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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:18:42,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:18:42,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:18:42,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:18:42,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:18:42,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:18:42,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:18:42,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:18:42,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:18:42,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:18:42,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:18:42,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:18:42,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:18:42,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:18:42,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:18:42,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:18:42,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:18:42,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:18:42,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:18:42,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:18:42,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:18:42,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:18:42,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:18:42,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:18:42,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:18:42,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:18:42,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:18:42,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:18:42,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:18:42,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:18:42,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:18:42,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:18:42,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:18:42,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:18:42,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:18:42,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:18:42,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:18:42,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:18:42,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:18:42,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:18:42,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:18:42,611 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 [2019-10-07 15:18:42,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:18:42,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:18:42,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:18:42,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:18:42,639 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:18:42,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:18:42,639 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:18:42,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:18:42,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:18:42,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:18:42,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:18:42,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:18:42,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:18:42,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:18:42,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:18:42,641 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:18:42,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:18:42,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:18:42,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:18:42,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:18:42,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:18:42,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:18:42,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:18:42,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:18:42,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:18:42,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:18:42,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:18:42,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:18:42,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:18:42,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:18:42,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:18:42,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:18:42,969 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:18:42,969 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:18:42,970 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2019-10-07 15:18:43,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d250dba6/240d6e81f75645049bb2b301e8d77cc2/FLAGdd2a39c3b [2019-10-07 15:18:43,522 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:18:43,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product61.cil.c [2019-10-07 15:18:43,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d250dba6/240d6e81f75645049bb2b301e8d77cc2/FLAGdd2a39c3b [2019-10-07 15:18:43,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d250dba6/240d6e81f75645049bb2b301e8d77cc2 [2019-10-07 15:18:43,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:18:43,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:18:43,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:18:43,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:18:43,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:18:43,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:18:43" (1/1) ... [2019-10-07 15:18:43,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:43, skipping insertion in model container [2019-10-07 15:18:43,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:18:43" (1/1) ... [2019-10-07 15:18:43,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:18:43,962 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:18:44,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:18:44,445 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:18:44,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:18:44,603 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:18:44,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44 WrapperNode [2019-10-07 15:18:44,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:18:44,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:18:44,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:18:44,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:18:44,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (1/1) ... [2019-10-07 15:18:44,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:18:44,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:18:44,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:18:44,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:18:44,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (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 [2019-10-07 15:18:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:18:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:18:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:18:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:18:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:18:44,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:18:44,808 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:18:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:18:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:18:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:18:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:18:44,810 