java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:21:10,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:21:10,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:21:10,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:21:10,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:21:10,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:21:10,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:21:10,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:21:10,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:21:10,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:21:10,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:21:10,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:21:10,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:21:10,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:21:10,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:21:10,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:21:10,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:21:10,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:21:10,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:21:10,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:21:10,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:21:10,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:21:10,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:21:10,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:21:10,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:21:10,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:21:10,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:21:10,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:21:10,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:21:10,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:21:10,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:21:10,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:21:10,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:21:10,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:21:10,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:21:10,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:21:10,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:21:10,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:21:10,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:21:10,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:21:10,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:21:10,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:21:10,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:21:10,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:21:10,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:21:10,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:21:10,742 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:21:10,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:21:10,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:21:10,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:21:10,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:21:10,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:21:10,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:21:10,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:21:10,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:21:10,744 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:21:10,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:21:10,744 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:21:10,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:21:10,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:21:10,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:21:10,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:21:10,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:21:10,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:10,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:21:10,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:21:10,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:21:10,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:21:10,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:21:10,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:21:10,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:21:11,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:21:11,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:21:11,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:21:11,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:21:11,075 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:21:11,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-15 01:21:11,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ff1c772/9e03238aa36c432e8c1b369f2b5e4cd3/FLAG5ff92d202 [2019-10-15 01:21:11,690 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:21:11,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-15 01:21:11,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ff1c772/9e03238aa36c432e8c1b369f2b5e4cd3/FLAG5ff92d202 [2019-10-15 01:21:11,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ff1c772/9e03238aa36c432e8c1b369f2b5e4cd3 [2019-10-15 01:21:12,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:21:12,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:21:12,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:12,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:21:12,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:21:12,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:11" (1/1) ... [2019-10-15 01:21:12,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e49450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12, skipping insertion in model container [2019-10-15 01:21:12,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:11" (1/1) ... [2019-10-15 01:21:12,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:21:12,068 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:21:12,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:12,560 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:21:12,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:12,703 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:21:12,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12 WrapperNode [2019-10-15 01:21:12,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:12,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:21:12,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:21:12,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:21:12,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:21:12,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:21:12,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:21:12,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:21:12,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:21:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:21:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:21:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 01:21:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 01:21:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 01:21:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 01:21:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 01:21:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 01:21:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 01:21:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 01:21:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 01:21:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 01:21:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 01:21:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 01:21:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 01:21:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 01:21:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 01:21:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:21:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 01:21:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 01:21:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:21:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 01:21:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:21:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:21:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:21:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:21:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 