java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:19:49,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:19:49,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:19:49,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:19:49,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:19:49,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:19:49,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:19:49,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:19:49,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:19:49,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:19:49,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:19:49,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:19:49,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:19:49,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:19:49,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:19:49,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:19:49,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:19:49,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:19:49,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:19:49,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:19:49,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:19:49,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:19:49,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:19:49,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:19:49,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:19:49,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:19:49,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:19:49,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:19:49,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:19:49,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:19:49,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:19:49,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:19:49,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:19:49,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:19:49,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:19:49,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:19:49,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:19:49,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:19:49,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:19:49,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:19:49,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:19:49,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:19:49,606 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:19:49,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:19:49,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:19:49,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:19:49,610 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:19:49,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:19:49,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:19:49,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:19:49,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:19:49,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:19:49,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:19:49,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:19:49,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:19:49,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:19:49,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:19:49,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:19:49,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:19:49,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:19:49,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:19:49,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:19:49,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:19:49,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:19:49,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:19:49,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:19:49,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:19:49,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:19:49,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:19:49,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:19:49,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:19:49,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:19:49,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:19:49,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:19:49,924 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:19:49,925 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:19:49,926 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-15 01:19:49,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde8e873f/3efd0b87767842f6b15be456d7bb749a/FLAG03b6e1b2f [2019-10-15 01:19:50,518 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:19:50,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-15 01:19:50,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde8e873f/3efd0b87767842f6b15be456d7bb749a/FLAG03b6e1b2f [2019-10-15 01:19:50,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde8e873f/3efd0b87767842f6b15be456d7bb749a [2019-10-15 01:19:50,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:19:50,872 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:19:50,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:19:50,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:19:50,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:19:50,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:19:50" (1/1) ... [2019-10-15 01:19:50,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:50, skipping insertion in model container [2019-10-15 01:19:50,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:19:50" (1/1) ... [2019-10-15 01:19:50,889 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:19:50,951 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:19:51,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:19:51,469 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:19:51,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:19:51,595 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:19:51,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51 WrapperNode [2019-10-15 01:19:51,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:19:51,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:19:51,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:19:51,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:19:51,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... [2019-10-15 01:19:51,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:19:51,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:19:51,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:19:51,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:19:51,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:19:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:19:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:19:51,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:19:51,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:19:51,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:19:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:19:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:19:51,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 01:19:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 01:19:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:19:51,794 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 01:19:51,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:19:51,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 01:19:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 01:19:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 01:19:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 01:19:51,798 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 01:19:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 01:19:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 01:19:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 01:19:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 01:19:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 01:19:51,801 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 01:19:51,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 01:19:51,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 01:19:51,801 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:19:51,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:19:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:19:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:19:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:19:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:19:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:19:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:19:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:19:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 01:19:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 01:19:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 01:19:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 01:19:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 01:19:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:19:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 01:19:51,808 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 01:19:51,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 01:19:51,808 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:19:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 01:19:51,810 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 01:19:51,810 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 01:19:51,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 01:19:51,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 01:19:51,811 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 01:19:51,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:19:51,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 01:19:51,811 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 01:19:51,812 