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:18:44,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:18:44,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:18:44,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:18:44,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:18:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:18:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:18:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:18:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:18:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:18:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:18:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:18:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:18:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:18:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:18:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:18:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:18:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:18:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:18:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:18:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:18:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:18:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:18:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:18:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:18:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:18:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:18:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:18:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:18:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:18:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:18:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:18:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:18:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:18:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:18:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:18:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:18:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:18:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:18:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:18:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:18:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:18:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:18:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:18:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:18:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:18:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:18:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:18:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:18:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:18:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:18:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:18:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:18:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:18:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:18:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:18:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:18:46,601 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:18:46,602 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:18:46,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:18:46 BoogieIcfgContainer [2019-10-07 15:18:46,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:18:46,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:18:46,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:18:46,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:18:46,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:18:43" (1/3) ... [2019-10-07 15:18:46,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e74c571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:18:46, skipping insertion in model container [2019-10-07 15:18:46,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:18:44" (2/3) ... [2019-10-07 15:18:46,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e74c571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:18:46, skipping insertion in model container [2019-10-07 15:18:46,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:18:46" (3/3) ... [2019-10-07 15:18:46,613 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2019-10-07 15:18:46,625 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:18:46,635 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:18:46,648 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:18:46,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:18:46,676 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:18:46,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:18:46,676 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:18:46,677 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:18:46,677 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:18:46,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:18:46,677 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:18:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-10-07 15:18:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:18:46,717 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:46,719 INFO L385 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] [2019-10-07 15:18:46,722 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:46,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:46,728 INFO L82 PathProgramCache]: Analyzing trace with hash 455865227, now seen corresponding path program 1 times [2019-10-07 15:18:46,737 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:46,738 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:46,738 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:46,738 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:47,116 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:47,117 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:47,118 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:18:47,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:18:47,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:18:47,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:18:47,139 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-10-07 15:18:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:47,186 INFO L93 Difference]: Finished difference Result 263 states and 320 transitions. [2019-10-07 15:18:47,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:18:47,189 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2019-10-07 15:18:47,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:47,208 INFO L225 Difference]: With dead ends: 263 [2019-10-07 15:18:47,208 INFO L226 Difference]: Without dead ends: 132 [2019-10-07 15:18:47,218 INFO L606 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 [2019-10-07 15:18:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-07 15:18:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-07 15:18:47,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-07 15:18:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-07 15:18:47,297 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 47 [2019-10-07 15:18:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:47,299 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-07 15:18:47,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:18:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-07 15:18:47,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-07 15:18:47,307 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:47,307 INFO L385 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] [2019-10-07 15:18:47,307 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:47,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2105308245, now seen corresponding path program 1 times [2019-10-07 15:18:47,308 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:47,308 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:47,309 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:47,309 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:47,492 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:47,492 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:47,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:18:47,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:18:47,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:18:47,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:18:47,498 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-10-07 15:18:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:47,527 INFO L93 Difference]: Finished difference Result 221 states and 259 transitions. [2019-10-07 15:18:47,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:18:47,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-07 15:18:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:47,530 INFO L225 Difference]: With dead ends: 221 [2019-10-07 15:18:47,530 INFO L226 Difference]: Without dead ends: 124 [2019-10-07 15:18:47,532 INFO L606 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 [2019-10-07 15:18:47,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-07 15:18:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-07 15:18:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-07 15:18:47,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-10-07 15:18:47,560 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 