01:21:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 01:21:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 01:21:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 01:21:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 01:21:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 01:21:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 01:21:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 01:21:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:21:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 01:21:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 01:21:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:21:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 01:21:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:21:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 01:21:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:21:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:21:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:21:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:21:14,085 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:21:14,085 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 01:21:14,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:14 BoogieIcfgContainer [2019-10-15 01:21:14,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:21:14,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:21:14,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:21:14,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:21:14,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:21:11" (1/3) ... [2019-10-15 01:21:14,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:14, skipping insertion in model container [2019-10-15 01:21:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12" (2/3) ... [2019-10-15 01:21:14,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:14, skipping insertion in model container [2019-10-15 01:21:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:14" (3/3) ... [2019-10-15 01:21:14,096 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-10-15 01:21:14,107 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:21:14,117 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:21:14,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:21:14,160 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:21:14,161 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:21:14,161 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:21:14,161 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:21:14,161 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:21:14,162 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:21:14,162 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:21:14,162 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:21:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-15 01:21:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 01:21:14,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:14,200 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:14,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:14,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:14,209 INFO L82 PathProgramCache]: Analyzing trace with hash -389891839, now seen corresponding path program 1 times [2019-10-15 01:21:14,220 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:14,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14953423] [2019-10-15 01:21:14,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:14,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14953423] [2019-10-15 01:21:14,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:14,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:21:14,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112625117] [2019-10-15 01:21:14,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:14,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:14,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:14,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,602 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-10-15 01:21:14,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:14,680 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2019-10-15 01:21:14,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:14,683 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 01:21:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:14,711 INFO L225 Difference]: With dead ends: 306 [2019-10-15 01:21:14,711 INFO L226 Difference]: Without dead ends: 153 [2019-10-15 01:21:14,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-15 01:21:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-15 01:21:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-15 01:21:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-10-15 01:21:14,777 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2019-10-15 01:21:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:14,778 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-10-15 01:21:14,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-10-15 01:21:14,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 01:21:14,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:14,782 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:14,783 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:14,783 INFO L82 PathProgramCache]: Analyzing trace with hash 999791911, now seen corresponding path program 1 times [2019-10-15 01:21:14,784 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:14,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825828240] [2019-10-15 01:21:14,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:14,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825828240] [2019-10-15 01:21:14,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:14,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:21:14,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648207869] [2019-10-15 01:21:14,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:21:14,927 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:14,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:21:14,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:21:14,928 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2019-10-15 01:21:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:14,975 INFO L93 Difference]: Finished difference Result 255 states and 301 transitions. [2019-10-15 01:21:14,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:21:14,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 01:21:14,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:14,984 INFO L225 Difference]: With dead ends: 255 [2019-10-15 01:21:14,984 INFO L226 Difference]: Without dead ends: 144 [2019-10-15 01:21:14,988 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:21:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-15 01:21:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-15 01:21:15,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-15 01:21:15,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-10-15 01:21:15,008 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2019-10-15 01:21:15,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:15,009 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-10-15 01:21:15,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:21:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-10-15 01:21:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 01:21:15,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:15,012 INFO L380 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] [2019-10-15 01:21:15,012 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:15,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:15,012 INFO L82 PathProgramCache]: Analyzing trace with hash -314490359, now seen corresponding path program 1 times [2019-10-15 01:21:15,013 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:15,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150889737] [2019-10-15 01:21:15,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:15,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150889737] [2019-10-15 