/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:25:36,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:25:36,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:25:36,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:25:36,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:25:36,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:25:36,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:25:36,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:25:36,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:25:36,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:25:36,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:25:36,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:25:36,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:25:36,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:25:36,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:25:36,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:25:36,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:25:36,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:25:36,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:25:36,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:25:36,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:25:36,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:25:36,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:25:36,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:25:36,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:25:36,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:25:36,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:25:36,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:25:36,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:25:36,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:25:36,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:25:36,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:25:36,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:25:36,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:25:36,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:25:36,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:25:36,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:25:36,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:25:36,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:25:36,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:25:36,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:25:36,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:25:36,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:25:36,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:25:36,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:25:36,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:25:36,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:25:36,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:25:36,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:25:36,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:25:36,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:25:36,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:25:36,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:25:36,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:25:36,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:25:36,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:25:36,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:25:36,781 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:25:36,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:25:36,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:25:36,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:25:36,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:25:36,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:25:36,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:25:36,782 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:25:37,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:25:37,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:25:37,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:25:37,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:25:37,099 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:25:37,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-07 12:25:37,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb89c5a0/7c98637f23b64c59b498fb8db441a721/FLAGd4bc99055 [2020-07-07 12:25:37,686 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:25:37,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-07-07 12:25:37,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb89c5a0/7c98637f23b64c59b498fb8db441a721/FLAGd4bc99055 [2020-07-07 12:25:37,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcb89c5a0/7c98637f23b64c59b498fb8db441a721 [2020-07-07 12:25:37,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:25:37,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:25:37,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:25:37,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:25:38,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:25:38,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:25:37" (1/1) ... [2020-07-07 12:25:38,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcd9b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38, skipping insertion in model container [2020-07-07 12:25:38,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:25:37" (1/1) ... [2020-07-07 12:25:38,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:25:38,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:25:38,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:25:38,524 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:25:38,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:25:38,654 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:25:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38 WrapperNode [2020-07-07 12:25:38,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:25:38,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:25:38,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:25:38,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:25:38,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (1/1) ... [2020-07-07 12:25:38,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:25:38,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:25:38,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:25:38,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:25:38,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (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 [2020-07-07 12:25:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:25:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:25:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:25:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-07 12:25:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:25:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:25:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:25:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:25:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:25:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:25:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:25:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:25:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:25:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:25:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:25:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:25:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:25:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:25:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:25:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:25:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:25:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:25:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:25:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:25:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:25:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:25:39,967 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:25:39,967 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:25:39,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:25:39 BoogieIcfgContainer [2020-07-07 12:25:39,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:25:39,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:25:39,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:25:39,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:25:39,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:25:37" (1/3) ... [2020-07-07 12:25:39,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fb3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:25:39, skipping insertion in model container [2020-07-07 12:25:39,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:25:38" (2/3) ... [2020-07-07 12:25:39,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fb3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:25:39, skipping insertion in model container [2020-07-07 12:25:39,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:25:39" (3/3) ... [2020-07-07 12:25:39,982 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-07-07 12:25:39,993 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:25:40,002 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:25:40,016 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:25:40,036 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:25:40,036 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:25:40,036 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:25:40,036 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:25:40,037 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:25:40,037 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:25:40,037 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:25:40,037 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:25:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-07-07 12:25:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 12:25:40,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:40,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:40,082 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:40,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:40,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-07-07 12:25:40,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:40,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020838203] [2020-07-07 12:25:40,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:40,893 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:41,062 