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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:33,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:33,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:33,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:33,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:33,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:33,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:33,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:33,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:33,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:33,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:33,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:33,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:33,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:33,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:33,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:33,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:33,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:33,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:33,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:33,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:33,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:33,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:33,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:33,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:33,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:33,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:33,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:33,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:33,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:33,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:33,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:33,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:33,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:33,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:33,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:33,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:33,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:33,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:33,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:33,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:33,725 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 13:29:33,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:33,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:33,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:33,743 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:33,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:33,743 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:33,744 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:33,744 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:33,746 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:33,746 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:33,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:33,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:33,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:33,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:33,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:33,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:33,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:33,748 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:33,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:33,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:33,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:33,750 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:33,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:33,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:33,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:33,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:33,751 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:33,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:33,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:33,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:33,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:33,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:33,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:33,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:33,822 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:33,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2019-09-20 13:29:33,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f75cc70/47676215e37a4a518cb0a6918409667e/FLAG7efcd4568 [2019-09-20 13:29:34,397 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:34,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2019-09-20 13:29:34,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f75cc70/47676215e37a4a518cb0a6918409667e/FLAG7efcd4568 [2019-09-20 13:29:34,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f75cc70/47676215e37a4a518cb0a6918409667e [2019-09-20 13:29:34,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:34,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:34,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:34,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:34,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:34,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7643b030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34, skipping insertion in model container [2019-09-20 13:29:34,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,707 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:34,761 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:35,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:35,213 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:35,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:35,373 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:35,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35 WrapperNode [2019-09-20 13:29:35,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:35,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:35,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:35,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:35,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (1/1) ... [2019-09-20 13:29:35,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:35,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:35,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:35,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:35,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (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 13:29:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:35,582 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:35,582 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:35,582 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:36,717 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:36,718 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:36,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:36 BoogieIcfgContainer [2019-09-20 13:29:36,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:36,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:36,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:36,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:36,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:34" (1/3) ... [2019-09-20 13:29:36,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289cdf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:36, skipping insertion in model container [2019-09-20 13:29:36,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:35" (2/3) ... [2019-09-20 13:29:36,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289cdf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:36, skipping insertion in model container [2019-09-20 13:29:36,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:36" (3/3) ... [2019-09-20 13:29:36,747 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2019-09-20 13:29:36,757 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:36,767 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:36,784 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:36,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:36,815 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:36,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:36,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:36,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:36,816 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:36,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:36,816 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-09-20 13:29:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:36,848 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,849 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 13:29:36,851 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,857 INFO L82 PathProgramCache]: Analyzing trace with hash -2002333427, now seen corresponding path program 1 times [2019-09-20 13:29:36,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,909 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,214 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 13:29:37,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:37,218 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,223 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:37,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:37,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:37,247 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-09-20 13:29:37,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,291 INFO L93 Difference]: Finished difference Result 125 states and 145 transitions. [2019-09-20 13:29:37,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:37,297 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,316 INFO L225 Difference]: With dead ends: 125 [2019-09-20 13:29:37,325 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:29:37,329 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 13:29:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:29:37,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:29:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:29:37,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-20 13:29:37,404 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2019-09-20 13:29:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,406 