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_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:22:53,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:22:53,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:22:53,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:22:53,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:22:53,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:22:53,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:22:53,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:22:53,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:22:53,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:22:53,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:22:53,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:22:53,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:22:53,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:22:53,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:22:53,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:22:53,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:22:53,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:22:53,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:22:53,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:22:53,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:22:53,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:22:53,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:22:53,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:22:53,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:22:53,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:22:53,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:22:53,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:22:53,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:22:53,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:22:53,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:22:53,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:22:53,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:22:53,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:22:53,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:22:53,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:22:53,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:22:53,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:22:53,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:22:53,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:22:53,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:22:53,752 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 [2019-10-13 21:22:53,767 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:22:53,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:22:53,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:22:53,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:22:53,769 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:22:53,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:22:53,769 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:22:53,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:22:53,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:22:53,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:22:53,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:22:53,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:22:53,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:22:53,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:22:53,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:22:53,772 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:22:53,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:22:53,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:22:53,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:22:53,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:22:53,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:22:53,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:22:53,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:22:53,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:22:53,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:22:53,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:22:53,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:22:53,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:22:53,775 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 [2019-10-13 21:22:54,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:22:54,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:22:54,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:22:54,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:22:54,156 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:22:54,157 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2019-10-13 21:22:54,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3c51464f/b0247a42d24d49a4839ef4998f28eb52/FLAGc19931a24 [2019-10-13 21:22:54,808 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:22:54,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2019-10-13 21:22:54,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3c51464f/b0247a42d24d49a4839ef4998f28eb52/FLAGc19931a24 [2019-10-13 21:22:55,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3c51464f/b0247a42d24d49a4839ef4998f28eb52 [2019-10-13 21:22:55,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:22:55,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:22:55,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:55,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:22:55,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:22:55,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a33d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55, skipping insertion in model container [2019-10-13 21:22:55,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:22:55,265 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:22:55,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:55,742 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:22:55,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:55,939 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:22:55,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55 WrapperNode [2019-10-13 21:22:55,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:55,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:22:55,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:22:55,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:22:55,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:56,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:56,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:56,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:56,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:22:56,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:22:56,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:22:56,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:22:56,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (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 [2019-10-13 21:22:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:22:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:22:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:22:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:22:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:22:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:22:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:22:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:22:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:22:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:22:56,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:56,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:22:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:22:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:22:56,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:22:56,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:22:56,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:22:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:22:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:22:56,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:22:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:22:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:22:56,144 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:22:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:22:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:22:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:22:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:22:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:22:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:22:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:22:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:22:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:22:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:22:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:22:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:22:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:22:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:22:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:22:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:22:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:22:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:22:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:22:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:22:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:22:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:22:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:22:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:22:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:22:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:22:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:22:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:22:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:22:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:22:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:22:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:22:57,368 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:22:57,369 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:22:57,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:57 BoogieIcfgContainer [2019-10-13 21:22:57,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:22:57,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:22:57,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:22:57,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:22:57,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:22:55" (1/3) ... [2019-10-13 