/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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:06:55,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:06:55,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:06:55,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:06:55,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:06:55,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:06:55,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:06:55,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:06:55,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:06:55,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:06:55,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:06:55,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:06:55,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:06:55,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:06:55,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:06:55,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:06:55,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:06:55,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:06:55,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:06:55,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:06:55,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:06:55,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:06:55,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:06:55,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:06:55,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:06:55,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:06:55,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:06:55,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:06:55,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:06:55,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:06:55,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:06:55,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:06:55,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:06:55,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:06:55,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:06:55,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:06:55,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:06:55,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:06:55,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:06:55,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:06:55,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:06:55,811 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 [2020-08-22 16:06:55,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:06:55,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:06:55,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:06:55,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:06:55,849 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:06:55,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:06:55,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:06:55,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:06:55,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:06:55,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:06:55,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:06:55,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:06:55,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:06:55,851 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:06:55,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:06:55,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:06:55,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:06:55,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:06:55,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:06:55,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:06:55,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:06:55,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:06:55,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:06:55,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:06:55,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:06:55,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:06:55,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:06:55,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:06:55,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:06:55,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:06:56,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:06:56,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:06:56,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:06:56,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:06:56,192 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:06:56,192 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-08-22 16:06:56,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a520943ae/f1dfcd92fc464afca55b7c220e1c5072/FLAG354ab4efd [2020-08-22 16:06:56,754 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:06:56,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-08-22 16:06:56,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a520943ae/f1dfcd92fc464afca55b7c220e1c5072/FLAG354ab4efd [2020-08-22 16:06:57,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a520943ae/f1dfcd92fc464afca55b7c220e1c5072 [2020-08-22 16:06:57,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:06:57,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:06:57,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:06:57,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:06:57,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:06:57,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28445469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57, skipping insertion in model container [2020-08-22 16:06:57,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:06:57,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:06:57,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:06:57,622 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:06:57,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:06:57,756 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:06:57,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57 WrapperNode [2020-08-22 16:06:57,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:06:57,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:06:57,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:06:57,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:06:57,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (1/1) ... [2020-08-22 16:06:57,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:06:57,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:06:57,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:06:57,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:06:57,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (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 [2020-08-22 16:06:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:06:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:06:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 16:06:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 16:06:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 16:06:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 16:06:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 16:06:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 16:06:57,924 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 16:06:57,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 16:06:57,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 16:06:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 16:06:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 16:06:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 16:06:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 16:06:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 16:06:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 16:06:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 16:06:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 16:06:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 16:06:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 16:06:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 16:06:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 16:06:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 16:06:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 16:06:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 16:06:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:06:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:06:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:06:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 16:06:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 16:06:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 16:06:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 16:06:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 16:06:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 16:06:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 16:06:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 16:06:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 16:06:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 16:06:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 16:06:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 16:06:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 16:06:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 16:06:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 16:06:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:06:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 16:06:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 16:06:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 16:06:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:06:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:06:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 16:06:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:06:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:06:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:06:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:06:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 16:06:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:06:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 16:06:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 16:06:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:06:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 16:06:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 16:06:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 16:06:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 16:06:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 16:06:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 16:06:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 16:06:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 16:06:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 16:06:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 16:06:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:06:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:06:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 16:06:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:06:59,085 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:06:59,085 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 16:06:59,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:06:59 BoogieIcfgContainer [2020-08-22 16:06:59,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:06:59,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:06:59,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:06:59,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:06:59,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:06:57" (1/3) ... [2020-08-22 16:06:59,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393c77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:06:59, skipping insertion in model container [2020-08-22 16:06:59,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:06:57" (2/3) ... [2020-08-22 16:06:59,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393c77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:06:59, skipping insertion in model container [2020-08-22 16:06:59,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:06:59" (3/3) ... [2020-08-22 16:06:59,098 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-08-22 16:06:59,108 