/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:31:44,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:31:44,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:31:44,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:31:44,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:31:44,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:31:44,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:31:44,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:31:44,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:31:44,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:31:44,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:31:44,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:31:44,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:31:44,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:31:44,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:31:44,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:31:44,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:31:44,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:31:44,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:31:44,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:31:44,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:31:44,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:31:44,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:31:44,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:31:44,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:31:44,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:31:44,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:31:44,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:31:44,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:31:44,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:31:44,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:31:44,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:31:44,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:31:44,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:31:44,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:31:44,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:31:44,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:31:44,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:31:44,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:31:44,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:31:44,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:31:44,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:31:44,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:31:44,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:31:44,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:31:44,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:31:44,763 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:31:44,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:31:44,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:31:44,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:31:44,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:31:44,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:31:44,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:31:44,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:31:44,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:31:44,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:31:44,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:31:44,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:31:44,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:31:44,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:31:44,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:31:44,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:31:44,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:31:44,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:31:44,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:31:44,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:31:44,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:31:44,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:31:44,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:31:44,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:31:44,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:31:44,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:31:45,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:31:45,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:31:45,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:31:45,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:31:45,067 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:31:45,067 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-17 11:31:45,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0be35299/5fd7f5086c274ac6b49b8bc676005d6b/FLAGe9bef0b33 [2020-07-17 11:31:45,596 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:31:45,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-17 11:31:45,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0be35299/5fd7f5086c274ac6b49b8bc676005d6b/FLAGe9bef0b33 [2020-07-17 11:31:45,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0be35299/5fd7f5086c274ac6b49b8bc676005d6b [2020-07-17 11:31:45,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:31:45,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:31:45,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:45,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:31:45,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:31:45,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:45" (1/1) ... [2020-07-17 11:31:45,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16705c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:45, skipping insertion in model container [2020-07-17 11:31:45,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:45" (1/1) ... [2020-07-17 11:31:46,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:31:46,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:31:46,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:46,541 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:31:46,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:46,737 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:31:46,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46 WrapperNode [2020-07-17 11:31:46,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:46,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:31:46,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:31:46,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:31:46,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (1/1) ... [2020-07-17 11:31:46,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:31:46,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:31:46,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:31:46,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:31:46,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (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 [2020-07-17 11:31:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:31:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:31:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-17 11:31:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 11:31:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:31:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:31:46,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:31:46,915 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:31:46,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:31:46,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:31:46,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:31:46,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:31:46,915 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:31:46,915 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:31:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:31:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:31:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:31:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:31:46,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:31:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:31:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:31:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:31:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:31:48,081 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:31:48,082 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:31:48,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:48 BoogieIcfgContainer [2020-07-17 11:31:48,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:31:48,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:31:48,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:31:48,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:31:48,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:31:45" (1/3) ... [2020-07-17 11:31:48,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0753c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:48, skipping insertion in model container [2020-07-17 11:31:48,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:46" (2/3) ... [2020-07-17 11:31:48,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0753c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:48, skipping insertion in model container [2020-07-17 11:31:48,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:48" (3/3) ... [2020-07-17 11:31:48,095 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-07-17 11:31:48,105 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:31:48,112 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:31:48,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:31:48,148 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:31:48,148 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:31:48,148 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:31:48,149 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:31:48,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:31:48,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:31:48,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:31:48,149 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:31:48,172 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-07-17 11:31:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:31:48,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:48,181 INFO L422 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] [2020-07-17 11:31:48,182 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1715921214, now seen corresponding path program 1 times [2020-07-17 11:31:48,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:48,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593539263] [2020-07-17 11:31:48,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,846 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:48,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593539263] [2020-07-17 11:31:48,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:48,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:31:48,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540942896] [2020-07-17 11:31:48,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:31:48,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:48,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:31:48,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:31:49,002 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-07-17 11:31:49,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:49,953 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-07-17 11:31:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:31:49,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:31:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:49,969 INFO L225 Difference]: With dead ends: 240 [2020-07-17 11:31:49,969 INFO L226 Difference]: Without dead ends: 131 [2020-07-17 11:31:49,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:31:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-17 11:31:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-07-17 11:31:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-17 11:31:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-17 11:31:50,058 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-07-17 11:31:50,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:50,058 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-17 11:31:50,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:31:50,059 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-17 11:31:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:31:50,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:50,064 INFO L422 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] [2020-07-17 11:31:50,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:31:50,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:50,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1789709038, now seen corresponding path program 1 times [2020-07-17 11:31:50,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:50,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767877741] [2020-07-17 11:31:50,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,424 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:50,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767877741] [2020-07-17 11:31:50,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:50,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:31:50,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020293371] [2020-07-17 