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:19:51,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:19:51,812 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:19:51,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:19:51,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:19:51,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:19:51,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:19:51,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:19:51,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:19:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:19:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:19:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:19:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:19:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:19:52,932 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:19:52,933 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 01:19:52,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:19:52 BoogieIcfgContainer [2019-10-15 01:19:52,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:19:52,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:19:52,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:19:52,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:19:52,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:19:50" (1/3) ... [2019-10-15 01:19:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600de8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:19:52, skipping insertion in model container [2019-10-15 01:19:52,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:19:51" (2/3) ... [2019-10-15 01:19:52,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600de8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:19:52, skipping insertion in model container [2019-10-15 01:19:52,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:19:52" (3/3) ... [2019-10-15 01:19:52,945 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-10-15 01:19:52,956 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:19:52,966 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:19:52,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:19:53,008 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:19:53,008 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:19:53,008 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:19:53,008 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:19:53,009 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:19:53,009 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:19:53,009 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:19:53,009 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:19:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-10-15 01:19:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 01:19:53,045 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:53,046 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:53,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:53,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083297, now seen corresponding path program 1 times [2019-10-15 01:19:53,066 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:53,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948022827] [2019-10-15 01:19:53,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:53,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948022827] [2019-10-15 01:19:53,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:53,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:19:53,514 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352143318] [2019-10-15 01:19:53,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:19:53,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:53,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:19:53,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:19:53,541 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-10-15 01:19:53,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:53,584 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2019-10-15 01:19:53,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:19:53,586 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-15 01:19:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:53,601 INFO L225 Difference]: With dead ends: 270 [2019-10-15 01:19:53,601 INFO L226 Difference]: Without dead ends: 137 [2019-10-15 01:19:53,606 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:19:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-15 01:19:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-15 01:19:53,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-15 01:19:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-10-15 01:19:53,665 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 51 [2019-10-15 01:19:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:53,666 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-10-15 01:19:53,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:19:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-10-15 01:19:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 01:19:53,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:53,670 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:53,670 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash 604742129, now seen corresponding path program 1 times [2019-10-15 01:19:53,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:53,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012903396] [2019-10-15 01:19:53,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:53,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012903396] [2019-10-15 01:19:53,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:53,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:19:53,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214089790] [2019-10-15 01:19:53,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:19:53,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:53,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:19:53,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:19:53,785 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-10-15 01:19:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:53,835 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2019-10-15 01:19:53,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:19:53,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-15 01:19:53,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:53,842 INFO L225 Difference]: With dead ends: 215 [2019-10-15 01:19:53,842 INFO L226 Difference]: Without dead ends: 128 [2019-10-15 01:19:53,844 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:19:53,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-15 01:19:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-15 01:19:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-15 01:19:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2019-10-15 01:19:53,863 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 52 [2019-10-15 01:19:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:53,864 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2019-10-15 01:19:53,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:19:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2019-10-15 01:19:53,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-15 01:19:53,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:53,867 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:53,867 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:53,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:53,868 INFO L82 PathProgramCache]: Analyzing trace with hash -185652476, now seen corresponding path program 1 times [2019-10-15 01:19:53,868 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:53,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161926239] [2019-10-15 01:19:53,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:53,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:54,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161926239] [2019-10-15 01:19:54,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:54,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:19:54,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700566125] [2019-10-15 01:19:54,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:19:54,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:54,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:19:54,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:19:54,042 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2019-10-15 01:19:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:54,368 INFO L93 Difference]: Finished difference Result 228 states and 269 transitions. [2019-10-15 01:19:54,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:19:54,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-15 01:19:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:54,371 INFO L225 Difference]: With dead ends: 228 [2019-10-15 01:19:54,371 INFO L226 Difference]: Without dead ends: 128 [2019-10-15 01:19:54,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:19:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-15 01:19:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-15 01:19:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-15 01:19:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2019-10-15 01:19:54,394 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 57 [2019-10-15 01:19:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:54,395 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2019-10-15 01:19:54,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:19:54,395 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2019-10-15 01:19:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-15 01:19:54,405 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:54,405 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:54,405 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash -285076691, now seen corresponding path program 1 times [2019-10-15 01:19:54,406 