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:06:59,116 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:06:59,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:06:59,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:06:59,150 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:06:59,150 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:06:59,150 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:06:59,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:06:59,151 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:06:59,151 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:06:59,151 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:06:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-08-22 16:06:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 16:06:59,182 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:59,183 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] [2020-08-22 16:06:59,184 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:59,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:59,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1529441714, now seen corresponding path program 1 times [2020-08-22 16:06:59,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:59,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767871478] [2020-08-22 16:06:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:59,887 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:59,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:59,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:00,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:07:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 16:07:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 16:07:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:00,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 16:07:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:07:00,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767871478] [2020-08-22 16:07:00,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:07:00,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:07:00,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478967130] [2020-08-22 16:07:00,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:07:00,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:07:00,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:07:00,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:07:00,053 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-08-22 16:07:01,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:07:01,313 INFO L93 Difference]: Finished difference Result 358 states and 461 transitions. [2020-08-22 16:07:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:07:01,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 16:07:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:07:01,330 INFO L225 Difference]: With dead ends: 358 [2020-08-22 16:07:01,330 INFO L226 Difference]: Without dead ends: 193 [2020-08-22 16:07:01,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:07:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-08-22 16:07:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2020-08-22 16:07:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-08-22 16:07:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2020-08-22 16:07:01,439 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 52 [2020-08-22 16:07:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:07:01,439 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2020-08-22 16:07:01,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:07:01,440 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2020-08-22 16:07:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 16:07:01,449 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:07:01,449 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] [2020-08-22 16:07:01,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:07:01,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:07:01,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:07:01,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2080089166, now seen corresponding path program 1 times [2020-08-22 16:07:01,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:07:01,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973185238] [2020-08-22 16:07:01,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:07:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,792 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:07:01,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:07:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:07:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:07:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:07:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:07:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 16:07:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 16:07:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 16:07:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:07:01,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973185238] [2020-08-22 16:07:01,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:07:01,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:07:01,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080620300] [2020-08-22 16:07:01,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:07:01,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:07:01,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:07:01,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:07:01,838 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 4 states. [2020-08-22 16:07:02,238 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 16:07:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:07:03,151 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2020-08-22 16:07:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:07:03,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 16:07:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:07:03,155 INFO L225 Difference]: With dead ends: 281 [2020-08-22 16:07:03,155 INFO L226 Difference]: Without dead ends: 177 [2020-08-22 16:07:03,157 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 [2020-08-22 16:07:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-08-22 16:07:03,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2020-08-22 16:07:03,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-08-22 16:07:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2020-08-22 16:07:03,216 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 53 [2020-08-22 16:07:03,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:07:03,216 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2020-08-22 16:07:03,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:07:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2020-08-22 16:07:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-22 16:07:03,222 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:07:03,223 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] [2020-08-22 16:07:03,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:07:03,223 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:07:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:07:03,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1856420908, now seen corresponding path program 1 times [2020-08-22 16:07:03,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:07:03,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71955386] [2020-08-22 16:07:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:07:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,587 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:07:03,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:07:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:07:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:07:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:07:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:07:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 16:07:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 16:07:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 16:07:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:07:03,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71955386] [2020-08-22 16:07:03,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:07:03,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 16:07:03,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732967120] [2020-08-22 16:07:03,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:07:03,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:07:03,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:07:03,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:07:03,747 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand 8 states. [2020-08-22 16:07:04,063 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:07:04,341 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:04,594 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:04,808 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:05,492 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 16:07:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:07:07,566 INFO L93 Difference]: Finished difference Result 506 states and 621 transitions. [2020-08-22 16:07:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 16:07:07,566 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-22 16:07:07,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:07:07,572 INFO L225 Difference]: With dead ends: 506 [2020-08-22 16:07:07,572 INFO L226 Difference]: Without dead ends: 383 [2020-08-22 16:07:07,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:07:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-08-22 16:07:07,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 314. [2020-08-22 16:07:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-08-22 16:07:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 377 transitions. [2020-08-22 16:07:07,700 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 377 transitions. Word has length 58 [2020-08-22 16:07:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:07:07,700 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 377 transitions. [2020-08-22 16:07:07,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:07:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 377 transitions. [2020-08-22 16:07:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 16:07:07,702 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:07:07,702 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] [2020-08-22 16:07:07,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:07:07,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:07:07,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:07:07,703 INFO L82 PathProgramCache]: Analyzing trace with hash 425111279, now seen corresponding path program 1 times [2020-08-22 16:07:07,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:07:07,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376786429] [2020-08-22 16:07:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:07:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:07,999 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:07:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:07:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:07:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:07:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:07:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:07:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 16:07:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 16:07:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 16:07:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 16:07:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:07:08,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376786429] [2020-08-22 16:07:08,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:07:08,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 16:07:08,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919655872] [2020-08-22 16:07:08,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:07:08,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:07:08,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:07:08,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:07:08,108 INFO L87 Difference]: Start difference. First operand 314 states and 377 transitions. Second operand 8 states. [2020-08-22 