01:21:15,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:15,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:21:15,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686607933] [2019-10-15 01:21:15,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:21:15,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:15,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:21:15,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:15,180 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2019-10-15 01:21:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:15,547 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2019-10-15 01:21:15,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:15,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-15 01:21:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:15,550 INFO L225 Difference]: With dead ends: 264 [2019-10-15 01:21:15,550 INFO L226 Difference]: Without dead ends: 144 [2019-10-15 01:21:15,552 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:21:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-15 01:21:15,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-15 01:21:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-15 01:21:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-15 01:21:15,570 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2019-10-15 01:21:15,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:15,571 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-15 01:21:15,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:21:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-15 01:21:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-15 01:21:15,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:15,578 INFO L380 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] [2019-10-15 01:21:15,578 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:15,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1957039538, now seen corresponding path program 1 times [2019-10-15 01:21:15,581 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:15,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124615027] [2019-10-15 01:21:15,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:15,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124615027] [2019-10-15 01:21:15,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:15,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:21:15,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241826003] [2019-10-15 01:21:15,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:15,736 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:15,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:15,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:21:15,737 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2019-10-15 01:21:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:16,309 INFO L93 Difference]: Finished difference Result 376 states and 452 transitions. [2019-10-15 01:21:16,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:21:16,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-15 01:21:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:16,314 INFO L225 Difference]: With dead ends: 376 [2019-10-15 01:21:16,314 INFO L226 Difference]: Without dead ends: 256 [2019-10-15 01:21:16,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:21:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-15 01:21:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2019-10-15 01:21:16,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-15 01:21:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2019-10-15 01:21:16,377 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2019-10-15 01:21:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:16,377 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2019-10-15 01:21:16,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2019-10-15 01:21:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-15 01:21:16,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:16,386 INFO L380 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] [2019-10-15 01:21:16,386 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash 868877799, now seen corresponding path program 1 times [2019-10-15 01:21:16,387 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:16,389 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963622407] [2019-10-15 01:21:16,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:16,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:16,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:16,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963622407] [2019-10-15 01:21:16,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:16,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:21:16,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213230118] [2019-10-15 01:21:16,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:21:16,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:16,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:21:16,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:21:16,586 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2019-10-15 01:21:17,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:17,347 INFO L93 Difference]: Finished difference Result 771 states and 939 transitions. [2019-10-15 01:21:17,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 01:21:17,348 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-10-15 01:21:17,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:17,358 INFO L225 Difference]: With dead ends: 771 [2019-10-15 01:21:17,359 INFO L226 Difference]: Without dead ends: 557 [2019-10-15 01:21:17,361 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:21:17,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-15 01:21:17,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2019-10-15 01:21:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-15 01:21:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2019-10-15 01:21:17,441 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2019-10-15 01:21:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:17,442 INFO L462 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2019-10-15 01:21:17,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:21:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2019-10-15 01:21:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:21:17,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:17,450 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:17,450 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:17,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1619741770, now seen corresponding path program 1 times [2019-10-15 01:21:17,451 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:17,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494742776] [2019-10-15 01:21:17,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:17,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:17,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:21:17,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494742776] [2019-10-15 01:21:17,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948897470] [2019-10-15 01:21:17,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:17,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:21:17,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:18,028 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:18,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:21:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 01:21:18,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:18,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2019-10-15 01:21:18,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121198665] [2019-10-15 01:21:18,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:21:18,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:18,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:21:18,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:21:18,513 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 8 states. [2019-10-15 01:21:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:20,112 INFO L93 Difference]: Finished difference Result 1389 states and 1780 transitions. [2019-10-15 