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:54,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975185403] [2019-10-15 01:19:54,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:54,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:54,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:54,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975185403] [2019-10-15 01:19:54,603 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:54,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:19:54,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546668662] [2019-10-15 01:19:54,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:19:54,604 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:54,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:19:54,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:19:54,605 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2019-10-15 01:19:55,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:55,143 INFO L93 Difference]: Finished difference Result 329 states and 397 transitions. [2019-10-15 01:19:55,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:19:55,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-10-15 01:19:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:55,151 INFO L225 Difference]: With dead ends: 329 [2019-10-15 01:19:55,154 INFO L226 Difference]: Without dead ends: 229 [2019-10-15 01:19:55,156 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:19:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-15 01:19:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 210. [2019-10-15 01:19:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-15 01:19:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 240 transitions. [2019-10-15 01:19:55,201 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 240 transitions. Word has length 70 [2019-10-15 01:19:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:55,202 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 240 transitions. [2019-10-15 01:19:55,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:19:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 240 transitions. [2019-10-15 01:19:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-15 01:19:55,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:55,204 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:55,204 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:55,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:55,205 INFO L82 PathProgramCache]: Analyzing trace with hash -791027315, now seen corresponding path program 1 times [2019-10-15 01:19:55,205 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:55,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574861589] [2019-10-15 01:19:55,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:55,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:55,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:55,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574861589] [2019-10-15 01:19:55,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:55,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:19:55,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446190984] [2019-10-15 01:19:55,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:19:55,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:55,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:19:55,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:19:55,320 INFO L87 Difference]: Start difference. First operand 210 states and 240 transitions. Second operand 6 states. [2019-10-15 01:19:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:55,560 INFO L93 Difference]: Finished difference Result 556 states and 656 transitions. [2019-10-15 01:19:55,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:19:55,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-10-15 01:19:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:55,567 INFO L225 Difference]: With dead ends: 556 [2019-10-15 01:19:55,568 INFO L226 Difference]: Without dead ends: 374 [2019-10-15 01:19:55,570 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:19:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-15 01:19:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 368. [2019-10-15 01:19:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-15 01:19:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 420 transitions. [2019-10-15 01:19:55,624 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 420 transitions. Word has length 84 [2019-10-15 01:19:55,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:55,627 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 420 transitions. [2019-10-15 01:19:55,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:19:55,627 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 420 transitions. [2019-10-15 01:19:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 01:19:55,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:55,630 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:55,631 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:55,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:55,631 INFO L82 PathProgramCache]: Analyzing trace with hash 474237417, now seen corresponding path program 1 times [2019-10-15 01:19:55,631 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:55,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245068958] [2019-10-15 01:19:55,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:55,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:55,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:55,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245068958] [2019-10-15 01:19:55,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:55,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:19:55,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091716840] [2019-10-15 01:19:55,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:19:55,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:55,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:19:55,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:19:55,786 INFO L87 Difference]: Start difference. First operand 368 states and 420 transitions. Second operand 7 states. [2019-10-15 01:19:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:56,391 INFO L93 Difference]: Finished difference Result 739 states and 868 transitions. [2019-10-15 01:19:56,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:19:56,392 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-10-15 01:19:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:56,415 INFO L225 Difference]: With dead ends: 739 [2019-10-15 01:19:56,416 INFO L226 Difference]: Without dead ends: 399 [2019-10-15 01:19:56,417 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:19:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-15 01:19:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 367. [2019-10-15 01:19:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-10-15 01:19:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 417 transitions. [2019-10-15 01:19:56,444 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 417 transitions. Word has length 88 [2019-10-15 01:19:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:56,444 INFO L462 AbstractCegarLoop]: Abstraction has 367 states and 417 transitions. [2019-10-15 01:19:56,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:19:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 417 transitions. [2019-10-15 01:19:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:19:56,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:56,446 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:56,447 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:56,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1710786942, now seen corresponding path program 1 times [2019-10-15 01:19:56,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:56,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704283490] [2019-10-15 01:19:56,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:56,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704283490] [2019-10-15 01:19:56,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:56,523 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:19:56,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401984701] [2019-10-15 01:19:56,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:19:56,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:56,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:19:56,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:19:56,527 INFO L87 Difference]: Start difference. First operand 367 states and 417 transitions. Second operand 6 states. [2019-10-15 01:19:56,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:56,570 INFO L93 Difference]: Finished difference Result 716 states and 826 transitions. [2019-10-15 01:19:56,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:19:56,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-10-15 01:19:56,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:56,576 INFO L225 Difference]: With dead ends: 716 [2019-10-15 01:19:56,576 INFO L226 Difference]: Without dead ends: 377 [2019-10-15 01:19:56,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:19:56,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-15 01:19:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-15 01:19:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-15 01:19:56,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 427 transitions. [2019-10-15 01:19:56,614 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 427 transitions. Word has length 89 [2019-10-15 01:19:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:56,617 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 427 transitions. [2019-10-15 01:19:56,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:19:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 427 transitions. [2019-10-15 01:19:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:19:56,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:56,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:56,622 