48 [2019-10-07 15:18:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:47,561 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-10-07 15:18:47,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:18:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-10-07 15:18:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-07 15:18:47,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:47,571 INFO L385 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] [2019-10-07 15:18:47,571 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:47,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:47,572 INFO L82 PathProgramCache]: Analyzing trace with hash -598322779, now seen corresponding path program 1 times [2019-10-07 15:18:47,574 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:47,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:47,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:47,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:47,789 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:47,789 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:47,789 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:18:47,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:18:47,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:18:47,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:18:47,791 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2019-10-07 15:18:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:48,123 INFO L93 Difference]: Finished difference Result 226 states and 265 transitions. [2019-10-07 15:18:48,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:18:48,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-07 15:18:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:48,126 INFO L225 Difference]: With dead ends: 226 [2019-10-07 15:18:48,127 INFO L226 Difference]: Without dead ends: 124 [2019-10-07 15:18:48,128 INFO L606 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 [2019-10-07 15:18:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-07 15:18:48,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-07 15:18:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-07 15:18:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2019-10-07 15:18:48,143 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 50 [2019-10-07 15:18:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:48,143 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2019-10-07 15:18:48,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:18:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2019-10-07 15:18:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-07 15:18:48,146 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:48,147 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:48,147 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:48,147 INFO L82 PathProgramCache]: Analyzing trace with hash 50068250, now seen corresponding path program 1 times [2019-10-07 15:18:48,148 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:48,148 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:48,148 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:48,148 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:18:48,306 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:48,307 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:48,307 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:18:48,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:18:48,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:18:48,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:18:48,308 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand 5 states. [2019-10-07 15:18:48,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:48,899 INFO L93 Difference]: Finished difference Result 332 states and 393 transitions. [2019-10-07 15:18:48,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:18:48,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2019-10-07 15:18:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:48,903 INFO L225 Difference]: With dead ends: 332 [2019-10-07 15:18:48,903 INFO L226 Difference]: Without dead ends: 230 [2019-10-07 15:18:48,905 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:18:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-07 15:18:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 215. [2019-10-07 15:18:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-10-07 15:18:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 238 transitions. [2019-10-07 15:18:48,933 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 238 transitions. Word has length 67 [2019-10-07 15:18:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:48,934 INFO L462 AbstractCegarLoop]: Abstraction has 215 states and 238 transitions. [2019-10-07 15:18:48,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:18:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 238 transitions. [2019-10-07 15:18:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 15:18:48,936 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:48,936 INFO L385 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] [2019-10-07 15:18:48,936 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:48,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:48,937 INFO L82 PathProgramCache]: Analyzing trace with hash 231561739, now seen corresponding path program 1 times [2019-10-07 15:18:48,937 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:48,937 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:48,937 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:48,937 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:49,063 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:49,063 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:49,063 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:18:49,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:18:49,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:18:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:18:49,066 INFO L87 Difference]: Start difference. First operand 215 states and 238 transitions. Second operand 6 states. [2019-10-07 15:18:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:49,253 INFO L93 Difference]: Finished difference Result 522 states and 593 transitions. [2019-10-07 15:18:49,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:18:49,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2019-10-07 15:18:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:49,258 INFO L225 Difference]: With dead ends: 522 [2019-10-07 15:18:49,258 INFO L226 Difference]: Without dead ends: 329 [2019-10-07 15:18:49,260 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:18:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-10-07 15:18:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 319. [2019-10-07 15:18:49,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-07 15:18:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 356 transitions. [2019-10-07 15:18:49,322 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 356 transitions. Word has length 77 [2019-10-07 15:18:49,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:49,323 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 356 transitions. [2019-10-07 15:18:49,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:18:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 356 transitions. [2019-10-07 15:18:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 15:18:49,324 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:49,325 INFO L385 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] [2019-10-07 15:18:49,325 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:49,325 INFO L82 PathProgramCache]: Analyzing trace with hash 313705049, now seen corresponding path program 1 times [2019-10-07 15:18:49,326 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:49,326 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:49,326 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:49,326 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:49,618 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:49,618 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:49,618 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:18:49,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:18:49,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:18:49,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:18:49,620 INFO L87 Difference]: Start difference. First operand 319 states and 356 transitions. Second operand 14 states. [2019-10-07 