01:21:20,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:21:20,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2019-10-15 01:21:20,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:20,122 INFO L225 Difference]: With dead ends: 1389 [2019-10-15 01:21:20,123 INFO L226 Difference]: Without dead ends: 986 [2019-10-15 01:21:20,125 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:21:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2019-10-15 01:21:20,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 912. [2019-10-15 01:21:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2019-10-15 01:21:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1107 transitions. [2019-10-15 01:21:20,217 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1107 transitions. Word has length 162 [2019-10-15 01:21:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:20,217 INFO L462 AbstractCegarLoop]: Abstraction has 912 states and 1107 transitions. [2019-10-15 01:21:20,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:21:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1107 transitions. [2019-10-15 01:21:20,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:21:20,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:20,222 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:20,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:20,430 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:20,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1510920712, now seen corresponding path program 1 times [2019-10-15 01:21:20,431 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:20,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993963116] [2019-10-15 01:21:20,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:20,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:20,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:20,531 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:20,532 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993963116] [2019-10-15 01:21:20,532 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023879883] [2019-10-15 01:21:20,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:20,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:20,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:20,755 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:21,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:21,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-10-15 01:21:21,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048938475] [2019-10-15 01:21:21,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:21,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:21,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:21,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:21,147 INFO L87 Difference]: Start difference. First operand 912 states and 1107 transitions. Second operand 6 states. [2019-10-15 01:21:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:21,215 INFO L93 Difference]: Finished difference Result 1828 states and 2310 transitions. [2019-10-15 01:21:21,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:21,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2019-10-15 01:21:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:21,227 INFO L225 Difference]: With dead ends: 1828 [2019-10-15 01:21:21,227 INFO L226 Difference]: Without dead ends: 940 [2019-10-15 01:21:21,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:21,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2019-10-15 01:21:21,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 932. [2019-10-15 01:21:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2019-10-15 01:21:21,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1131 transitions. [2019-10-15 01:21:21,290 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1131 transitions. Word has length 146 [2019-10-15 01:21:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:21,291 INFO L462 AbstractCegarLoop]: Abstraction has 932 states and 1131 transitions. [2019-10-15 01:21:21,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1131 transitions. [2019-10-15 01:21:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:21:21,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:21,296 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:21,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:21,508 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1165071670, now seen corresponding path program 1 times [2019-10-15 01:21:21,509 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:21,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135546620] [2019-10-15 01:21:21,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:21,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:21,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:21,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135546620] [2019-10-15 01:21:21,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76056990] [2019-10-15 01:21:21,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:21,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:21:21,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:21,972 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:21,973 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:22,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:22,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-10-15 01:21:22,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801565040] [2019-10-15 01:21:22,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:22,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:22,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:22,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:22,393 INFO L87 Difference]: Start difference. First operand 932 states and 1131 transitions. Second operand 5 states. [2019-10-15 01:21:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:22,477 INFO L93 Difference]: Finished difference Result 1658 states and 2062 transitions. [2019-10-15 01:21:22,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:21:22,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-10-15 01:21:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:22,483 INFO L225 Difference]: With dead ends: 1658 [2019-10-15 01:21:22,483 INFO L226 Difference]: Without dead ends: 750 [2019-10-15 01:21:22,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2019-10-15 01:21:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2019-10-15 01:21:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2019-10-15 01:21:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 901 transitions. [2019-10-15 01:21:22,532 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 901 transitions. Word has length 146 [2019-10-15 01:21:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:22,533 INFO L462 AbstractCegarLoop]: Abstraction has 750 states and 901 transitions. [2019-10-15 01:21:22,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 901 transitions. [2019-10-15 01:21:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 01:21:22,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:22,537 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:22,745 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:22,746 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:22,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:22,746 INFO L82 PathProgramCache]: Analyzing trace with hash 667358703, now seen corresponding path program 1 times [2019-10-15 01:21:22,747 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:22,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831602944] [2019-10-15 01:21:22,748 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:22,748 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:22,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 01:21:22,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831602944] [2019-10-15 01:21:22,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:22,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:21:22,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418283738] [2019-10-15 01:21:22,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:21:22,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:22,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:21:22,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:21:22,940 