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:56,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1009187068, now seen corresponding path program 1 times [2019-10-15 01:19:56,631 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:56,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136222737] [2019-10-15 01:19:56,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:56,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136222737] [2019-10-15 01:19:56,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:56,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:19:56,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438707930] [2019-10-15 01:19:56,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:19:56,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:56,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:19:56,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:19:56,730 INFO L87 Difference]: Start difference. First operand 377 states and 427 transitions. Second operand 8 states. [2019-10-15 01:19:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:56,773 INFO L93 Difference]: Finished difference Result 740 states and 860 transitions. [2019-10-15 01:19:56,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:19:56,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-10-15 01:19:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:56,777 INFO L225 Difference]: With dead ends: 740 [2019-10-15 01:19:56,777 INFO L226 Difference]: Without dead ends: 391 [2019-10-15 01:19:56,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:19:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-15 01:19:56,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 385. [2019-10-15 01:19:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-10-15 01:19:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 435 transitions. [2019-10-15 01:19:56,801 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 435 transitions. Word has length 89 [2019-10-15 01:19:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:56,801 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 435 transitions. [2019-10-15 01:19:56,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:19:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 435 transitions. [2019-10-15 01:19:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:19:56,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:56,803 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:56,803 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:56,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:56,804 INFO L82 PathProgramCache]: Analyzing trace with hash 716293829, now seen corresponding path program 1 times [2019-10-15 01:19:56,804 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:56,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923644952] [2019-10-15 01:19:56,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:56,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:56,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923644952] [2019-10-15 01:19:56,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:56,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:19:56,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819653709] [2019-10-15 01:19:56,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:19:56,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:56,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:19:56,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:19:56,881 INFO L87 Difference]: Start difference. First operand 385 states and 435 transitions. Second operand 4 states. [2019-10-15 01:19:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:57,103 INFO L93 Difference]: Finished difference Result 1162 states and 1382 transitions. [2019-10-15 01:19:57,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:19:57,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-10-15 01:19:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:57,109 INFO L225 Difference]: With dead ends: 1162 [2019-10-15 01:19:57,110 INFO L226 Difference]: Without dead ends: 805 [2019-10-15 01:19:57,112 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:19:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2019-10-15 01:19:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 517. [2019-10-15 01:19:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2019-10-15 01:19:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 580 transitions. [2019-10-15 01:19:57,153 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 580 transitions. Word has length 89 [2019-10-15 01:19:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:57,153 INFO L462 AbstractCegarLoop]: Abstraction has 517 states and 580 transitions. [2019-10-15 01:19:57,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:19:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 580 transitions. [2019-10-15 01:19:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-15 01:19:57,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:57,156 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:57,157 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -7624597, now seen corresponding path program 1 times [2019-10-15 01:19:57,157 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:57,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193810686] [2019-10-15 01:19:57,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:57,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:57,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:57,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193810686] [2019-10-15 01:19:57,241 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:19:57,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:19:57,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875597903] [2019-10-15 01:19:57,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:19:57,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:57,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:19:57,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:19:57,242 INFO L87 Difference]: Start difference. First operand 517 states and 580 transitions. Second operand 3 states. [2019-10-15 01:19:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:57,293 INFO L93 Difference]: Finished difference Result 796 states and 908 transitions. [2019-10-15 01:19:57,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:19:57,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-10-15 01:19:57,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:57,298 INFO L225 Difference]: With dead ends: 796 [2019-10-15 01:19:57,298 INFO L226 Difference]: Without dead ends: 793 [2019-10-15 01:19:57,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:19:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-15 01:19:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 662. [2019-10-15 01:19:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-15 01:19:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 753 transitions. [2019-10-15 01:19:57,341 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 753 transitions. Word has length 93 [2019-10-15 01:19:57,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:57,341 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 753 transitions. [2019-10-15 01:19:57,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:19:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 753 transitions. [2019-10-15 01:19:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 01:19:57,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:57,346 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:19:57,346 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1116069495, now seen corresponding path program 1 times [2019-10-15 01:19:57,347 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:57,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882401153] [2019-10-15 01:19:57,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:57,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:57,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:19:57,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882401153] [2019-10-15 01:19:57,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175907670] [2019-10-15 01:19:57,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:19:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:57,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:19:57,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:19:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:57,790 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:19:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:19:58,010 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:19:58,011 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-15 01:19:58,011 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541322574] [2019-10-15 01:19:58,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:19:58,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:58,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:19:58,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:19:58,012 INFO L87 Difference]: Start difference. First operand 662 states and 753 transitions. Second operand 3 states. [2019-10-15 01:19:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:58,089 INFO L93 Difference]: Finished difference Result 1108 states and 1269 transitions. [2019-10-15 01:19:58,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:19:58,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-15 01:19:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:58,095 INFO L225 Difference]: With dead ends: 1108 [2019-10-15 01:19:58,095 INFO L226 Difference]: Without dead ends: 602 [2019-10-15 01:19:58,097 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:19:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-15 01:19:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-15 01:19:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-15 