:34,812 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:34,812 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:34,812 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:34,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:34,813 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:34,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:34,815 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:34,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:34,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:34,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:34,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:34,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:34,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:34,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:34,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:34,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:34,818 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:34,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:34,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:34,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:34,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:34,820 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:34,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:34,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:34,820 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:34,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:34,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:34,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:34,882 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:34,882 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:34,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product23.cil.c [2019-09-20 13:29:34,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23a7b0bb/a3f3fe6d706042288c2b75e0355e8529/FLAG96cfbca82 [2019-09-20 13:29:35,537 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:35,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product23.cil.c [2019-09-20 13:29:35,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23a7b0bb/a3f3fe6d706042288c2b75e0355e8529/FLAG96cfbca82 [2019-09-20 13:29:35,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23a7b0bb/a3f3fe6d706042288c2b75e0355e8529 [2019-09-20 13:29:35,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:35,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:35,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:35,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:35,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:35,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb84c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:35,883 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:36,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:36,325 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:36,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:36,464 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:36,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36 WrapperNode [2019-09-20 13:29:36,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:36,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:36,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:36,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:36,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... [2019-09-20 13:29:36,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:36,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:36,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:36,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:36,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:29:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:38,001 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:38,002 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:38,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:38 BoogieIcfgContainer [2019-09-20 13:29:38,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:38,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:38,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:38,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:38,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:35" (1/3) ... [2019-09-20 13:29:38,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426adde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:38, skipping insertion in model container [2019-09-20 13:29:38,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:36" (2/3) ... [2019-09-20 13:29:38,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426adde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:38, skipping insertion in model container [2019-09-20 13:29:38,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:38" (3/3) ... [2019-09-20 13:29:38,012 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product23.cil.c [2019-09-20 13:29:38,022 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:38,032 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:38,048 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:38,070 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:38,070 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:38,070 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:38,070 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:38,071 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:38,071 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:38,071 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:38,071 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2019-09-20 13:29:38,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:38,104 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,107 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:38,112 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,119 INFO L82 PathProgramCache]: Analyzing trace with hash -841254379, now seen corresponding path program 1 times [2019-09-20 13:29:38,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,177 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:38,474 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:38,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:38,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:38,500 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 2 states. [2019-09-20 13:29:38,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,550 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2019-09-20 13:29:38,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:38,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,568 INFO L225 Difference]: With dead ends: 136 [2019-09-20 13:29:38,569 INFO L226 Difference]: Without dead ends: 125 [2019-09-20 13:29:38,571 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-09-20 13:29:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-09-20 13:29:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-09-20 13:29:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 149 transitions. [2019-09-20 13:29:38,619 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 149 transitions. Word has length 46 [2019-09-20 13:29:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,619 INFO L475 AbstractCegarLoop]: Abstraction has 125 states and 149 transitions. [2019-09-20 13:29:38,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 149 transitions. [2019-09-20 13:29:38,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:38,623 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,623 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:38,624 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,624 INFO L82 PathProgramCache]: Analyzing trace with hash 63149069, now seen corresponding path program 1 times [2019-09-20 13:29:38,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:38,792 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:38,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:38,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:38,795 INFO L87 Difference]: Start difference. First operand 125 states and 149 transitions. Second operand 3 states. [2019-09-20 13:29:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,812 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2019-09-20 13:29:38,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:38,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:38,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,815 INFO L225 Difference]: With dead ends: 116 [2019-09-20 13:29:38,816 INFO L226 Difference]: Without dead ends: 116 [2019-09-20 13:29:38,816 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-09-20 13:29:38,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-09-20 13:29:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-09-20 13:29:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2019-09-20 13:29:38,829 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 