INFO L87 Difference]: Start difference. First operand 750 states and 901 transitions. Second operand 9 states. [2019-10-15 01:21:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:23,910 INFO L93 Difference]: Finished difference Result 2009 states and 2473 transitions. [2019-10-15 01:21:23,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:21:23,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2019-10-15 01:21:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:23,920 INFO L225 Difference]: With dead ends: 2009 [2019-10-15 01:21:23,920 INFO L226 Difference]: Without dead ends: 1283 [2019-10-15 01:21:23,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:21:23,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2019-10-15 01:21:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1280. [2019-10-15 01:21:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2019-10-15 01:21:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1524 transitions. [2019-10-15 01:21:24,040 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1524 transitions. Word has length 150 [2019-10-15 01:21:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:24,044 INFO L462 AbstractCegarLoop]: Abstraction has 1280 states and 1524 transitions. [2019-10-15 01:21:24,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:21:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1524 transitions. [2019-10-15 01:21:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:21:24,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:24,048 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:24,048 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1954732917, now seen corresponding path program 1 times [2019-10-15 01:21:24,048 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:24,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586479925] [2019-10-15 01:21:24,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:24,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:24,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:21:24,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586479925] [2019-10-15 01:21:24,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837502909] [2019-10-15 01:21:24,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:24,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-15 01:21:24,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:21:24,625 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:21:26,337 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:26,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-15 01:21:26,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926276866] [2019-10-15 01:21:26,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:21:26,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:26,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:21:26,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:21:26,339 INFO L87 Difference]: Start difference. First operand 1280 states and 1524 transitions. Second operand 8 states. [2019-10-15 01:21:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:26,780 INFO L93 Difference]: Finished difference Result 2373 states and 2855 transitions. [2019-10-15 01:21:26,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:21:26,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2019-10-15 01:21:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:26,788 INFO L225 Difference]: With dead ends: 2373 [2019-10-15 01:21:26,789 INFO L226 Difference]: Without dead ends: 1245 [2019-10-15 01:21:26,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 289 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:21:26,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2019-10-15 01:21:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1242. [2019-10-15 01:21:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2019-10-15 01:21:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1472 transitions. [2019-10-15 01:21:26,861 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1472 transitions. Word has length 154 [2019-10-15 01:21:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:26,861 INFO L462 AbstractCegarLoop]: Abstraction has 1242 states and 1472 transitions. [2019-10-15 01:21:26,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:21:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1472 transitions. [2019-10-15 01:21:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:21:26,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:26,864 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:27,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:27,074 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:27,075 INFO L82 PathProgramCache]: Analyzing trace with hash 392365267, now seen corresponding path program 2 times [2019-10-15 01:21:27,075 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:27,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171385962] [2019-10-15 01:21:27,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:21:27,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171385962] [2019-10-15 01:21:27,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:27,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:21:27,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082831664] [2019-10-15 01:21:27,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:27,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:27,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:27,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:27,192 INFO L87 Difference]: Start difference. First operand 1242 states and 1472 transitions. Second operand 6 states. [2019-10-15 01:21:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:27,494 INFO L93 Difference]: Finished difference Result 1267 states and 1501 transitions. [2019-10-15 01:21:27,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:21:27,495 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2019-10-15 01:21:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:27,503 INFO L225 Difference]: With dead ends: 1267 [2019-10-15 01:21:27,503 INFO L226 Difference]: Without dead ends: 1264 [2019-10-15 01:21:27,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:21:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2019-10-15 01:21:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1242. [2019-10-15 01:21:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2019-10-15 01:21:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1464 transitions. [2019-10-15 01:21:27,637 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1464 transitions. Word has length 154 [2019-10-15 01:21:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:27,638 INFO L462 AbstractCegarLoop]: Abstraction has 1242 states and 1464 transitions. [2019-10-15 01:21:27,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1464 transitions. [2019-10-15 01:21:27,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 01:21:27,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:27,643 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:27,643 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:27,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:27,643 INFO L82 PathProgramCache]: Analyzing trace with hash 656308020, now seen corresponding path program 1 times [2019-10-15 01:21:27,644 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:27,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048462481] [2019-10-15 01:21:27,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 01:21:27,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048462481] [2019-10-15 01:21:27,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068824232] [2019-10-15 01:21:27,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:28,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:28,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:28,205 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 01:21:28,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1091586560] [2019-10-15 01:21:28,594 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 173 [2019-10-15 01:21:28,649 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:21:28,649 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:21:28,743 