01:19:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 674 transitions. [2019-10-15 01:19:58,150 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 674 transitions. Word has length 152 [2019-10-15 01:19:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:58,152 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 674 transitions. [2019-10-15 01:19:58,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:19:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 674 transitions. [2019-10-15 01:19:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:19:58,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:58,156 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:58,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:19:58,362 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2117638775, now seen corresponding path program 1 times [2019-10-15 01:19:58,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:58,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396281262] [2019-10-15 01:19:58,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:58,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:58,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:19:58,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396281262] [2019-10-15 01:19:58,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189777197] [2019-10-15 01:19:58,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:19:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:58,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:19:58,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:19:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:19:58,872 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:19:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:19:59,107 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:19:59,107 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2019-10-15 01:19:59,107 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63273780] [2019-10-15 01:19:59,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:19:59,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:59,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:19:59,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:19:59,109 INFO L87 Difference]: Start difference. First operand 602 states and 674 transitions. Second operand 5 states. [2019-10-15 01:19:59,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:59,828 INFO L93 Difference]: Finished difference Result 1528 states and 1860 transitions. [2019-10-15 01:19:59,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:19:59,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2019-10-15 01:19:59,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:59,836 INFO L225 Difference]: With dead ends: 1528 [2019-10-15 01:19:59,837 INFO L226 Difference]: Without dead ends: 1082 [2019-10-15 01:19:59,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:19:59,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2019-10-15 01:19:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 988. [2019-10-15 01:19:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2019-10-15 01:19:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1136 transitions. [2019-10-15 01:19:59,920 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1136 transitions. Word has length 154 [2019-10-15 01:19:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:59,921 INFO L462 AbstractCegarLoop]: Abstraction has 988 states and 1136 transitions. [2019-10-15 01:19:59,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:19:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1136 transitions. [2019-10-15 01:19:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:19:59,925 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:59,925 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:20:00,161 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:20:00,162 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:20:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:20:00,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1764550393, now seen corresponding path program 1 times [2019-10-15 01:20:00,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:20:00,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34740328] [2019-10-15 01:20:00,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:20:00,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:20:00,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:20:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:20:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:20:00,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34740328] [2019-10-15 01:20:00,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127477632] [2019-10-15 01:20:00,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:20:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:20:00,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-15 01:20:00,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:20:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:20:00,724 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:20:00,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:20:00,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:20:00,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:20:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:20:01,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:20:01,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 10] total 17 [2019-10-15 01:20:01,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848675918] [2019-10-15 01:20:01,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:20:01,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:20:01,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:20:01,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:20:01,072 INFO L87 Difference]: Start difference. First operand 988 states and 1136 transitions. Second operand 9 states. [2019-10-15 01:20:02,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:20:02,551 INFO L93 Difference]: Finished difference Result 2547 states and 3282 transitions. [2019-10-15 01:20:02,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:20:02,552 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2019-10-15 01:20:02,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:20:02,568 INFO L225 Difference]: With dead ends: 2547 [2019-10-15 01:20:02,568 INFO L226 Difference]: Without dead ends: 1719 [2019-10-15 01:20:02,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:20:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2019-10-15 01:20:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1358. [2019-10-15 01:20:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2019-10-15 01:20:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1578 transitions. [2019-10-15 01:20:02,686 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1578 transitions. Word has length 154 [2019-10-15 01:20:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:20:02,686 INFO L462 AbstractCegarLoop]: Abstraction has 1358 states and 1578 transitions. [2019-10-15 01:20:02,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:20:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1578 transitions. [2019-10-15 01:20:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:20:02,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:20:02,690 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:20:02,898 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:20:02,899 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:20:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:20:02,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1836936951, now seen corresponding path program 1 times [2019-10-15 01:20:02,900 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:20:02,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705648297] [2019-10-15 01:20:02,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:20:02,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:20:02,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:20:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:20:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:20:03,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705648297] [2019-10-15 01:20:03,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:20:03,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:20:03,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247717965] [2019-10-15 01:20:03,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:20:03,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:20:03,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:20:03,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:20:03,055 INFO L87 Difference]: Start difference. First operand 1358 states and 1578 transitions. Second operand 9 states. [2019-10-15 01:20:03,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:20:03,148 INFO L93 Difference]: Finished difference Result 1841 states and 2143 transitions. [2019-10-15 01:20:03,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:20:03,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2019-10-15 01:20:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:20:03,150 INFO L225 Difference]: With dead ends: 1841 [2019-10-15 01:20:03,150 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:20:03,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:20:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:20:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:20:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:20:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:20:03,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2019-10-15 01:20:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:20:03,156 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:20:03,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:20:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:20:03,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:20:03,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:20:04,256 