16:07:08,416 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:07:09,708 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:10,044 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:10,345 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:07:10,587 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:07:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:07:11,484 INFO L93 Difference]: Finished difference Result 973 states and 1259 transitions. [2020-08-22 16:07:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 16:07:11,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-22 16:07:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:07:11,513 INFO L225 Difference]: With dead ends: 973 [2020-08-22 16:07:11,513 INFO L226 Difference]: Without dead ends: 683 [2020-08-22 16:07:11,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:07:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2020-08-22 16:07:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 609. [2020-08-22 16:07:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-08-22 16:07:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 743 transitions. [2020-08-22 16:07:11,652 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 743 transitions. Word has length 63 [2020-08-22 16:07:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:07:11,653 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 743 transitions. [2020-08-22 16:07:11,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:07:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 743 transitions. [2020-08-22 16:07:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 16:07:11,656 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:07:11,656 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, 1, 1] [2020-08-22 16:07:11,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:07:11,657 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:07:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:07:11,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1458119221, now seen corresponding path program 1 times [2020-08-22 16:07:11,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:07:11,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424708301] [2020-08-22 16:07:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:07:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,921 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:07:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:07:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:07:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:07:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:07:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:07:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 16:07:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 16:07:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 16:07:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:11,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 16:07:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-22 16:07:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:07:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:07:12,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424708301] [2020-08-22 16:07:12,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:07:12,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:07:12,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277635927] [2020-08-22 16:07:12,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:07:12,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:07:12,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:07:12,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:07:12,013 INFO L87 Difference]: Start difference. First operand 609 states and 743 transitions. Second operand 6 states. [2020-08-22 16:07:12,334 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:07:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:07:14,184 INFO L93 Difference]: Finished difference Result 1435 states and 1848 transitions. [2020-08-22 16:07:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 16:07:14,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-08-22 16:07:14,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:07:14,190 INFO L225 Difference]: With dead ends: 1435 [2020-08-22 16:07:14,190 INFO L226 Difference]: Without dead ends: 850 [2020-08-22 16:07:14,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:07:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-08-22 16:07:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 777. [2020-08-22 16:07:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2020-08-22 16:07:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 940 transitions. [2020-08-22 16:07:14,335 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 940 transitions. Word has length 67 [2020-08-22 16:07:14,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:07:14,335 INFO L479 AbstractCegarLoop]: Abstraction has 777 states and 940 transitions. [2020-08-22 16:07:14,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:07:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 940 transitions. [2020-08-22 16:07:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 16:07:14,337 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:07:14,338 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, 1, 1] [2020-08-22 16:07:14,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:07:14,338 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:07:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:07:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1610113419, now seen corresponding path program 1 times [2020-08-22 16:07:14,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:07:14,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880125084] [2020-08-22 16:07:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:07:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:07:14,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:07:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:07:14,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:07:14,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:07:14,497 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:07:14,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 16:07:14,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:07:14 BoogieIcfgContainer [2020-08-22 16:07:14,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:07:14,671 INFO L168 Benchmark]: Toolchain (without parser) took 17586.77 ms. Allocated memory was 144.2 MB in the beginning and 507.0 MB in the end (delta: 362.8 MB). Free memory was 103.9 MB in the beginning and 321.6 MB in the end (delta: -217.7 MB). Peak memory consumption was 145.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,672 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 144.2 MB. Free memory was 123.9 MB in the beginning and 123.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.31 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 103.9 MB in the beginning and 172.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,674 INFO L168 Benchmark]: Boogie Preprocessor took 91.06 ms. Allocated memory is still 203.9 MB. Free memory was 172.8 MB in the beginning and 168.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,675 INFO L168 Benchmark]: RCFGBuilder took 1241.87 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 168.1 MB in the beginning and 185.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,676 INFO L168 Benchmark]: TraceAbstraction took 15578.22 ms. Allocated memory was 232.8 MB in the beginning and 507.0 MB in the end (delta: 274.2 MB). Free memory was 185.7 MB in the beginning and 321.6 MB in the end (delta: -135.9 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:07:14,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 144.2 MB. Free memory was 123.9 MB in the beginning and 123.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.31 ms. Allocated memory was 144.2 MB in the beginning and 203.9 MB in the end (delta: 59.8 MB). Free memory was 103.9 MB in the beginning and 172.8 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.06 ms. Allocated memory is still 203.9 MB. Free memory was 172.8 MB in the beginning and 168.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.87 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 168.1 MB in the beginning and 185.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15578.22 ms. Allocated memory was 232.8 MB in the beginning and 507.0 MB in the end (delta: 274.2 MB). Free memory was 185.7 MB in the beginning and 321.6 MB in the end (delta: -135.9 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=175, \old(head)=168, \old(head)=176, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L988] int retValue_acc ; [L989] 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] [L993] 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] [L994] 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] [L995] 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] [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] 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] [L995] 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] [L995] tmp = valid_product() [L997] 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] [L999] 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] [L1000] 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] [L982] 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] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] 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] [L56] 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] [L58] 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] [L64] tmp = __VERIFIER_nondet_int() [L66] 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] [L68] 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] [L830] COND TRUE waterLevel < 2 [L831] 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] [L68] 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] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \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=1, tmp___2=0, waterLevel=2] [L96] CALL stopSystem() 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] [L343] COND FALSE !(\read(pumpRunning)) 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] [L350] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L103] 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=0, waterLevel=2] [L132] 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=0, waterLevel=2] [L139] COND FALSE !(\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=0, waterLevel=2] [L147] 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=0, waterLevel=2] [L366] int tmp ; [L367] int tmp___0 ; [L368] 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=0, waterLevel=2] [L372] 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=0, waterLevel=2] [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] 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=0, waterLevel=2] [L372] 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=0, waterLevel=2] [L372] tmp = isMethaneLevelCritical() [L374] 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=0, tmp=0, waterLevel=2] [L378] 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=0, waterLevel=2] [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] 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=0, waterLevel=2] [L378] 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=0, tmp=0, waterLevel=2] [L378] tmp___0 = getWaterLevel() [L380] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L382] 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=0, waterLevel=2] [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] 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=0, waterLevel=2] [L382] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L382] tmp___1 = isPumpRunning() [L384] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L388] 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=0, waterLevel=2] [L769] __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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 719 SDtfs, 1300 SDslu, 479 SDs, 0 SdLazy, 2649 SolverSat, 820 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=777occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 283 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 82716 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...