47 [2019-09-20 13:29:38,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,829 INFO L475 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2019-09-20 13:29:38,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2019-09-20 13:29:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:38,832 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,832 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:38,833 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1536896169, now seen corresponding path program 1 times [2019-09-20 13:29:38,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,837 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:38,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:38,965 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,966 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:38,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:38,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:38,967 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand 7 states. [2019-09-20 13:29:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:39,463 INFO L93 Difference]: Finished difference Result 258 states and 312 transitions. [2019-09-20 13:29:39,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:39,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:29:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:39,468 INFO L225 Difference]: With dead ends: 258 [2019-09-20 13:29:39,468 INFO L226 Difference]: Without dead ends: 258 [2019-09-20 13:29:39,469 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:29:39,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-09-20 13:29:39,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 250. [2019-09-20 13:29:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-09-20 13:29:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 306 transitions. [2019-09-20 13:29:39,509 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 306 transitions. Word has length 51 [2019-09-20 13:29:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:39,510 INFO L475 AbstractCegarLoop]: Abstraction has 250 states and 306 transitions. [2019-09-20 13:29:39,510 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 306 transitions. [2019-09-20 13:29:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:29:39,516 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:39,516 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:39,516 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:39,517 INFO L82 PathProgramCache]: Analyzing trace with hash -625105013, now seen corresponding path program 1 times [2019-09-20 13:29:39,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:39,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:39,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,521 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:39,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:39,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:39,678 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:39,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:39,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:39,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:39,680 INFO L87 Difference]: Start difference. First operand 250 states and 306 transitions. Second operand 6 states. [2019-09-20 13:29:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:39,914 INFO L93 Difference]: Finished difference Result 461 states and 568 transitions. [2019-09-20 13:29:39,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:39,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-20 13:29:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:39,923 INFO L225 Difference]: With dead ends: 461 [2019-09-20 13:29:39,923 INFO L226 Difference]: Without dead ends: 461 [2019-09-20 13:29:39,924 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-09-20 13:29:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 455. [2019-09-20 13:29:39,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-09-20 13:29:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 562 transitions. [2019-09-20 13:29:39,981 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 562 transitions. Word has length 57 [2019-09-20 13:29:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:39,982 INFO L475 AbstractCegarLoop]: Abstraction has 455 states and 562 transitions. [2019-09-20 13:29:39,982 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 562 transitions. [2019-09-20 13:29:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:29:39,985 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:39,985 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] [2019-09-20 13:29:39,986 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:39,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1731722097, now seen corresponding path program 1 times [2019-09-20 13:29:39,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:39,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:39,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:39,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:40,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:40,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:40,134 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:40,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:40,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:40,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:40,135 INFO L87 Difference]: Start difference. First operand 455 states and 562 transitions. Second operand 7 states. [2019-09-20 13:29:40,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:40,477 INFO L93 Difference]: Finished difference Result 310 states and 357 transitions. [2019-09-20 13:29:40,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:40,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-20 13:29:40,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:40,479 INFO L225 Difference]: With dead ends: 310 [2019-09-20 13:29:40,479 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:40,480 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:29:40,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:40,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-20 13:29:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:40,484 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:40,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:40,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:40,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:40 BoogieIcfgContainer [2019-09-20 13:29:40,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:40,493 INFO L168 Benchmark]: Toolchain (without parser) took 4682.79 ms. Allocated memory was 133.7 MB in the beginning and 260.6 MB in the end (delta: 126.9 MB). Free memory was 87.4 MB in the beginning and 117.1 MB in the end (delta: -29.7 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,495 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.20 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 87.2 MB in the beginning and 165.5 MB in the end (delta: -78.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,499 INFO L168 Benchmark]: Boogie Preprocessor took 126.46 ms. Allocated memory is still 200.8 MB. Free memory was 165.5 MB in the beginning and 161.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,500 INFO L168 Benchmark]: RCFGBuilder took 1411.13 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.2 MB in the beginning and 191.6 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,502 INFO L168 Benchmark]: TraceAbstraction took 2485.66 ms. Allocated memory was 226.5 MB in the beginning and 260.6 MB in the end (delta: 34.1 MB). Free memory was 191.6 MB in the beginning and 117.1 MB in the end (delta: 74.5 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:40,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.20 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 87.2 MB in the beginning and 165.5 MB in the end (delta: -78.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.46 ms. Allocated memory is still 200.8 MB. Free memory was 165.5 MB in the beginning and 161.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1411.13 ms. Allocated memory was 200.8 MB in the beginning and 226.5 MB in the end (delta: 25.7 MB). Free memory was 161.2 MB in the beginning and 191.6 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2485.66 ms. Allocated memory was 226.5 MB in the beginning and 260.6 MB in the end (delta: 34.1 MB). Free memory was 191.6 MB in the beginning and 117.1 MB in the end (delta: 74.5 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 935]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 230 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 697 SDtfs, 479 SDslu, 1272 SDs, 0 SdLazy, 448 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 25527 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...