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 28 [2019-10-15 01:20:04,520 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 30 [2019-10-15 01:20:04,791 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2019-10-15 01:20:04,999 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2019-10-15 01:20:05,208 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 25 [2019-10-15 01:20:05,352 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 27 [2019-10-15 01:20:05,534 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-10-15 01:20:05,779 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 29 [2019-10-15 01:20:05,990 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 27 [2019-10-15 01:20:06,163 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2019-10-15 01:20:06,329 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 27 [2019-10-15 01:20:06,684 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-10-15 01:20:06,906 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2019-10-15 01:20:07,198 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2019-10-15 01:20:07,451 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 33 [2019-10-15 01:20:07,692 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-10-15 01:20:07,936 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2019-10-15 01:20:08,306 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 34 [2019-10-15 01:20:08,563 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 39 [2019-10-15 01:20:08,838 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 34 [2019-10-15 01:20:09,095 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 34 [2019-10-15 01:20:09,234 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 24 [2019-10-15 01:20:09,237 INFO L443 ceAbstractionStarter]: For program point L705(lines 682 706) no Hoare annotation was computed. [2019-10-15 01:20:09,237 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 658 713) no Hoare annotation was computed. [2019-10-15 01:20:09,237 INFO L443 ceAbstractionStarter]: For program point L689(lines 689 693) no Hoare annotation was computed. [2019-10-15 01:20:09,237 INFO L443 ceAbstractionStarter]: For program point L689-1(lines 689 693) no Hoare annotation was computed. [2019-10-15 01:20:09,237 INFO L443 ceAbstractionStarter]: For program point L684(line 684) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point L683-2(lines 683 704) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 658 713) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 658 713) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point L766(lines 739 767) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point L759(line 759) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point L759-1(line 759) no Hoare annotation was computed. [2019-10-15 01:20:09,238 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 714 773) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 714 773) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point L746(lines 746 750) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 714 773) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point L746-1(lines 746 750) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point L741(line 741) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L443 ceAbstractionStarter]: For program point L740-2(lines 740 765) no Hoare annotation was computed. [2019-10-15 01:20:09,239 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2019-10-15 01:20:09,240 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2019-10-15 01:20:09,240 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2019-10-15 01:20:09,240 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2019-10-15 01:20:09,240 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2019-10-15 01:20:09,240 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 157 179) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,240 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 157 179) no Hoare annotation was computed. [2019-10-15 01:20:09,240 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 157 179) no Hoare annotation was computed. [2019-10-15 01:20:09,240 INFO L439 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,241 INFO L439 ceAbstractionStarter]: At program point L169-1(line 169) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,241 INFO L443 ceAbstractionStarter]: For program point L167(lines 167 174) no Hoare annotation was computed. [2019-10-15 01:20:09,241 INFO L443 ceAbstractionStarter]: For program point L167-1(lines 167 174) no Hoare annotation was computed. [2019-10-15 01:20:09,241 INFO L443 ceAbstractionStarter]: For program point L165(line 165) no Hoare annotation was computed. [2019-10-15 01:20:09,265 INFO L439 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,265 INFO L439 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,266 INFO L439 ceAbstractionStarter]: At program point L163-1(line 163) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L129(line 129) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 113 136) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L126(line 126) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 113 136) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 113 136) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-10-15 01:20:09,266 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L119(line 119) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 447 455) no Hoare annotation was computed. [2019-10-15 01:20:09,267 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 447 455) the Hoare annotation is: true [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 447 455) no Hoare annotation was computed. [2019-10-15 01:20:09,268 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 511 529) the Hoare annotation is: true [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point L520(lines 520 524) no Hoare annotation was computed. [2019-10-15 01:20:09,268 INFO L446 ceAbstractionStarter]: At program point L518(line 518) the Hoare annotation is: true [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point L520-2(lines 520 524) no Hoare annotation was computed. [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 511 529) no Hoare annotation was computed. [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point L518-1(line 518) no Hoare annotation was computed. [2019-10-15 01:20:09,268 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 511 529) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L475(lines 475 483) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L475-2(lines 475 483) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L463(lines 463 471) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 456 491) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L463-2(lines 463 471) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 456 491) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L486(line 486) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point L486-1(line 486) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 456 491) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2019-10-15 01:20:09,269 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 612 657) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 612 657) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 612 657) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 925 970) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point L945(lines 945 952) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point L939(lines 939 959) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 925 970) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point L939-1(lines 939 959) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 925 970) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 146 156) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,270 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 146 156) no Hoare annotation was computed. [2019-10-15 01:20:09,270 INFO L439 ceAbstractionStarter]: At program point L151(line 151) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 146 156) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmENTRY(lines 436 446) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 436 446) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point L441(line 441) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point L441-1(line 441) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 436 446) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L439 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 428 435) the Hoare annotation is: (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 428 435) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 428 435) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point L311(lines 311 317) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 307 320) no Hoare annotation was computed. [2019-10-15 01:20:09,271 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 307 320) the Hoare annotation is: true [2019-10-15 01:20:09,271 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 307 320) no Hoare annotation was computed. [2019-10-15 01:20:09,272 INFO L439 ceAbstractionStarter]: At program point L414(line 414) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 .cse1))) [2019-10-15 01:20:09,272 INFO L443 ceAbstractionStarter]: For program point L414-1(lines 395 419) no Hoare annotation was computed. [2019-10-15 01:20:09,272 INFO L439 ceAbstractionStarter]: At program point L409(line 409) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse2))) [2019-10-15 01:20:09,272 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 395 419) no Hoare annotation was computed. [2019-10-15 01:20:09,272 INFO L439 ceAbstractionStarter]: At program point L405(line 405) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment_~tmp~3))) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-15 01:20:09,272 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 395 419) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or (or .cse2 