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:41,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020838203] [2020-07-07 12:25:41,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:41,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:25:41,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038893083] [2020-07-07 12:25:41,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:25:41,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:41,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:25:41,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:25:41,095 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-07-07 12:25:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:42,594 INFO L93 Difference]: Finished difference Result 498 states and 590 transitions. [2020-07-07 12:25:42,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:25:42,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-07 12:25:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:42,633 INFO L225 Difference]: With dead ends: 498 [2020-07-07 12:25:42,634 INFO L226 Difference]: Without dead ends: 307 [2020-07-07 12:25:42,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:25:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-07-07 12:25:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-07-07 12:25:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-07 12:25:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2020-07-07 12:25:42,792 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 142 [2020-07-07 12:25:42,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:42,793 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2020-07-07 12:25:42,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:25:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2020-07-07 12:25:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 12:25:42,797 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:42,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:42,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:25:42,798 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:42,798 INFO L82 PathProgramCache]: Analyzing trace with hash -631468838, now seen corresponding path program 1 times [2020-07-07 12:25:42,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:42,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911649428] [2020-07-07 12:25:42,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,188 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:43,261 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:43,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911649428] [2020-07-07 12:25:43,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:43,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:25:43,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530661677] [2020-07-07 12:25:43,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:25:43,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:43,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:25:43,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:25:43,265 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand 4 states. [2020-07-07 12:25:43,943 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:44,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:44,978 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2020-07-07 12:25:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:25:44,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-07 12:25:44,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:44,984 INFO L225 Difference]: With dead ends: 411 [2020-07-07 12:25:44,984 INFO L226 Difference]: Without dead ends: 290 [2020-07-07 12:25:44,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:25:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-07-07 12:25:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-07-07 12:25:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-07 12:25:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-07-07 12:25:45,074 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 143 [2020-07-07 12:25:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:45,075 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-07-07 12:25:45,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:25:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-07-07 12:25:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-07 12:25:45,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:45,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:45,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:25:45,078 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:45,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:45,079 INFO L82 PathProgramCache]: Analyzing trace with hash -604508154, now seen corresponding path program 1 times [2020-07-07 12:25:45,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:45,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866215963] [2020-07-07 12:25:45,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,449 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:45,578 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:45,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866215963] [2020-07-07 12:25:45,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:45,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:25:45,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314660303] [2020-07-07 12:25:45,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:25:45,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:45,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:25:45,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:25:45,581 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 10 states. [2020-07-07 12:25:46,089 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:46,417 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:46,672 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:25:46,957 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:47,216 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:47,478 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:49,169 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2020-07-07 12:25:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:25:49,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-07-07 12:25:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:49,173 INFO L225 Difference]: With dead ends: 457 [2020-07-07 12:25:49,173 INFO L226 Difference]: Without dead ends: 312 [2020-07-07 12:25:49,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-07-07 12:25:49,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-07-07 12:25:49,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-07-07 12:25:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-07 12:25:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 273 transitions. [2020-07-07 12:25:49,252 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 273 transitions. Word has length 156 [2020-07-07 12:25:49,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:49,253 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 273 transitions. [2020-07-07 12:25:49,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:25:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 273 transitions. [2020-07-07 12:25:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-07 12:25:49,255 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:49,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:49,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:25:49,256 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:49,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:49,256 INFO L82 PathProgramCache]: Analyzing trace with hash 561125926, now seen corresponding path program 1 times [2020-07-07 12:25:49,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:49,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906441289] [2020-07-07 12:25:49,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,590 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:49,752 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:49,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906441289] [2020-07-07 12:25:49,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:49,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 12:25:49,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713040064] [2020-07-07 12:25:49,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 12:25:49,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:49,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 12:25:49,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:25:49,754 INFO L87 Difference]: Start difference. First operand 255 states and 273 transitions. Second operand 7 states. [2020-07-07 12:25:50,222 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:51,799 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:52,718 INFO L93 Difference]: Finished difference Result 637 states and 753 transitions. [2020-07-07 12:25:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:25:52,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-07-07 12:25:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:52,726 INFO L225 Difference]: With dead ends: 637 [2020-07-07 12:25:52,727 INFO L226 Difference]: Without dead ends: 492 [2020-07-07 12:25:52,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:25:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-07-07 12:25:52,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 365. [2020-07-07 12:25:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-07-07 12:25:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 392 transitions. [2020-07-07 12:25:52,868 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 392 transitions. Word has length 169 [2020-07-07 12:25:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:52,868 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 392 transitions. [2020-07-07 12:25:52,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 12:25:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 392 transitions. [2020-07-07 12:25:52,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-07 12:25:52,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:52,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:52,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:25:52,872 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:52,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:52,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1803845393, now seen corresponding path program 1 times [2020-07-07 12:25:52,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:52,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929161021] [2020-07-07 