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:21:28,745 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-15 01:21:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:28,750 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:21:28,868 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:21:28,868 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:21:28,876 INFO L553 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-10-15 01:21:28,876 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:21:28,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:21:28,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 9, 9] total 17 [2019-10-15 01:21:28,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652208764] [2019-10-15 01:21:28,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:28,879 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:28,880 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:21:28,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:28,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:28,880 INFO L87 Difference]: Start difference. First operand 1242 states and 1464 transitions. Second operand 2 states. [2019-10-15 01:21:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:28,896 INFO L93 Difference]: Finished difference Result 1242 states and 1464 transitions. [2019-10-15 01:21:28,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:28,897 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-15 01:21:28,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:28,897 INFO L225 Difference]: With dead ends: 1242 [2019-10-15 01:21:28,897 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:21:28,901 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:21:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:21:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:21:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:21:28,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-10-15 01:21:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:28,902 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:21:28,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:21:28,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:21:29,108 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:29,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:21:29,677 INFO L443 ceAbstractionStarter]: For program point L635(lines 612 636) no Hoare annotation was computed. [2019-10-15 01:21:29,677 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 588 643) no Hoare annotation was computed. [2019-10-15 01:21:29,677 INFO L443 ceAbstractionStarter]: For program point L619(lines 619 623) no Hoare annotation was computed. [2019-10-15 01:21:29,677 INFO L443 ceAbstractionStarter]: For program point L619-1(lines 619 623) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 588 643) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point L614(line 614) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point L613-2(lines 613 634) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 588 643) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point L671(line 671) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point L670-2(lines 670 695) no Hoare annotation was computed. [2019-10-15 01:21:29,678 INFO L443 ceAbstractionStarter]: For program point L696(lines 669 697) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 644 703) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point L689(line 689) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point L689-1(line 689) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 644 703) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 644 703) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point L676(lines 676 680) no Hoare annotation was computed. [2019-10-15 01:21:29,679 INFO L443 ceAbstractionStarter]: For program point L676-1(lines 676 680) no Hoare annotation was computed. [2019-10-15 01:21:29,680 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2019-10-15 01:21:29,680 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2019-10-15 01:21:29,680 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2019-10-15 01:21:29,680 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2019-10-15 01:21:29,680 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2019-10-15 01:21:29,681 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2019-10-15 01:21:29,681 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2019-10-15 01:21:29,681 INFO L446 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: true [2019-10-15 01:21:29,681 INFO L443 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2019-10-15 01:21:29,681 INFO L446 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: true [2019-10-15 01:21:29,681 INFO L443 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2019-10-15 01:21:29,681 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2019-10-15 01:21:29,681 INFO L443 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2019-10-15 01:21:29,682 INFO L446 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2019-10-15 01:21:29,682 INFO L443 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2019-10-15 01:21:29,682 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: true [2019-10-15 01:21:29,682 INFO L446 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: true [2019-10-15 01:21:29,682 INFO L446 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: true [2019-10-15 01:21:29,682 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2019-10-15 01:21:29,682 INFO L443 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2019-10-15 01:21:29,683 INFO L443 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2019-10-15 01:21:29,683 INFO L443 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2019-10-15 01:21:29,683 INFO L446 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2019-10-15 01:21:29,683 INFO L446 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: true [2019-10-15 01:21:29,683 INFO L446 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: true [2019-10-15 01:21:29,683 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2019-10-15 01:21:29,683 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 933 956) no Hoare annotation was computed. [2019-10-15 01:21:29,683 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 933 956) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 933 956) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L951(line 951) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L950(line 950) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L949(line 949) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L948(line 948) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L947(line 947) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L946(line 946) no Hoare annotation was computed. [2019-10-15 01:21:29,684 INFO L443 ceAbstractionStarter]: For program point L945(line 945) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L944(line 944) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L943(line 943) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L942(line 942) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L941(line 941) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L940(line 940) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L939(line 939) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L443 ceAbstractionStarter]: For program point L938(line 938) no Hoare annotation was computed. [2019-10-15 01:21:29,685 INFO L446 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: true [2019-10-15 01:21:29,686 INFO L443 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2019-10-15 01:21:29,686 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: true [2019-10-15 01:21:29,686 INFO L446 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: true [2019-10-15 01:21:29,686 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2019-10-15 01:21:29,686 INFO L446 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2019-10-15 01:21:29,686 INFO L443 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2019-10-15 01:21:29,686 INFO L446 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: true [2019-10-15 01:21:29,686 INFO L443 