15:18:50,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:50,044 INFO L93 Difference]: Finished difference Result 633 states and 726 transitions. [2019-10-07 15:18:50,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:18:50,045 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2019-10-07 15:18:50,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:50,048 INFO L225 Difference]: With dead ends: 633 [2019-10-07 15:18:50,049 INFO L226 Difference]: Without dead ends: 440 [2019-10-07 15:18:50,050 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-07 15:18:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-07 15:18:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 420. [2019-10-07 15:18:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2019-10-07 15:18:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 476 transitions. [2019-10-07 15:18:50,097 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 476 transitions. Word has length 80 [2019-10-07 15:18:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:50,098 INFO L462 AbstractCegarLoop]: Abstraction has 420 states and 476 transitions. [2019-10-07 15:18:50,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:18:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 476 transitions. [2019-10-07 15:18:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-07 15:18:50,103 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:50,103 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:50,104 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:50,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:50,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1750516735, now seen corresponding path program 1 times [2019-10-07 15:18:50,104 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:50,104 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,105 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,105 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:50,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:50,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:18:50,236 INFO L95 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 [2019-10-07 15:18:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:50,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 15:18:50,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:18:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:18:50,653 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:18:51,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:51,246 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:18:51,246 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2019-10-07 15:18:51,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 15:18:51,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 15:18:51,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:18:51,247 INFO L87 Difference]: Start difference. First operand 420 states and 476 transitions. Second operand 8 states. [2019-10-07 15:18:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:51,745 INFO L93 Difference]: Finished difference Result 1195 states and 1385 transitions. [2019-10-07 15:18:51,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:18:51,746 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2019-10-07 15:18:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:51,752 INFO L225 Difference]: With dead ends: 1195 [2019-10-07 15:18:51,753 INFO L226 Difference]: Without dead ends: 797 [2019-10-07 15:18:51,755 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:18:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2019-10-07 15:18:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 782. [2019-10-07 15:18:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-07 15:18:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 890 transitions. [2019-10-07 15:18:51,848 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 890 transitions. Word has length 90 [2019-10-07 15:18:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:51,852 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 890 transitions. [2019-10-07 15:18:51,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 15:18:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 890 transitions. [2019-10-07 15:18:51,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-07 15:18:51,857 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:51,858 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:52,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:52,064 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:52,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1436412607, now seen corresponding path program 1 times [2019-10-07 15:18:52,064 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:52,064 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,065 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,065 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:18:52,251 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:52,251 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:52,251 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:18:52,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:18:52,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:18:52,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:18:52,253 INFO L87 Difference]: Start difference. First operand 782 states and 890 transitions. Second operand 12 states. [2019-10-07 15:18:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:54,107 INFO L93 Difference]: Finished difference Result 1559 states and 1809 transitions. [2019-10-07 15:18:54,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:18:54,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2019-10-07 15:18:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:54,118 INFO L225 Difference]: With dead ends: 1559 [2019-10-07 15:18:54,118 INFO L226 Difference]: Without dead ends: 1161 [2019-10-07 15:18:54,122 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:18:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2019-10-07 15:18:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1127. [2019-10-07 15:18:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-07 15:18:54,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1279 transitions. [2019-10-07 15:18:54,214 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1279 transitions. Word has length 93 [2019-10-07 15:18:54,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:54,215 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 1279 transitions. [2019-10-07 15:18:54,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:18:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1279 transitions. [2019-10-07 15:18:54,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-07 15:18:54,219 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:54,219 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 15:18:54,220 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:54,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1442597137, now seen corresponding path program 1 times [2019-10-07 15:18:54,221 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:54,221 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:54,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:54,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:18:54,366 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:54,366 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:18:54,366 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:18:54,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:18:54,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:18:54,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:18:54,367 INFO L87 Difference]: Start difference. First operand 1127 states and 1279 transitions. Second operand 10 states. [2019-10-07 15:18:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:54,652 INFO L93 Difference]: Finished difference Result 2244 states and 2549 transitions. [2019-10-07 15:18:54,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 15:18:54,652 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2019-10-07 15:18:54,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:54,660 INFO L225 Difference]: With dead ends: 2244 [2019-10-07 15:18:54,660 INFO L226 Difference]: Without dead ends: 1139 [2019-10-07 15:18:54,664 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:18:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2019-10-07 15:18:54,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1067. [2019-10-07 