11:31:50,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:31:50,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:31:50,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:31:50,472 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-07-17 11:31:50,917 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:31:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:51,498 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-07-17 11:31:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:31:51,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:31:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:51,502 INFO L225 Difference]: With dead ends: 160 [2020-07-17 11:31:51,502 INFO L226 Difference]: Without dead ends: 115 [2020-07-17 11:31:51,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:31:51,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-07-17 11:31:51,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-07-17 11:31:51,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-17 11:31:51,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-07-17 11:31:51,538 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-07-17 11:31:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:51,539 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-07-17 11:31:51,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:31:51,539 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-07-17 11:31:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 11:31:51,541 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:51,542 INFO L422 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] [2020-07-17 11:31:51,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:31:51,542 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:51,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:51,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1277285199, now seen corresponding path program 1 times [2020-07-17 11:31:51,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:51,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745375789] [2020-07-17 11:31:51,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,863 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:51,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745375789] [2020-07-17 11:31:51,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:51,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:31:51,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906217223] [2020-07-17 11:31:51,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:31:51,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:51,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:31:51,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:31:51,993 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 8 states. [2020-07-17 11:31:52,374 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:52,694 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:31:52,980 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:53,215 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:53,971 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:31:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:55,135 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2020-07-17 11:31:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:31:55,136 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-17 11:31:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:55,139 INFO L225 Difference]: With dead ends: 326 [2020-07-17 11:31:55,140 INFO L226 Difference]: Without dead ends: 259 [2020-07-17 11:31:55,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 11:31:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-17 11:31:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2020-07-17 11:31:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-17 11:31:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2020-07-17 11:31:55,201 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2020-07-17 11:31:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:55,202 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2020-07-17 11:31:55,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:31:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2020-07-17 11:31:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-17 11:31:55,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:55,205 INFO L422 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] [2020-07-17 11:31:55,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:31:55,205 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:55,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2002784121, now seen corresponding path program 1 times [2020-07-17 11:31:55,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:55,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142315381] [2020-07-17 11:31:55,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,536 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:55,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142315381] [2020-07-17 11:31:55,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:55,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 11:31:55,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495870679] [2020-07-17 11:31:55,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:31:55,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:55,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:31:55,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:31:55,628 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 7 states. [2020-07-17 11:31:56,066 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:57,061 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:57,376 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:57,616 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:57,866 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:58,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:58,147 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2020-07-17 11:31:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:31:58,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-07-17 11:31:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:58,152 INFO L225 Difference]: With dead ends: 537 [2020-07-17 11:31:58,152 INFO L226 Difference]: Without dead ends: 371 [2020-07-17 11:31:58,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:31:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-17 11:31:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2020-07-17 11:31:58,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-17 11:31:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2020-07-17 11:31:58,254 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2020-07-17 11:31:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:58,254 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2020-07-17 11:31:58,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:31:58,255 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2020-07-17 11:31:58,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-17 11:31:58,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:58,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:31:58,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:31:58,259 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:58,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:58,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1296160083, now seen corresponding path program 1 times [2020-07-17 11:31:58,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:58,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108496734] [2020-07-17 11:31:58,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,495 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:58,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108496734] [2020-07-17 11:31:58,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:58,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 11:31:58,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573574240] [2020-07-17 11:31:58,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:31:58,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:58,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:31:58,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:31:58,556 INFO L87 Difference]: Start difference. First operand 349 states and 425 transitions. Second operand 5 states. [2020-07-17 11:31:58,839 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:59,374 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2020-07-17 11:31:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:31:59,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-07-17 11:31:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:59,379 INFO L225 Difference]: With dead ends: 642 [2020-07-17 11:31:59,379 INFO L226 Difference]: Without dead ends: 317 [2020-07-17 11:31:59,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:31:59,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-17 11:31:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 303. [2020-07-17 11:31:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-07-17 11:31:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 354 transitions. [2020-07-17 11:31:59,474 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 354 transitions. Word has length 65 [2020-07-17 11:31:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:59,474 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 354 transitions. [2020-07-17 11:31:59,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:31:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 354 transitions. [2020-07-17 11:31:59,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-17 11:31:59,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:59,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:31:59,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:31:59,477 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:59,478 INFO L82 PathProgramCache]: Analyzing trace with hash -423236225, now seen corresponding path program 1 times [2020-07-17 11:31:59,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:59,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485382984] [2020-07-17 11:31:59,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:31:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:31:59,632 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:31:59,632 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:31:59,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:31:59,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:31:59 BoogieIcfgContainer [2020-07-17 11:31:59,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:31:59,754 INFO L168 Benchmark]: Toolchain (without parser) took 13768.23 ms. Allocated memory was 146.8 MB in the beginning and 420.5 MB in the end (delta: 273.7 MB). Free memory was 102.0 MB in the beginning and 307.9 MB in the end (delta: -205.9 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,755 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.16 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 101.6 MB in the beginning and 177.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,757 INFO L168 Benchmark]: Boogie Preprocessor took 96.26 ms. Allocated memory is still 206.6 MB. Free memory was 177.3 MB in the beginning and 172.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,758 INFO L168 Benchmark]: RCFGBuilder took 1251.73 ms. Allocated memory was 206.6 MB in the beginning and 233.3 MB in the end (delta: 26.7 MB). Free memory was 172.7 MB in the beginning and 197.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,759 INFO L168 Benchmark]: TraceAbstraction took 11664.65 ms. Allocated memory was 233.3 MB in the beginning and 420.5 MB in the end (delta: 187.2 MB). Free memory was 197.8 MB in the beginning and 307.9 MB in the end (delta: -110.0 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:59,763 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.16 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 101.6 MB in the beginning and 177.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.26 ms. Allocated memory is still 206.6 MB. Free memory was 177.3 MB in the beginning and 172.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.73 ms. Allocated memory was 206.6 MB in the beginning and 233.3 MB in the end (delta: 26.7 MB). Free memory was 172.7 MB in the beginning and 197.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11664.65 ms. Allocated memory was 233.3 MB in the beginning and 420.5 MB in the end (delta: 187.2 MB). Free memory was 197.8 MB in the beginning and 307.9 MB in the end (delta: -110.0 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=167, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L864] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L870] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L874] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L875] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L94] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L96] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L106] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___2)) [L130] tmp___1 = __VERIFIER_nondet_int() [L132] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L141] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L51] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L57] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 429 SDtfs, 644 SDslu, 342 SDs, 0 SdLazy, 1355 SolverSat, 382 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 160 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 80396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...