21:22:57,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f90b76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:57, skipping insertion in model container [2019-10-13 21:22:57,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:55" (2/3) ... [2019-10-13 21:22:57,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f90b76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:22:57, skipping insertion in model container [2019-10-13 21:22:57,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:57" (3/3) ... [2019-10-13 21:22:57,380 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2019-10-13 21:22:57,390 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:22:57,400 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:22:57,411 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:22:57,447 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:22:57,447 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:22:57,448 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:22:57,448 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:22:57,448 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:22:57,449 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:22:57,449 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:22:57,449 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:22:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-13 21:22:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 21:22:57,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:57,492 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:57,494 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:57,498 INFO L82 PathProgramCache]: Analyzing trace with hash 479094946, now seen corresponding path program 1 times [2019-10-13 21:22:57,508 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:57,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433428898] [2019-10-13 21:22:57,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:57,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:57,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:22:57,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433428898] [2019-10-13 21:22:57,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:57,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:22:57,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881129070] [2019-10-13 21:22:57,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:57,908 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:57,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:57,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:57,929 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-10-13 21:22:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:57,985 INFO L93 Difference]: Finished difference Result 302 states and 369 transitions. [2019-10-13 21:22:57,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:57,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-13 21:22:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:58,001 INFO L225 Difference]: With dead ends: 302 [2019-10-13 21:22:58,001 INFO L226 Difference]: Without dead ends: 153 [2019-10-13 21:22:58,007 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 [2019-10-13 21:22:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-13 21:22:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-13 21:22:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-13 21:22:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2019-10-13 21:22:58,063 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 59 [2019-10-13 21:22:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:58,063 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2019-10-13 21:22:58,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2019-10-13 21:22:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 21:22:58,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:58,069 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:58,070 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:58,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1126861649, now seen corresponding path program 1 times [2019-10-13 21:22:58,071 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:58,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686689252] [2019-10-13 21:22:58,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:22:58,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686689252] [2019-10-13 21:22:58,268 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:58,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:58,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553926065] [2019-10-13 21:22:58,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:58,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:58,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:58,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:58,272 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 7 states. [2019-10-13 21:22:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:58,711 INFO L93 Difference]: Finished difference Result 278 states and 331 transitions. [2019-10-13 21:22:58,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:58,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-13 21:22:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:58,715 INFO L225 Difference]: With dead ends: 278 [2019-10-13 21:22:58,715 INFO L226 Difference]: Without dead ends: 153 [2019-10-13 21:22:58,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:58,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-13 21:22:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-13 21:22:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-13 21:22:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2019-10-13 21:22:58,739 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 64 [2019-10-13 21:22:58,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:58,741 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2019-10-13 21:22:58,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:22:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2019-10-13 21:22:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 21:22:58,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:58,745 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:58,746 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1745445590, now seen corresponding path program 1 times [2019-10-13 21:22:58,747 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:58,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579971349] [2019-10-13 21:22:58,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:22:58,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579971349] [2019-10-13 21:22:58,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:58,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:22:58,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138576457] [2019-10-13 21:22:58,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:58,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:58,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:58,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:22:58,947 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 5 states. [2019-10-13 21:22:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:59,688 INFO L93 Difference]: Finished difference Result 419 states and 529 transitions. [2019-10-13 21:22:59,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:22:59,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-10-13 21:22:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:59,694 INFO L225 Difference]: With dead ends: 419 [2019-10-13 21:22:59,699 INFO L226 Difference]: Without dead ends: 294 [2019-10-13 21:22:59,703 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 [2019-10-13 21:22:59,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-10-13 21:22:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 259. [2019-10-13 21:22:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-13 21:22:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2019-10-13 21:22:59,742 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 77 [2019-10-13 21:22:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:59,743 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2019-10-13 21:22:59,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2019-10-13 21:22:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 21:22:59,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:59,747 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:22:59,747 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:59,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:59,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1775922839, now seen corresponding path program 1 times [2019-10-13 21:22:59,748 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:59,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619343423] [2019-10-13 21:22:59,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:59,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:59,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:59,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:22:59,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619343423] [2019-10-13 21:22:59,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:59,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:59,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802298803] [2019-10-13 21:22:59,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:59,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:59,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:59,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:59,963 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand 7 states. [2019-10-13 21:23:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:00,861 INFO L93 Difference]: Finished difference Result 514 states and 639 transitions. [2019-10-13 21:23:00,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:23:00,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2019-10-13 21:23:00,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:00,868 INFO L225 Difference]: With dead ends: 514 [2019-10-13 21:23:00,868 INFO L226 Difference]: Without dead ends: 283 [2019-10-13 21:23:00,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:23:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2019-10-13 21:23:00,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 258. [2019-10-13 21:23:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-13 21:23:00,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 306 transitions. [2019-10-13 21:23:00,896 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 306 