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-20 13:29:37,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:37,406 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-20 13:29:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:37,412 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:37,412 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 13:29:37,413 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash -736950579, now seen corresponding path program 1 times [2019-09-20 13:29:37,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:37,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:37,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,417 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,565 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 13:29:37,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:37,565 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,567 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:37,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:37,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:37,568 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 3 states. [2019-09-20 13:29:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,594 INFO L93 Difference]: Finished difference Result 105 states and 121 transitions. [2019-09-20 13:29:37,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:37,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,598 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:29:37,598 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:29:37,599 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 13:29:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:29:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:29:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:29:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-09-20 13:29:37,617 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2019-09-20 13:29:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,618 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-09-20 13:29:37,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-09-20 13:29:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:37,620 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:37,621 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:37,621 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:37,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1634875871, now seen corresponding path program 1 times [2019-09-20 13:29:37,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:37,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:37,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,624 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,767 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 13:29:37,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:37,768 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,768 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:37,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:37,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:37,769 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 7 states. [2019-09-20 13:29:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,196 INFO L93 Difference]: Finished difference Result 236 states and 282 transitions. [2019-09-20 13:29:38,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:38,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,201 INFO L225 Difference]: With dead ends: 236 [2019-09-20 13:29:38,202 INFO L226 Difference]: Without dead ends: 236 [2019-09-20 13:29:38,203 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 13:29:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-20 13:29:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 224. [2019-09-20 13:29:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-20 13:29:38,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 270 transitions. [2019-09-20 13:29:38,244 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 270 transitions. Word has length 52 [2019-09-20 13:29:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,245 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 270 transitions. [2019-09-20 13:29:38,245 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:38,245 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 270 transitions. [2019-09-20 13:29:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:29:38,248 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,250 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 13:29:38,250 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,251 INFO L82 PathProgramCache]: Analyzing trace with hash 186070900, now seen corresponding path program 1 times [2019-09-20 13:29:38,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,255 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,420 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 13:29:38,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:38,421 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,422 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:38,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:38,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:38,422 INFO L87 Difference]: Start difference. First operand 224 states and 270 transitions. Second operand 6 states. [2019-09-20 13:29:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:38,599 INFO L93 Difference]: Finished difference Result 409 states and 496 transitions. [2019-09-20 13:29:38,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:38,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-20 13:29:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:38,604 INFO L225 Difference]: With dead ends: 409 [2019-09-20 13:29:38,604 INFO L226 Difference]: Without dead ends: 409 [2019-09-20 13:29:38,605 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 13:29:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-09-20 13:29:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 403. [2019-09-20 13:29:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-09-20 13:29:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 490 transitions. [2019-09-20 13:29:38,632 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 490 transitions. Word has length 57 [2019-09-20 13:29:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:38,632 INFO L475 AbstractCegarLoop]: Abstraction has 403 states and 490 transitions. [2019-09-20 13:29:38,633 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 490 transitions. [2019-09-20 13:29:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:29:38,636 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:38,636 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 13:29:38,636 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:38,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1322088904, now seen corresponding path program 1 times [2019-09-20 13:29:38,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:38,639 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:38,759 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 13:29:38,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:38,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:38,759 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:38,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:38,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:38,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:38,761 INFO L87 Difference]: Start difference. First operand 403 states and 490 transitions. Second operand 7 states. [2019-09-20 13:29:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:39,061 INFO L93 Difference]: Finished difference Result 298 states and 345 transitions. [2019-09-20 13:29:39,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:39,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-20 13:29:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:39,063 INFO L225 Difference]: With dead ends: 298 [2019-09-20 13:29:39,063 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:39,063 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 13:29:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:39,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-20 13:29:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:39,065 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:39,065 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:39,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:39,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:39 BoogieIcfgContainer [2019-09-20 13:29:39,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:39,074 INFO L168 Benchmark]: Toolchain (without parser) took 4384.41 ms. Allocated memory was 132.1 MB in the beginning and 263.2 MB in the end (delta: 131.1 MB). Free memory was 86.8 MB in the beginning and 134.9 MB in the end (delta: -48.1 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,075 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.46 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 164.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,077 INFO L168 Benchmark]: Boogie Preprocessor took 105.61 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,078 INFO L168 Benchmark]: RCFGBuilder took 1239.31 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 76.7 MB in the end (delta: 84.0 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,079 INFO L168 Benchmark]: TraceAbstraction took 2334.93 ms. Allocated memory was 222.3 MB in the beginning and 263.2 MB in the end (delta: 40.9 MB). Free memory was 193.2 MB in the beginning and 134.9 MB in the end (delta: 58.3 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:39,083 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.46 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 164.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.61 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1239.31 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 76.7 MB in the end (delta: 84.0 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2334.93 ms. Allocated memory was 222.3 MB in the beginning and 263.2 MB in the end (delta: 40.9 MB). Free memory was 193.2 MB in the beginning and 134.9 MB in the end (delta: 58.3 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 628 SDtfs, 362 SDslu, 1207 SDs, 0 SdLazy, 413 SolverSat, 71 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=403occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 25848 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...