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2019-10-15 01:21:29,686 INFO L443 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2019-10-15 01:21:29,687 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2019-10-15 01:21:29,687 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2019-10-15 01:21:29,687 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2019-10-15 01:21:29,687 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2019-10-15 01:21:29,687 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2019-10-15 01:21:29,687 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2019-10-15 01:21:29,687 INFO L446 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L282(lines 282 290) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L282-2(lines 282 290) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 263 298) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L270(lines 270 278) no Hoare annotation was computed. [2019-10-15 01:21:29,688 INFO L443 ceAbstractionStarter]: For program point L270-2(lines 270 278) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 263 298) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point L293(line 293) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point L293-1(line 293) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 263 298) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 542 587) no Hoare annotation was computed. [2019-10-15 01:21:29,689 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 542 587) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 542 587) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 855 900) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point L875(lines 875 882) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 855 900) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 855 900) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point L869(lines 869 889) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L443 ceAbstractionStarter]: For program point L869-1(lines 869 889) no Hoare annotation was computed. [2019-10-15 01:21:29,690 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: true [2019-10-15 01:21:29,691 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2019-10-15 01:21:29,691 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2019-10-15 01:21:29,691 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2019-10-15 01:21:29,691 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2019-10-15 01:21:29,691 INFO L446 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2019-10-15 01:21:29,691 INFO L443 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2019-10-15 01:21:29,691 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2019-10-15 01:21:29,691 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: true [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L443 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2019-10-15 01:21:29,692 INFO L446 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: true [2019-10-15 01:21:29,693 INFO L443 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2019-10-15 01:21:29,693 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2019-10-15 01:21:29,693 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2019-10-15 01:21:29,693 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: true [2019-10-15 01:21:29,693 INFO L446 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: true [2019-10-15 01:21:29,693 INFO L443 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2019-10-15 01:21:29,693 INFO L446 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: true [2019-10-15 01:21:29,693 INFO L446 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: true [2019-10-15 01:21:29,693 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2019-10-15 01:21:29,694 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2019-10-15 01:21:29,694 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2019-10-15 01:21:29,694 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: true [2019-10-15 01:21:29,694 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2019-10-15 01:21:29,694 INFO L446 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: true [2019-10-15 01:21:29,694 INFO L443 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2019-10-15 01:21:29,694 INFO L446 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: true [2019-10-15 01:21:29,694 INFO L443 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2019-10-15 01:21:29,694 INFO L443 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2019-10-15 01:21:29,695 INFO L446 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: true [2019-10-15 01:21:29,695 INFO L443 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2019-10-15 01:21:29,695 INFO L443 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2019-10-15 01:21:29,695 INFO L446 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: true [2019-10-15 01:21:29,695 INFO L446 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: true [2019-10-15 01:21:29,695 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2019-10-15 01:21:29,695 INFO L443 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2019-10-15 01:21:29,696 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2019-10-15 01:21:29,696 INFO L443 ceAbstractionStarter]: For program point L829(lines 829 836) no Hoare annotation was computed. [2019-10-15 01:21:29,696 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 809 854) no Hoare annotation was computed. [2019-10-15 01:21:29,696 INFO L443 ceAbstractionStarter]: For program point L823(lines 823 843) no Hoare annotation was computed. [2019-10-15 01:21:29,696 INFO L443 ceAbstractionStarter]: For program point L823-1(lines 823 843) no Hoare annotation was computed. [2019-10-15 01:21:29,697 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 809 854) no Hoare annotation was computed. [2019-10-15 01:21:29,697 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 809 854) no Hoare annotation was computed. [2019-10-15 01:21:29,697 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: true [2019-10-15 01:21:29,697 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2019-10-15 01:21:29,697 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2019-10-15 01:21:29,697 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point L462(lines 462 470) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point L462-2(lines 462 470) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 454 476) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 454 476) no Hoare annotation was computed. [2019-10-15 01:21:29,698 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 454 476) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 53 62) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 53 62) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 53 62) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point L735(lines 735 751) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 706 808) no Hoare annotation was computed. [2019-10-15 01:21:29,699 INFO L443 ceAbstractionStarter]: For program point L795(lines 795 802) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L756(lines 755 775) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L787(line 787) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L787-1(line 787) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L752(lines 752 793) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 706 808) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L771(line 771) no Hoare annotation was computed. [2019-10-15 01:21:29,700 INFO L443 ceAbstractionStarter]: For program point L771-1(line 771) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point L730(lines 730 734) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point L794(lines 794 805) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point L757(lines 757 761) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 706 808) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point L755-2(lines 755 775) no Hoare annotation was computed. [2019-10-15 01:21:29,701 INFO L443 ceAbstractionStarter]: For program point L776(lines 754 777) no Hoare annotation was computed. [2019-10-15 01:21:29,702 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,702 