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_spec5_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:19,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:19,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:19,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:19,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:19,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:19,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:19,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:19,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:19,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:19,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:19,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:19,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:19,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:19,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:19,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:19,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:19,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:19,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:19,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:19,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:19,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:19,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:19,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:19,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:19,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:19,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:19,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:19,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:19,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:19,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:19,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:19,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:19,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:19,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:19,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:19,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:19,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:19,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:19,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:19,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:19,702 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 13:31:19,734 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:19,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:19,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:19,738 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:19,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:19,739 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:19,739 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:19,739 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:19,739 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:19,740 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:19,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:19,742 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:19,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:19,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:19,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:19,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:19,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:19,744 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:19,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:19,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:19,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:19,748 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:19,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:19,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:19,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:19,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:19,749 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:19,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:19,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:19,749 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:19,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:19,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:19,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:19,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:19,797 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:19,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product25.cil.c [2019-09-20 13:31:19,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090ab22a1/3014b60cbe804a02a5c2e4bdbbc2c36f/FLAG4529d6dc5 [2019-09-20 13:31:20,394 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:20,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product25.cil.c [2019-09-20 13:31:20,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090ab22a1/3014b60cbe804a02a5c2e4bdbbc2c36f/FLAG4529d6dc5 [2019-09-20 13:31:20,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/090ab22a1/3014b60cbe804a02a5c2e4bdbbc2c36f [2019-09-20 13:31:20,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:20,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:20,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:20,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:20,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:20,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:20" (1/1) ... [2019-09-20 13:31:20,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18051c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:20, skipping insertion in model container [2019-09-20 13:31:20,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:20" (1/1) ... [2019-09-20 13:31:20,767 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:20,841 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:21,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:21,308 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:21,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:21,472 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:21,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21 WrapperNode [2019-09-20 13:31:21,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:21,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:21,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:21,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:21,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (1/1) ... [2019-09-20 13:31:21,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:21,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:21,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:21,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:21,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (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 13:31:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:22,954 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:22,971 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:22,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:22 BoogieIcfgContainer [2019-09-20 13:31:22,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:22,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:22,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:22,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:22,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:20" (1/3) ... [2019-09-20 13:31:22,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9870c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:22, skipping insertion in model container [2019-09-20 13:31:22,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:21" (2/3) ... [2019-09-20 13:31:22,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9870c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:22, skipping insertion in model container [2019-09-20 13:31:22,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:22" (3/3) ... [2019-09-20 13:31:22,982 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product25.cil.c [2019-09-20 13:31:22,990 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:22,999 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:23,013 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:23,034 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:23,034 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:23,034 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:23,034 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:23,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:23,035 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:23,035 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:23,035 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-09-20 13:31:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:23,080 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:23,082 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:23,085 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:23,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:23,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1780233577, now seen corresponding path program 1 times [2019-09-20 13:31:23,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:23,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:23,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,156 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:23,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:23,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:23,496 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:23,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:23,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:23,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:23,520 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-09-20 13:31:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:23,549 INFO L93 Difference]: Finished difference Result 125 states and 145 transitions. [2019-09-20 13:31:23,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:23,551 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:23,563 INFO L225 Difference]: With dead ends: 125 [2019-09-20 13:31:23,564 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:31:23,566 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 13:31:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:31:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:31:23,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:31:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2019-09-20 13:31:23,618 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 59 [2019-09-20 13:31:23,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:23,619 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2019-09-20 13:31:23,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2019-09-20 13:31:23,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:23,623 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:23,623 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:23,624 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:23,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:23,624 INFO L82 PathProgramCache]: Analyzing trace with hash -391524102, now seen corresponding path program 1 times [2019-09-20 13:31:23,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:23,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:23,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:23,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:23,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:23,765 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:23,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:23,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:23,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:23,767 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 3 states. [2019-09-20 13:31:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:23,783 INFO L93 Difference]: Finished difference Result 105 states and 121 transitions. [2019-09-20 13:31:23,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:23,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:23,786 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:31:23,786 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:31:23,787 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 13:31:23,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:31:23,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:31:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:31:23,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-09-20 13:31:23,808 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 60 [2019-09-20 13:31:23,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:23,809 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-09-20 13:31:23,809 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-09-20 13:31:23,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:31:23,812 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:23,813 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:23,813 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:23,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1537510123, now seen corresponding path program 1 times [2019-09-20 13:31:23,814 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:23,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:23,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:23,819 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:24,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:24,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:24,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:24,023 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:24,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:24,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:24,024 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 7 states. [2019-09-20 13:31:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:24,344 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-20 13:31:24,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:24,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-20 13:31:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:24,347 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:31:24,347 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:31:24,348 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 13:31:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:31:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:31:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:31:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2019-09-20 13:31:24,358 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 64 [2019-09-20 13:31:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:24,360 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2019-09-20 13:31:24,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2019-09-20 13:31:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-20 13:31:24,363 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:24,363 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:24,363 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:24,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:24,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1001424512, now seen corresponding path program 1 times [2019-09-20 13:31:24,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:24,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:24,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:24,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:24,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:24,552 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:24,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:24,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:24,555 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2019-09-20 13:31:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:24,942 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2019-09-20 13:31:24,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:24,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-09-20 13:31:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:24,943 INFO L225 Difference]: With dead ends: 81 [2019-09-20 13:31:24,944 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:24,947 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 13:31:24,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:24,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2019-09-20 13:31:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:24,950 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:24,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:24,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:24,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:24 BoogieIcfgContainer [2019-09-20 13:31:24,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:24,964 INFO L168 Benchmark]: Toolchain (without parser) took 4213.78 ms. Allocated memory was 132.1 MB in the beginning and 266.9 MB in the end (delta: 134.7 MB). Free memory was 85.6 MB in the beginning and 192.9 MB in the end (delta: -107.3 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,974 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.27 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 85.4 MB in the beginning and 163.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,976 INFO L168 Benchmark]: Boogie Preprocessor took 104.23 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,979 INFO L168 Benchmark]: RCFGBuilder took 1394.36 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.9 MB in the beginning and 191.5 MB in the end (delta: -32.5 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,981 INFO L168 Benchmark]: TraceAbstraction took 1986.49 ms. Allocated memory was 220.7 MB in the beginning and 266.9 MB in the end (delta: 46.1 MB). Free memory was 191.5 MB in the beginning and 192.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:24,987 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.27 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 85.4 MB in the beginning and 163.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.23 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 158.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1394.36 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.9 MB in the beginning and 191.5 MB in the end (delta: -32.5 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1986.49 ms. Allocated memory was 220.7 MB in the beginning and 266.9 MB in the end (delta: 46.1 MB). Free memory was 191.5 MB in the beginning and 192.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 231 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 449 SDtfs, 203 SDslu, 472 SDs, 0 SdLazy, 279 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 26654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...