12:25:52,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,197 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:53,416 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:53,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929161021] [2020-07-07 12:25:53,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:53,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:25:53,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575478751] [2020-07-07 12:25:53,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:25:53,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:53,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:25:53,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:25:53,420 INFO L87 Difference]: Start difference. First operand 365 states and 392 transitions. Second operand 10 states. [2020-07-07 12:25:54,165 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:55,917 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:56,202 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:56,451 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:56,705 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:56,925 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:57,145 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:57,369 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:57,733 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:59,336 INFO L93 Difference]: Finished difference Result 1064 states and 1283 transitions. [2020-07-07 12:25:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 12:25:59,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-07-07 12:25:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:59,343 INFO L225 Difference]: With dead ends: 1064 [2020-07-07 12:25:59,343 INFO L226 Difference]: Without dead ends: 809 [2020-07-07 12:25:59,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-07 12:25:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-07-07 12:25:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 583. [2020-07-07 12:25:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-07-07 12:25:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 632 transitions. [2020-07-07 12:25:59,598 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 632 transitions. Word has length 193 [2020-07-07 12:25:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:59,598 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 632 transitions. [2020-07-07 12:25:59,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:25:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 632 transitions. [2020-07-07 12:25:59,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-07 12:25:59,602 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:59,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:25:59,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:25:59,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:59,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:59,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2050601923, now seen corresponding path program 1 times [2020-07-07 12:25:59,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:59,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936569471] [2020-07-07 12:25:59,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:59,953 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:26:00,130 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:26:00,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936569471] [2020-07-07 12:26:00,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:26:00,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:26:00,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904212029] [2020-07-07 12:26:00,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:26:00,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:26:00,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:26:00,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:26:00,133 INFO L87 Difference]: Start difference. First operand 583 states and 632 transitions. Second operand 11 states. [2020-07-07 12:26:00,603 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:26:02,029 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:02,239 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:26:02,491 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:26:02,727 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:03,011 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:03,277 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:26:03,520 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:03,800 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:05,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:26:05,462 INFO L93 Difference]: Finished difference Result 944 states and 1166 transitions. [2020-07-07 12:26:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 12:26:05,462 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2020-07-07 12:26:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:26:05,471 INFO L225 Difference]: With dead ends: 944 [2020-07-07 12:26:05,472 INFO L226 Difference]: Without dead ends: 941 [2020-07-07 12:26:05,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-07-07 12:26:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-07-07 12:26:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 583. [2020-07-07 12:26:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-07-07 12:26:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 631 transitions. [2020-07-07 12:26:05,708 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 631 transitions. Word has length 198 [2020-07-07 12:26:05,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:26:05,709 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 631 transitions. [2020-07-07 12:26:05,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:26:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 631 transitions. [2020-07-07 12:26:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-07 12:26:05,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:26:05,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:26:05,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:26:05,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:26:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:26:05,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1064023592, now seen corresponding path program 1 times [2020-07-07 12:26:05,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:26:05,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577258340] [2020-07-07 12:26:05,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:26:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:05,985 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:26:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:26:06,224 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:26:06,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577258340] [2020-07-07 12:26:06,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:26:06,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:26:06,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378629670] [2020-07-07 12:26:06,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:26:06,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:26:06,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:26:06,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:26:06,227 INFO L87 Difference]: Start difference. First operand 583 states and 631 transitions. Second operand 11 states. [2020-07-07 12:26:07,442 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:07,682 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:26:07,919 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:26:08,149 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:08,387 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:26:08,605 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:26:10,187 INFO L93 Difference]: Finished difference Result 1424 states and 1717 transitions. [2020-07-07 12:26:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 12:26:10,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-07-07 12:26:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:26:10,195 INFO L225 Difference]: With dead ends: 1424 [2020-07-07 12:26:10,196 INFO L226 Difference]: Without dead ends: 951 [2020-07-07 12:26:10,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-07-07 12:26:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2020-07-07 12:26:10,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 599. [2020-07-07 12:26:10,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-07-07 12:26:10,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 647 transitions. [2020-07-07 12:26:10,416 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 647 transitions. Word has length 199 [2020-07-07 12:26:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:26:10,416 INFO L479 AbstractCegarLoop]: Abstraction has 599 states and 647 transitions. [2020-07-07 12:26:10,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:26:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 647 transitions. [2020-07-07 12:26:10,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-07 12:26:10,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:26:10,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:26:10,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:26:10,420 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:26:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:26:10,420 INFO L82 PathProgramCache]: Analyzing trace with hash -2037893768, now seen corresponding path program 1 times [2020-07-07 12:26:10,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:26:10,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067738065] [2020-07-07 12:26:10,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:26:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,720 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:26:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:26:10,921 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:26:10,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067738065] [2020-07-07 12:26:10,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:26:10,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:26:10,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912922276] [2020-07-07 12:26:10,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:26:10,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:26:10,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:26:10,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:26:10,924 INFO L87 Difference]: Start difference. First