15:18:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2019-10-07 15:18:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1162 transitions. [2019-10-07 15:18:54,728 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1162 transitions. Word has length 93 [2019-10-07 15:18:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:54,728 INFO L462 AbstractCegarLoop]: Abstraction has 1067 states and 1162 transitions. [2019-10-07 15:18:54,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:18:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1162 transitions. [2019-10-07 15:18:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 15:18:54,733 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:54,733 INFO L385 BasicCegarLoop]: trace histogram [4, 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] [2019-10-07 15:18:54,733 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 520757098, now seen corresponding path program 1 times [2019-10-07 15:18:54,734 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:54,734 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:54,734 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:54,735 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:18:54,889 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:54,889 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:18:54,889 INFO L95 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 [2019-10-07 15:18:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:55,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-07 15:18:55,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:18:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:18:55,340 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:18:55,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:55,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:55,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:55,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:55,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:18:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 15:18:55,760 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:18:55,760 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 21 [2019-10-07 15:18:55,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:18:55,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:18:55,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-07 15:18:55,761 INFO L87 Difference]: Start difference. First operand 1067 states and 1162 transitions. Second operand 9 states. [2019-10-07 15:18:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:56,442 INFO L93 Difference]: Finished difference Result 2405 states and 2664 transitions. [2019-10-07 15:18:56,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 15:18:56,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 130 [2019-10-07 15:18:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:56,454 INFO L225 Difference]: With dead ends: 2405 [2019-10-07 15:18:56,454 INFO L226 Difference]: Without dead ends: 1624 [2019-10-07 15:18:56,459 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2019-10-07 15:18:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2019-10-07 15:18:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1548. [2019-10-07 15:18:56,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1548 states. [2019-10-07 15:18:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1684 transitions. [2019-10-07 15:18:56,580 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1684 transitions. Word has length 130 [2019-10-07 15:18:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:56,580 INFO L462 AbstractCegarLoop]: Abstraction has 1548 states and 1684 transitions. [2019-10-07 15:18:56,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:18:56,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1684 transitions. [2019-10-07 15:18:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:18:56,586 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:18:56,586 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 15:18:56,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:56,801 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:18:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:18:56,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1014834216, now seen corresponding path program 1 times [2019-10-07 15:18:56,801 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:18:56,801 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:56,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:56,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:18:56,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:18:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 15:18:56,980 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:18:56,980 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:18:56,980 INFO L95 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 [2019-10-07 15:18:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:18:57,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 15:18:57,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:18:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 15:18:57,264 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:18:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 15:18:57,958 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:18:57,958 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 11] total 24 [2019-10-07 15:18:57,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:18:57,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:18:57,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2019-10-07 15:18:57,960 INFO L87 Difference]: Start difference. First operand 1548 states and 1684 transitions. Second operand 11 states. [2019-10-07 15:18:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:18:58,471 INFO L93 Difference]: Finished difference Result 3135 states and 3554 transitions. [2019-10-07 15:18:58,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:18:58,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 143 [2019-10-07 15:18:58,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:18:58,473 INFO L225 Difference]: With dead ends: 3135 [2019-10-07 15:18:58,473 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 15:18:58,481 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:18:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 15:18:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 15:18:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 15:18:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 15:18:58,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2019-10-07 15:18:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:18:58,484 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 15:18:58,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:18:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 15:18:58,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 15:18:58,690 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:58,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 15:19:00,461 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-10-07 15:19:00,690 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-07 15:19:01,143 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2019-10-07 15:19:01,546 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2019-10-07 15:19:01,832 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2019-10-07 15:19:02,276 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2019-10-07 15:19:02,514 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2019-10-07 15:19:03,002 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 15 [2019-10-07 15:19:03,240 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2019-10-07 15:19:03,575 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2019-10-07 15:19:03,721 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-10-07 15:19:03,845 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2019-10-07 15:19:04,279 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L723(lines 723 727) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L717-2(lines 717 738) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 692 747) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L739(lines 716 740) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 692 747) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L800(lines 773 801) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L793(line 793) no Hoare annotation was computed. [2019-10-07 15:19:04,524 INFO L443 