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-15 01:21:29,702 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,702 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2019-10-15 01:21:29,702 INFO L446 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: true [2019-10-15 01:21:29,702 INFO L443 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2019-10-15 01:21:29,703 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2019-10-15 01:21:29,703 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: true [2019-10-15 01:21:29,703 INFO L446 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: true [2019-10-15 01:21:29,703 INFO L443 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2019-10-15 01:21:29,703 INFO L443 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2019-10-15 01:21:29,703 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2019-10-15 01:21:29,704 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2019-10-15 01:21:29,704 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2019-10-15 01:21:29,704 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2019-10-15 01:21:29,704 INFO L446 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2019-10-15 01:21:29,704 INFO L443 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2019-10-15 01:21:29,705 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2019-10-15 01:21:29,705 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2019-10-15 01:21:29,705 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2019-10-15 01:21:29,705 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: true [2019-10-15 01:21:29,705 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2019-10-15 01:21:29,706 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2019-10-15 01:21:29,707 INFO L446 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: true [2019-10-15 01:21:29,707 INFO L446 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: true [2019-10-15 01:21:29,707 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: true [2019-10-15 01:21:29,707 INFO L446 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: true [2019-10-15 01:21:29,707 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2019-10-15 01:21:29,707 INFO L443 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2019-10-15 01:21:29,707 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2019-10-15 01:21:29,708 INFO L446 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2019-10-15 01:21:29,708 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2019-10-15 01:21:29,708 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2019-10-15 01:21:29,708 INFO L443 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2019-10-15 01:21:29,708 INFO L443 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2019-10-15 01:21:29,709 INFO L446 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2019-10-15 01:21:29,709 INFO L443 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2019-10-15 01:21:29,709 INFO L446 ceAbstractionStarter]: At program point L913-2(lines 913 927) the Hoare annotation is: true [2019-10-15 01:21:29,709 INFO L446 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2019-10-15 01:21:29,709 INFO L443 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2019-10-15 01:21:29,710 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: true [2019-10-15 01:21:29,710 INFO L443 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2019-10-15 01:21:29,710 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2019-10-15 01:21:29,710 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2019-10-15 01:21:29,710 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2019-10-15 01:21:29,710 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,710 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:21:29,710 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:21:29,711 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,711 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: true [2019-10-15 01:21:29,711 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2019-10-15 01:21:29,711 INFO L446 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: true [2019-10-15 01:21:29,711 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2019-10-15 01:21:29,711 INFO L446 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: true [2019-10-15 01:21:29,711 INFO L446 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: true [2019-10-15 01:21:29,711 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L446 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: true [2019-10-15 01:21:29,712 INFO L443 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L443 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L443 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: true [2019-10-15 01:21:29,712 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:29,712 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-15 01:21:29,713 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-15 01:21:29,713 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:29,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:21:29 BoogieIcfgContainer [2019-10-15 01:21:29,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:21:29,726 INFO L168 Benchmark]: Toolchain (without parser) took 17723.67 ms. Allocated memory was 136.8 MB in the beginning and 574.6 MB in the end (delta: 437.8 MB). Free memory was 100.1 MB in the beginning and 418.3 MB in the end (delta: -318.3 MB). Peak memory consumption was 368.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,727 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.40 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 168.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,728 INFO L168 Benchmark]: Boogie Preprocessor took 97.98 ms. Allocated memory is still 200.8 MB. Free memory was 168.4 MB in the beginning and 163.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,729 INFO L168 Benchmark]: RCFGBuilder took 1284.75 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 193.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,730 INFO L168 Benchmark]: TraceAbstraction took 15635.03 ms. Allocated memory was 230.7 MB in the beginning and 574.6 MB in the end (delta: 343.9 MB). Free memory was 193.1 MB in the beginning and 418.3 MB in the end (delta: -225.3 MB). Peak memory consumption was 367.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,735 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.40 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 168.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.98 ms. Allocated memory is still 200.8 MB. Free memory was 168.4 MB in the beginning and 163.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1284.75 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 163.5 MB in the beginning and 193.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15635.03 ms. Allocated memory was 230.7 MB in the beginning and 574.6 MB in the end (delta: 343.9 MB). Free memory was 193.1 MB in the beginning and 418.3 MB in the end (delta: -225.3 MB). Peak memory consumption was 367.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 252 locations, 1 error locations. Result: SAFE, OverallTime: 15.5s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 2230 SDtfs, 1822 SDslu, 6053 SDs, 0 SdLazy, 2944 SolverSat, 663 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1518 GetRequests, 1389 SyntacticMatches, 17 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1280occurred 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: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 138 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 2715 PreInvPairs, 2716 NumberOfFragments, 75 HoareAnnotationTreeSize, 2715 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 69 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 2160 NumberOfCodeBlocks, 2160 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2918 ConstructedInterpolants, 0 QuantifiedInterpolants, 633359 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4429 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 541/628 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 157, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8245614035087719, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...