operand 599 states and 647 transitions. Second operand 14 states. [2020-07-07 12:26:11,465 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:26:11,700 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:26:11,928 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:12,149 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:26:12,378 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:13,172 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:13,402 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:26:13,661 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:13,936 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:26:14,174 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:26:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:26:16,021 INFO L93 Difference]: Finished difference Result 1462 states and 1780 transitions. [2020-07-07 12:26:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 12:26:16,025 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2020-07-07 12:26:16,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:26:16,031 INFO L225 Difference]: With dead ends: 1462 [2020-07-07 12:26:16,032 INFO L226 Difference]: Without dead ends: 973 [2020-07-07 12:26:16,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-07 12:26:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-07-07 12:26:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 611. [2020-07-07 12:26:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-07 12:26:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 659 transitions. [2020-07-07 12:26:16,245 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 659 transitions. Word has length 199 [2020-07-07 12:26:16,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:26:16,245 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 659 transitions. [2020-07-07 12:26:16,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:26:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 659 transitions. [2020-07-07 12:26:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-07 12:26:16,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:26:16,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:26:16,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:26:16,249 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:26:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:26:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash 616779547, now seen corresponding path program 1 times [2020-07-07 12:26:16,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:26:16,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934557337] [2020-07-07 12:26:16,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:26:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,515 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:26:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:26:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:26:16,697 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:26:16,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934557337] [2020-07-07 12:26:16,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:26:16,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:26:16,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405550208] [2020-07-07 12:26:16,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:26:16,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:26:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:26:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:26:16,700 INFO L87 Difference]: Start difference. First operand 611 states and 659 transitions. Second operand 8 states. [2020-07-07 12:26:17,150 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:26:17,664 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:26:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:26:20,872 INFO L93 Difference]: Finished difference Result 2131 states and 2675 transitions. [2020-07-07 12:26:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 12:26:20,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-07-07 12:26:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:26:20,883 INFO L225 Difference]: With dead ends: 2131 [2020-07-07 12:26:20,883 INFO L226 Difference]: Without dead ends: 1630 [2020-07-07 12:26:20,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-07-07 12:26:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2020-07-07 12:26:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1053. [2020-07-07 12:26:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-07-07 12:26:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1175 transitions. [2020-07-07 12:26:21,398 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1175 transitions. Word has length 199 [2020-07-07 12:26:21,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:26:21,399 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1175 transitions. [2020-07-07 12:26:21,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:26:21,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1175 transitions. [2020-07-07 12:26:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-07 12:26:21,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:26:21,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:26:21,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:26:21,407 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:26:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:26:21,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1803221553, now seen corresponding path program 1 times [2020-07-07 12:26:21,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:26:21,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991421329] [2020-07-07 12:26:21,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:26:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:26:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:26:21,822 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:26:21,823 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:26:21,823 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:26:21,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:26:21,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:26:21 BoogieIcfgContainer [2020-07-07 12:26:21,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:26:21,878 INFO L168 Benchmark]: Toolchain (without parser) took 43882.96 ms. Allocated memory was 144.7 MB in the beginning and 792.7 MB in the end (delta: 648.0 MB). Free memory was 102.0 MB in the beginning and 239.8 MB in the end (delta: -137.8 MB). Peak memory consumption was 510.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,885 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 144.7 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.26 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 169.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,887 INFO L168 Benchmark]: Boogie Preprocessor took 89.84 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,892 INFO L168 Benchmark]: RCFGBuilder took 1228.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 172.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,894 INFO L168 Benchmark]: TraceAbstraction took 41900.98 ms. Allocated memory was 235.9 MB in the beginning and 792.7 MB in the end (delta: 556.8 MB). Free memory was 172.0 MB in the beginning and 239.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 489.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:26:21,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 144.7 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.26 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 169.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.84 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.22 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 172.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41900.98 ms. Allocated memory was 235.9 MB in the beginning and 792.7 MB in the end (delta: 556.8 MB). Free memory was 172.0 MB in the beginning and 239.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 489.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] int tmp ; [L263] FCALL select_helpers() [L264] FCALL select_features() [L265] CALL, EXPR valid_product() [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L265] RET, EXPR valid_product() [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) [L269] FCALL setup() [L270] CALL runTest() [L249] CALL test() [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 [L327] COND TRUE 1 [L329] COND TRUE splverifierCounter < 4 [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) [L339] CALL waterRise() [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 [L339] RET waterRise() [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) [L349] CALL changeMethaneLevel() [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 [L349] RET changeMethaneLevel() [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND TRUE \read(tmp___2) [L359] CALL startSystem() [L595] systemActive = 1 [L359] RET startSystem() [L372] CALL timeShift() [L402] COND FALSE !(\read(pumpRunning)) [L409] COND TRUE \read(systemActive) [L411] CALL processEnvironment() [L457] int tmp ; [L460] COND FALSE !(\read(pumpRunning)) [L475] CALL processEnvironment__wrappee__highWaterSensor() [L431] int tmp ; [L434] COND TRUE ! pumpRunning [L436] CALL, EXPR isHighWaterLevel() [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; [L560] CALL, EXPR isHighWaterSensorDry() [L156] int retValue_acc ; [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); [L560] RET, EXPR isHighWaterSensorDry() [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); [L436] RET, EXPR isHighWaterLevel() [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) [L440] CALL activatePump() [L485] pumpRunning = 1 [L440] RET activatePump() [L475] RET processEnvironment__wrappee__highWaterSensor() [L411] RET processEnvironment() [L417] CALL __utac_acc__Specification1_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR isMethaneLevelCritical() [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); [L49] RET, EXPR isMethaneLevelCritical() [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L53] CALL, EXPR isPumpRunning() [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L388] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 641 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2276 SDtfs, 5324 SDslu, 4279 SDs, 0 SdLazy, 9360 SolverSat, 1586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 256 SyntacticMatches, 3 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1053occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2136 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...