ceAbstractionStarter]: For program point L793-1(line 793) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 748 807) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 748 807) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point L780(lines 780 784) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 748 807) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point L774-2(lines 774 799) no Hoare annotation was computed. [2019-10-07 15:19:04,525 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 623 629) the Hoare annotation is: true [2019-10-07 15:19:04,525 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 623 629) no Hoare annotation was computed. [2019-10-07 15:19:04,526 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 630 638) no Hoare annotation was computed. [2019-10-07 15:19:04,526 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 630 638) the Hoare annotation is: true [2019-10-07 15:19:04,526 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 547 569) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,526 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 547 569) no Hoare annotation was computed. [2019-10-07 15:19:04,526 INFO L439 ceAbstractionStarter]: At program point L559(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= main_~tmp~7 ~systemActive~0))) [2019-10-07 15:19:04,527 INFO L439 ceAbstractionStarter]: At program point L559-1(line 559) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= main_~tmp~7 ~systemActive~0))) [2019-10-07 15:19:04,527 INFO L443 ceAbstractionStarter]: For program point L557(lines 557 564) no Hoare annotation was computed. [2019-10-07 15:19:04,527 INFO L443 ceAbstractionStarter]: For program point L557-1(lines 557 564) no Hoare annotation was computed. [2019-10-07 15:19:04,527 INFO L443 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2019-10-07 15:19:04,527 INFO L439 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,527 INFO L439 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,528 INFO L439 ceAbstractionStarter]: At program point L553-1(line 553) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L513(line 513) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 503 526) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L510(line 510) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 503 526) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 503 526) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-10-07 15:19:04,528 INFO L443 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L519(line 519) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L516(line 516) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L439 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2019-10-07 15:19:04,529 INFO L439 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,529 INFO L443 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2019-10-07 15:19:04,530 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2019-10-07 15:19:04,530 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 180 204) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,530 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 180 204) no Hoare annotation was computed. [2019-10-07 15:19:04,530 INFO L439 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,530 INFO L443 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2019-10-07 15:19:04,530 INFO L439 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,530 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 275 283) no Hoare annotation was computed. [2019-10-07 15:19:04,530 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 275 283) the Hoare annotation is: true [2019-10-07 15:19:04,531 INFO L446 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: true [2019-10-07 15:19:04,531 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 339 357) the Hoare annotation is: true [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 339 357) no Hoare annotation was computed. [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point L314(line 314) no Hoare annotation was computed. [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point L314-1(line 314) no Hoare annotation was computed. [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 284 319) no Hoare annotation was computed. [2019-10-07 15:19:04,531 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 284 319) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 616 622) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 616 622) the Hoare annotation is: true [2019-10-07 15:19:04,532 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 646 691) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 646 691) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 959 1004) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 959 1004) no Hoare annotation was computed. [2019-10-07 15:19:04,532 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 534 543) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,533 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 534 543) no Hoare annotation was computed. [2019-10-07 15:19:04,533 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 534 543) no Hoare annotation was computed. [2019-10-07 15:19:04,533 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 264 274) the Hoare annotation is: true [2019-10-07 15:19:04,533 INFO L446 ceAbstractionStarter]: At program point L269(line 269) the Hoare annotation is: true [2019-10-07 15:19:04,533 INFO L443 ceAbstractionStarter]: For program point L269-1(line 269) no Hoare annotation was computed. [2019-10-07 15:19:04,533 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 264 274) no Hoare annotation was computed. [2019-10-07 15:19:04,533 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 256 263) the Hoare annotation is: (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:19:04,533 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 256 263) no Hoare annotation was computed. [2019-10-07 15:19:04,534 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 439 452) no Hoare annotation was computed. [2019-10-07 15:19:04,534 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 439 452) the Hoare annotation is: true [2019-10-07 15:19:04,534 INFO L439 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,534 INFO L443 ceAbstractionStarter]: For program point L225-1(lines 206 230) no Hoare annotation was computed. [2019-10-07 15:19:04,534 INFO L439 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,534 INFO L439 ceAbstractionStarter]: At program point L216(line 216) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,535 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 206 230) no Hoare annotation was computed. [2019-10-07 15:19:04,535 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 222) no Hoare annotation was computed. [2019-10-07 15:19:04,535 INFO L439 ceAbstractionStarter]: At program point L212(line 212) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,535 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 206 230) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,535 INFO L443 ceAbstractionStarter]: For program point L212-1(line 212) no Hoare annotation was computed. [2019-10-07 15:19:04,535 INFO L443 ceAbstractionStarter]: For program point L210(lines 210 227) no Hoare annotation was computed. [2019-10-07 15:19:04,535 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2019-10-07 15:19:04,536 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2019-10-07 15:19:04,536 INFO L439 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse4 (= 0 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (not (= ~waterLevel~0 2)) .cse4 .cse1 .cse2 .cse5) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-07 15:19:04,536 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2019-10-07 15:19:04,536 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,536 INFO L443 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2019-10-07 15:19:04,536 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2019-10-07 15:19:04,536 INFO L439 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-07 15:19:04,537 INFO L439 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse6 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse4 (or .cse6 (= 1 ~methaneLevelCritical~0))) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3)) (.cse3 (= ~pumpRunning~0 0))) (or (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse5) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) .cse6 (and .cse4 .cse1 .cse2 .cse3)))) [2019-10-07 15:19:04,537 INFO L443 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2019-10-07 15:19:04,537 INFO L439 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= 1 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 1)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= ~systemActive~0 1)) (and .cse0 .cse1 .cse2 .cse4) (and (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1 .cse4) .