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse0 .cse3) (or .cse0 (or .cse2 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-15 01:20:09,272 INFO L443 ceAbstractionStarter]: For program point L403(lines 403 411) no Hoare annotation was computed. [2019-10-15 01:20:09,272 INFO L439 ceAbstractionStarter]: At program point L401(line 401) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse2) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point L401-1(line 401) no Hoare annotation was computed. [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point L399(lines 399 416) no Hoare annotation was computed. [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 361 367) no Hoare annotation was computed. [2019-10-15 01:20:09,273 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 361 367) the Hoare annotation is: true [2019-10-15 01:20:09,273 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 539 604) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 539 604) no Hoare annotation was computed. [2019-10-15 01:20:09,273 INFO L439 ceAbstractionStarter]: At program point L597(lines 548 598) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point L587(lines 587 591) no Hoare annotation was computed. [2019-10-15 01:20:09,273 INFO L439 ceAbstractionStarter]: At program point L587-2(lines 579 592) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 .cse1 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-10-15 01:20:09,273 INFO L443 ceAbstractionStarter]: For program point L550(lines 549 596) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L439 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 .cse1 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L579(lines 579 592) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L439 ceAbstractionStarter]: At program point L571(line 571) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (and (and .cse0 .cse1 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0)) (<= 1 ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L569(lines 569 575) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L569-1(lines 569 575) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L439 ceAbstractionStarter]: At program point L594(lines 549 596) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 .cse1 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-10-15 01:20:09,274 INFO L439 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0))) (or (not (= |old(~systemActive~0)| 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse0 .cse1 (= ~pumpRunning~0 0)) (= 0 ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse1))) [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L559(lines 559 565) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 559 565) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L551(lines 551 555) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 539 604) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L893(lines 893 913) no Hoare annotation was computed. [2019-10-15 01:20:09,274 INFO L443 ceAbstractionStarter]: For program point L893-1(lines 893 913) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 879 924) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 879 924) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 879 924) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point L899(lines 899 906) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 321 329) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 321 329) the Hoare annotation is: true [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 321 329) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L439 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 193 221) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 ~waterLevel~0)) .cse0 .cse2))) [2019-10-15 01:20:09,275 INFO L439 ceAbstractionStarter]: At program point L208(line 208) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~pumpRunning~0))) (.cse1 (not (<= 2 ~waterLevel~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (or (or (not (= 0 ~pumpRunning~0)) .cse2) (not (<= 1 ~waterLevel~0))) (or .cse0 .cse1 (or .cse2 (not (= ~methaneLevelCritical~0 0)))))) [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point L206(lines 206 212) no Hoare annotation was computed. [2019-10-15 01:20:09,275 INFO L443 ceAbstractionStarter]: For program point L205(lines 205 215) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L439 ceAbstractionStarter]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse6 (not (<= 2 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1)) .cse3) (or (or .cse0 .cse1 .cse4) (not (<= 1 ~waterLevel~0))) (or .cse5 .cse6 (or .cse1 .cse4)) (or .cse5 .cse2 .cse6 .cse1 .cse3))) [2019-10-15 01:20:09,276 INFO L443 ceAbstractionStarter]: For program point L203-1(line 203) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L443 ceAbstractionStarter]: For program point L201(lines 201 218) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L443 ceAbstractionStarter]: For program point L201-1(lines 193 221) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L439 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (not (<= 2 ~waterLevel~0)) .cse0 .cse2))) [2019-10-15 01:20:09,276 INFO L443 ceAbstractionStarter]: For program point L199-1(line 199) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__2EXIT(lines 193 221) no Hoare annotation was computed. [2019-10-15 01:20:09,276 INFO L439 ceAbstractionStarter]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 185 192) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= 0 ~methAndRunningLastTime~0) (not (= ~systemActive~0 1)) (not (= ~waterLevel~0 1)) (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~methaneLevelCritical~0 0))) [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1FINAL(lines 185 192) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification2_spec__1EXIT(lines 185 192) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 291) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point L283-2(lines 283 291) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 275 297) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 275 297) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 275 297) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2019-10-15 01:20:09,277 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L865(lines 865 872) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 776 878) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L826(lines 825 845) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L857(line 857) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L857-1(line 857) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L822(lines 822 863) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L841(line 841) no Hoare annotation was computed. [2019-10-15 01:20:09,278 INFO L443 ceAbstractionStarter]: For program point L841-1(line 841) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 776 878) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L800(lines 800 804) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L864(lines 864 875) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L827(lines 827 831) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L825-2(lines 825 845) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 776 878) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L846(lines 824 847) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point L805(lines 805 821) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,279 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point activatePumpFINAL(lines 420 427) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 420 427) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L439 ceAbstractionStarter]: At program point activatePumpENTRY(lines 420 427) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (not (<= 2 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse1 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point getWaterLevelENTRY(lines 298 306) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 298 306) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 298 306) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 492 510) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 492 510) the Hoare annotation is: true [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point L501(lines 501 505) no Hoare annotation was computed. [2019-10-15 01:20:09,280 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 492 510) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L446 ceAbstractionStarter]: At program point L499(line 499) the Hoare annotation is: true [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point L501-2(lines 501 505) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point L499-1(line 499) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point L258-1(lines 254 265) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L439 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 254 265) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (<= 1 ~pumpRunning~0)) (not (<= 2 ~waterLevel~0)) (or .cse0 .cse1) .cse2 .cse3) (or (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1) (not (<= 1 ~waterLevel~0)) .cse3 .cse2))) [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 254 265) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,281 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,282 INFO L439 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= 0 ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 |old(~waterLevel~0)|)) (or .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 .cse5) (or .cse4 .cse1 .cse5 .cse2 .cse3))) [2019-10-15 01:20:09,282 INFO L439 ceAbstractionStarter]: At program point L348(lines 348 354) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~methAndRunningLastTime~0)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (not (= ~systemActive~0 1)))) (and (let ((.