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse3 (and (= 0 ~methaneLevelCritical~0) .cse1)) .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-07 15:19:04,537 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2019-10-07 15:19:04,537 INFO L443 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2019-10-07 15:19:04,537 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2019-10-07 15:19:04,538 INFO L439 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse4 (= 0 test_~splverifierCounter~0))) (let ((.cse0 (and (= 1 ~systemActive~0) .cse4 (= ~pumpRunning~0 0))) (.cse3 (= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse2 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse4 .cse2 .cse5) (and .cse1 .cse4 .cse2 .cse5) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))))) [2019-10-07 15:19:04,538 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 913 958) no Hoare annotation was computed. [2019-10-07 15:19:04,538 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 913 958) no Hoare annotation was computed. [2019-10-07 15:19:04,538 INFO L439 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 231 238) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:04,538 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 231 238) no Hoare annotation was computed. [2019-10-07 15:19:04,538 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 453 461) the Hoare annotation is: true [2019-10-07 15:19:04,538 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 453 461) no Hoare annotation was computed. [2019-10-07 15:19:04,538 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 407 429) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 407 429) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 606 615) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 606 615) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 810 912) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point L859-2(lines 859 879) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point L880(lines 858 881) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point L839(lines 839 855) no Hoare annotation was computed. [2019-10-07 15:19:04,539 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 810 912) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L860(lines 859 879) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L891(line 891) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L891-1(line 891) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L856(lines 856 897) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 810 912) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L875(line 875) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L875-1(line 875) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L443 ceAbstractionStarter]: For program point L834(lines 834 838) no Hoare annotation was computed. [2019-10-07 15:19:04,540 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (or (< ~waterLevel~0 3) (<= 3 |old(~waterLevel~0)|)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2019-10-07 15:19:04,541 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:04,541 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 239 255) no Hoare annotation was computed. [2019-10-07 15:19:04,541 INFO L439 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (or .cse0 (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 activatePump_~tmp~4)) .cse1 .cse2))) [2019-10-07 15:19:04,541 INFO L443 ceAbstractionStarter]: For program point L250-1(lines 239 255) no Hoare annotation was computed. [2019-10-07 15:19:04,541 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 239 255) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:04,541 INFO L443 ceAbstractionStarter]: For program point L246(lines 246 252) no Hoare annotation was computed. [2019-10-07 15:19:04,541 INFO L439 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2019-10-07 15:19:04,542 INFO L443 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2019-10-07 15:19:04,542 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 320 338) no Hoare annotation was computed. [2019-10-07 15:19:04,542 INFO L446 ceAbstractionStarter]: At program point L327(line 327) the Hoare annotation is: true [2019-10-07 15:19:04,542 INFO L443 ceAbstractionStarter]: For program point L327-1(line 327) no Hoare annotation was computed. [2019-10-07 15:19:04,542 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 320 338) the Hoare annotation is: true [2019-10-07 15:19:04,542 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 430 438) the Hoare annotation is: true [2019-10-07 15:19:04,542 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 430 438) no Hoare annotation was computed. [2019-10-07 15:19:04,542 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 386 397) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1) .cse2) (or .cse2 (or .cse0 (or .cse1 (not (= 1 ~pumpRunning~0))))))) [2019-10-07 15:19:04,543 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 386 397) no Hoare annotation was computed. [2019-10-07 15:19:04,543 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:04,543 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-07 15:19:04,543 INFO L439 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (< ~waterLevel~0 3) (= ~pumpRunning~0 1)) (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1))))) [2019-10-07 15:19:04,543 INFO L443 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2019-10-07 15:19:04,543 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1)) (and .cse2 (= ~pumpRunning~0 1))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse1 (< ~waterLevel~0 2)) (or .cse3 (= 1 ~waterLevel~0) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 0))))) [2019-10-07 15:19:04,544 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2019-10-07 15:19:04,544 INFO L439 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~pumpRunning~0 1) .cse0) (or .cse1 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2))) (or (not (< |old(~waterLevel~0)| 2)) .cse3 .cse2 .cse0) (or .cse3 (= 1 ~waterLevel~0) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse1 .cse2 (and (< ~waterLevel~0 3) (= ~pumpRunning~0 0))))) [2019-10-07 15:19:04,544 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2019-10-07 15:19:04,544 INFO L439 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse6 (< ~waterLevel~0 2)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (= ~pumpRunning~0 1)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or (not (< |old(~waterLevel~0)| 2)) .cse0 .cse3 .cse6) (or .cse0 (= 1 ~waterLevel~0) .cse3 (not (= |old(~waterLevel~0)| 1))) (or (and .cse7 .cse6) (and .cse5 .cse6) (or .cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse3))) (or .cse0 (and .cse4 .cse7) .cse2 .cse3 (not .cse1) (and (not (= ~waterLevel~0 2)) .cse4 .cse5)))) [2019-10-07 15:19:04,544 INFO L446 ceAbstractionStarter]: At program point L483-2(lines 483 497) the Hoare annotation is: true [2019-10-07 15:19:04,544 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 473 502) no Hoare annotation was computed. [2019-10-07 15:19:04,545 INFO L446 ceAbstractionStarter]: At program point L479(line 479) the Hoare annotation is: true [2019-10-07 15:19:04,545 INFO L443 ceAbstractionStarter]: For program point L479-1(line 479) no Hoare annotation was computed. [2019-10-07 15:19:04,545 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 473 502) the Hoare annotation is: true [2019-10-07 15:19:04,545 INFO L446 ceAbstractionStarter]: At program point L498(lines 473 502) the Hoare annotation is: true [2019-10-07 15:19:04,545 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-10-07 15:19:04,545 INFO L443 ceAbstractionStarter]: For program point L487(lines 487 491) no Hoare annotation was computed. [2019-10-07 15:19:04,545 INFO L446 ceAbstractionStarter]: At program point L487-1(lines 487 491) the Hoare annotation is: true [2019-10-07 15:19:04,545 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 398 406) the Hoare annotation is: true [2019-10-07 15:19:04,545 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 398 406) no Hoare annotation was computed. [2019-10-07 15:19:04,546 