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (or .cse2 .cse3) .cse4 (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) .cse5 .cse1))) (or .cse2 .cse3 (and (= 1 ~waterLevel~0) .cse5) (not (= |old(~waterLevel~0)| 1)) .cse4) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2019-10-15 01:20:09,282 INFO L439 ceAbstractionStarter]: At program point L343(line 343) the Hoare annotation is: (let ((.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or (not (<= 1 |old(~waterLevel~0)|)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0) .cse1) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse3) (or .cse2 (= 0 ~methAndRunningLastTime~0) .cse0 .cse3 .cse1))) [2019-10-15 01:20:09,282 INFO L443 ceAbstractionStarter]: For program point L341(lines 340 359) no Hoare annotation was computed. [2019-10-15 01:20:09,282 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 337 360) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 |old(~waterLevel~0)|)) (or .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse3 .cse4) .cse2) (or .cse5 .cse1 .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4)) (or .cse5 .cse3 .cse1 .cse6 .cse2))) [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 337 360) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 337 360) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 80 109) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 98) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L446 ceAbstractionStarter]: At program point L94-1(lines 94 98) the Hoare annotation is: true [2019-10-15 01:20:09,283 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 80 109) the Hoare annotation is: true [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L446 ceAbstractionStarter]: At program point L90-2(lines 90 104) the Hoare annotation is: true [2019-10-15 01:20:09,283 INFO L446 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2019-10-15 01:20:09,283 INFO L446 ceAbstractionStarter]: At program point L105(lines 80 109) the Hoare annotation is: true [2019-10-15 01:20:09,283 INFO L443 ceAbstractionStarter]: For program point L101(line 101) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 266 274) the Hoare annotation is: true [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 266 274) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 266 274) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L439 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 230 241) the Hoare annotation is: (or (not (<= 1 ~pumpRunning~0)) (<= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|)) (not (= ~systemActive~0 1))) [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 230 241) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point L234-1(lines 230 241) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 137 143) no Hoare annotation was computed. [2019-10-15 01:20:09,284 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 137 143) the Hoare annotation is: true [2019-10-15 01:20:09,284 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,285 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) (= 0 ~methAndRunningLastTime~0)) [2019-10-15 01:20:09,285 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:20:09,285 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:20:09,285 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 530 537) no Hoare annotation was computed. [2019-10-15 01:20:09,285 INFO L439 ceAbstractionStarter]: At program point startSystemENTRY(lines 530 537) the Hoare annotation is: (let ((.cse0 (not (= |old(~systemActive~0)| 1))) (.cse1 (= 1 ~systemActive~0))) (and (or (not (<= 1 ~waterLevel~0)) (or (not (= 0 ~pumpRunning~0)) .cse0) .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (not (<= 1 ~pumpRunning~0)) .cse0 (not (<= 2 ~waterLevel~0)) .cse1))) [2019-10-15 01:20:09,285 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 530 537) no Hoare annotation was computed. [2019-10-15 01:20:09,285 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 369 393) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-15 01:20:09,285 INFO L439 ceAbstractionStarter]: At program point L383(line 383) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 (or .cse2 .cse3) (not (= ~methAndRunningLastTime~0 0))) (or (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) .cse1 .cse0))) [2019-10-15 01:20:09,285 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 369 393) no Hoare annotation was computed. [2019-10-15 01:20:09,285 INFO L439 ceAbstractionStarter]: At program point L379(line 379) the Hoare annotation is: (let ((.cse2 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0))) (.cse3 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 .cse3 (or .cse0 .cse1) (not (= ~methAndRunningLastTime~0 0))))) [2019-10-15 01:20:09,285 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 385) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L439 ceAbstractionStarter]: At program point L375(line 375) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (= ~pumpRunning~0 0))) (and (or (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) .cse2 .cse3) (or .cse2 (or .cse0 .cse1) .cse3 (not (= ~methAndRunningLastTime~0 0))))) [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point L375-1(line 375) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 390) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L439 ceAbstractionStarter]: At program point L388(line 388) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 (or .cse1 .cse2) (not (= ~methAndRunningLastTime~0 0))) (or (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse0))) [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point L388-1(lines 369 393) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 242 253) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point L246-1(lines 242 253) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L439 ceAbstractionStarter]: At program point waterRiseENTRY(lines 242 253) the Hoare annotation is: (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1)) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 .cse3 .cse4) (or .cse4 (or .cse0 .cse1) .cse3 .cse2))) [2019-10-15 01:20:09,286 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 972 979) no Hoare annotation was computed. [2019-10-15 01:20:09,286 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 972 979) the Hoare annotation is: true [2019-10-15 01:20:09,287 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2019-10-15 01:20:09,287 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 972 979) no Hoare annotation was computed. [2019-10-15 01:20:09,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:20:09 BoogieIcfgContainer [2019-10-15 01:20:09,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:20:09,306 INFO L168 Benchmark]: Toolchain (without parser) took 18434.46 ms. Allocated memory was 137.9 MB in the beginning and 532.2 MB in the end (delta: 394.3 MB). Free memory was 101.3 MB in the beginning and 481.0 MB in the end (delta: -379.6 MB). Peak memory consumption was 411.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,307 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 169.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,308 INFO L168 Benchmark]: Boogie Preprocessor took 108.45 ms. Allocated memory is still 201.3 MB. Free memory was 169.1 MB in the beginning and 165.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,309 INFO L168 Benchmark]: RCFGBuilder took 1229.43 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 165.0 MB in the beginning and 195.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,310 INFO L168 Benchmark]: TraceAbstraction took 16367.86 ms. Allocated memory was 233.3 MB in the beginning and 532.2 MB in the end (delta: 298.8 MB). Free memory was 195.7 MB in the beginning and 481.0 MB in the end (delta: -285.3 MB). Peak memory consumption was 410.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:20:09,313 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 169.1 MB in the end (delta: -68.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.45 ms. Allocated memory is still 201.3 MB. Free memory was 169.1 MB in the beginning and 165.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1229.43 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 165.0 MB in the beginning and 195.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16367.86 ms. Allocated memory was 233.3 MB in the beginning and 532.2 MB in the end (delta: 298.8 MB). Free memory was 195.7 MB in the beginning and 481.0 MB in the end (delta: -285.3 MB). Peak memory consumption was 410.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 976]: 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: 549]: Loop Invariant Derived loop invariant: (((((!(\old(systemActive) == 1) || !(\old(methAndRunningLastTime) == 0)) || !(0 == \old(pumpRunning))) || ((((1 == systemActive && 0 == splverifierCounter) && pumpRunning == 0) && 0 == methAndRunningLastTime) && \old(waterLevel) <= waterLevel)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((1 == systemActive && 1 <= pumpRunning) && 2 <= waterLevel) && 0 == splverifierCounter) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 244 locations, 1 error locations. Result: SAFE, OverallTime: 16.2s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, HoareTripleCheckerStatistics: 2340 SDtfs, 1628 SDslu, 4461 SDs, 0 SdLazy, 2535 SolverSat, 651 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1066 GetRequests, 969 SyntacticMatches, 5 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1358occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 937 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 2142 PreInvPairs, 2227 NumberOfFragments, 1937 HoareAnnotationTreeSize, 2142 FomulaSimplifications, 17966 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 62 FomulaSimplificationsInter, 20017 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1836 NumberOfCodeBlocks, 1836 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2276 ConstructedInterpolants, 0 QuantifiedInterpolants, 459462 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2784 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 389/417 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...