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-10-07 15:19:04,546 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 571 603) no Hoare annotation was computed. [2019-10-07 15:19:04,546 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 571 603) the Hoare annotation is: true [2019-10-07 15:19:04,546 INFO L439 ceAbstractionStarter]: At program point L594(line 594) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (< ~waterLevel~0 3))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (< ~waterLevel~0 2)) .cse0 .cse1) (or .cse2 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (= ~methaneLevelCritical~0 0) .cse2 .cse1))) [2019-10-07 15:19:04,546 INFO L443 ceAbstractionStarter]: For program point L590(lines 590 596) no Hoare annotation was computed. [2019-10-07 15:19:04,546 INFO L439 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (let ((.cse2 (not (= 1 ~pumpRunning~0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (< ~waterLevel~0 2)) .cse4 .cse3) (or (= ~waterLevel~0 2) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse3))) [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point L588-1(line 588) no Hoare annotation was computed. [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point L586(lines 586 599) no Hoare annotation was computed. [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point L586-1(lines 571 603) no Hoare annotation was computed. [2019-10-07 15:19:04,547 INFO L439 ceAbstractionStarter]: At program point L584(line 584) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (< ~waterLevel~0 3))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point L584-1(line 584) no Hoare annotation was computed. [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 600) no Hoare annotation was computed. [2019-10-07 15:19:04,547 INFO L446 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: true [2019-10-07 15:19:04,547 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 362 373) the Hoare annotation is: (or (< ~waterLevel~0 3) (or (not (= ~systemActive~0 1)) (not (< |old(~waterLevel~0)| 3)) (not (= 1 ~pumpRunning~0)))) [2019-10-07 15:19:04,547 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 362 373) no Hoare annotation was computed. [2019-10-07 15:19:04,548 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 527 533) no Hoare annotation was computed. [2019-10-07 15:19:04,548 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 527 533) the Hoare annotation is: true [2019-10-07 15:19:04,548 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:19:04,548 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-10-07 15:19:04,548 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 15:19:04,548 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 15:19:04,548 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,549 INFO L439 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (= ~pumpRunning~0 0)) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,549 INFO L443 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2019-10-07 15:19:04,549 INFO L443 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2019-10-07 15:19:04,549 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2019-10-07 15:19:04,549 INFO L439 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (= ~pumpRunning~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,549 INFO L443 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2019-10-07 15:19:04,550 INFO L439 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0 (and (not (= ~waterLevel~0 2)) (= ~pumpRunning~0 0))) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,550 INFO L439 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (or (= 1 processEnvironment__wrappee__highWaterSensor_~tmp~1) (not (= ~waterLevel~0 2))) (= ~pumpRunning~0 0)) (not (= 0 |old(~pumpRunning~0)|)) (not (< ~waterLevel~0 3)) .cse0) (or (not (< ~waterLevel~0 2)) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2019-10-07 15:19:04,550 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2019-10-07 15:19:04,550 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 374 385) no Hoare annotation was computed. [2019-10-07 15:19:04,550 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 374 385) the Hoare annotation is: (let ((.cse0 (not (< |old(~waterLevel~0)| 3))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (< ~waterLevel~0 3))) (and (or (or .cse0 .cse1 (not (= 1 ~pumpRunning~0))) .cse2) (or (or .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)) .cse2))) [2019-10-07 15:19:04,551 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2019-10-07 15:19:04,551 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 463 470) the Hoare annotation is: true [2019-10-07 15:19:04,551 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 463 470) no Hoare annotation was computed. [2019-10-07 15:19:04,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:19:04 BoogieIcfgContainer [2019-10-07 15:19:04,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 15:19:04,569 INFO L168 Benchmark]: Toolchain (without parser) took 20679.56 ms. Allocated memory was 138.4 MB in the beginning and 523.2 MB in the end (delta: 384.8 MB). Free memory was 101.7 MB in the beginning and 191.0 MB in the end (delta: -89.3 MB). Peak memory consumption was 402.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,570 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.60 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 166.6 MB in the end (delta: -65.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,571 INFO L168 Benchmark]: Boogie Preprocessor took 97.25 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 161.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,572 INFO L168 Benchmark]: RCFGBuilder took 1901.92 ms. Allocated memory was 200.8 MB in the beginning and 234.4 MB in the end (delta: 33.6 MB). Free memory was 161.9 MB in the beginning and 139.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,573 INFO L168 Benchmark]: TraceAbstraction took 17961.73 ms. Allocated memory was 234.4 MB in the beginning and 523.2 MB in the end (delta: 288.9 MB). Free memory was 139.8 MB in the beginning and 191.0 MB in the end (delta: -51.3 MB). Peak memory consumption was 344.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:19:04,577 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.60 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 166.6 MB in the end (delta: -65.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.25 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 161.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1901.92 ms. Allocated memory was 200.8 MB in the beginning and 234.4 MB in the end (delta: 33.6 MB). Free memory was 161.9 MB in the beginning and 139.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17961.73 ms. Allocated memory was 234.4 MB in the beginning and 523.2 MB in the end (delta: 288.9 MB). Free memory was 139.8 MB in the beginning and 191.0 MB in the end (delta: -51.3 MB). Peak memory consumption was 344.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: 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: 483]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((!(systemActive == 1) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || !(0 == \old(pumpRunning))) || ((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || (((0 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 1)) || (((1 == methaneLevelCritical && 0 == splverifierCounter) && waterLevel < 3) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 202 locations, 1 error locations. Result: SAFE, OverallTime: 17.8s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, HoareTripleCheckerStatistics: 1816 SDtfs, 1565 SDslu, 6282 SDs, 0 SdLazy, 3126 SolverSat, 835 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 889 GetRequests, 746 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1548occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 242 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 3431 PreInvPairs, 3559 NumberOfFragments, 1699 HoareAnnotationTreeSize, 3431 FomulaSimplifications, 6646 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 70 FomulaSimplificationsInter, 20725 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1281 NumberOfCodeBlocks, 1281 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1627 ConstructedInterpolants, 0 QuantifiedInterpolants, 320557 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2485 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 239/258 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...