transitions. Word has length 91 [2019-10-13 21:23:00,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:00,897 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 306 transitions. [2019-10-13 21:23:00,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:23:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 306 transitions. [2019-10-13 21:23:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 21:23:00,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:00,900 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:00,901 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:00,901 INFO L82 PathProgramCache]: Analyzing trace with hash 534241489, now seen corresponding path program 1 times [2019-10-13 21:23:00,901 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:00,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310698910] [2019-10-13 21:23:00,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:00,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310698910] [2019-10-13 21:23:00,984 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:00,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:23:00,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480304908] [2019-10-13 21:23:00,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:23:00,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:00,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:23:00,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:23:00,987 INFO L87 Difference]: Start difference. First operand 258 states and 306 transitions. Second operand 3 states. [2019-10-13 21:23:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,002 INFO L93 Difference]: Finished difference Result 422 states and 483 transitions. [2019-10-13 21:23:01,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:23:01,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2019-10-13 21:23:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,006 INFO L225 Difference]: With dead ends: 422 [2019-10-13 21:23:01,006 INFO L226 Difference]: Without dead ends: 228 [2019-10-13 21:23:01,007 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 [2019-10-13 21:23:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-10-13 21:23:01,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-10-13 21:23:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-10-13 21:23:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 259 transitions. [2019-10-13 21:23:01,027 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 259 transitions. Word has length 103 [2019-10-13 21:23:01,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,028 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 259 transitions. [2019-10-13 21:23:01,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:23:01,028 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 259 transitions. [2019-10-13 21:23:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 21:23:01,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,031 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:01,031 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1230791863, now seen corresponding path program 1 times [2019-10-13 21:23:01,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066531016] [2019-10-13 21:23:01,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:01,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066531016] [2019-10-13 21:23:01,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:01,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:23:01,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186251000] [2019-10-13 21:23:01,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:23:01,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:01,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:23:01,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:23:01,188 INFO L87 Difference]: Start difference. First operand 228 states and 259 transitions. Second operand 6 states. [2019-10-13 21:23:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,227 INFO L93 Difference]: Finished difference Result 435 states and 506 transitions. [2019-10-13 21:23:01,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:23:01,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2019-10-13 21:23:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,230 INFO L225 Difference]: With dead ends: 435 [2019-10-13 21:23:01,231 INFO L226 Difference]: Without dead ends: 235 [2019-10-13 21:23:01,232 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 [2019-10-13 21:23:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-10-13 21:23:01,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2019-10-13 21:23:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-13 21:23:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 264 transitions. [2019-10-13 21:23:01,270 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 264 transitions. Word has length 107 [2019-10-13 21:23:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,270 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 264 transitions. [2019-10-13 21:23:01,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:23:01,270 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 264 transitions. [2019-10-13 21:23:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 21:23:01,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,276 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:01,276 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,276 INFO L82 PathProgramCache]: Analyzing trace with hash 697480839, now seen corresponding path program 1 times [2019-10-13 21:23:01,277 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204161086] [2019-10-13 21:23:01,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:01,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204161086] [2019-10-13 21:23:01,415 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:01,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:23:01,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186378139] [2019-10-13 21:23:01,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:23:01,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:01,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:23:01,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:23:01,422 INFO L87 Difference]: Start difference. First operand 233 states and 264 transitions. Second operand 8 states. [2019-10-13 21:23:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,480 INFO L93 Difference]: Finished difference Result 445 states and 517 transitions. [2019-10-13 21:23:01,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:23:01,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2019-10-13 21:23:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,483 INFO L225 Difference]: With dead ends: 445 [2019-10-13 21:23:01,483 INFO L226 Difference]: Without dead ends: 240 [2019-10-13 21:23:01,484 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 [2019-10-13 21:23:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-10-13 21:23:01,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2019-10-13 21:23:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2019-10-13 21:23:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2019-10-13 21:23:01,513 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 107 [2019-10-13 21:23:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,514 INFO L462 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2019-10-13 21:23:01,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:23:01,514 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2019-10-13 21:23:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 21:23:01,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,522 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:01,522 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash 456940710, now seen corresponding path program 1 times [2019-10-13 21:23:01,523 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796008803] [2019-10-13 21:23:01,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:01,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796008803] [2019-10-13 21:23:01,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:01,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:23:01,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548696974] [2019-10-13 21:23:01,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:23:01,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:01,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:23:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:23:01,694 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand 4 states. [2019-10-13 21:23:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,935 INFO L93 Difference]: Finished difference Result 673 states and 799 transitions. [2019-10-13 21:23:01,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:23:01,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2019-10-13 21:23:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,939 INFO L225 Difference]: With dead ends: 673 [2019-10-13 21:23:01,939 INFO L226 Difference]: Without dead ends: 464 [2019-10-13 21:23:01,941 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 [2019-10-13 21:23:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-13 21:23:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 455. [2019-10-13 21:23:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 21:23:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 530 transitions. [2019-10-13 21:23:01,973 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 530 transitions. Word has length 107 [2019-10-13 21:23:01,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,973 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 530 transitions. [2019-10-13 21:23:01,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:23:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 530 transitions. [2019-10-13 21:23:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-13 21:23:01,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,976 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:01,976 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1562894580, now seen corresponding path program 1 times [2019-10-13 21:23:01,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520558347] [2019-10-13 21:23:01,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 21:23:02,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520558347] [2019-10-13 21:23:02,156 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:02,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:23:02,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090978336] [2019-10-13 21:23:02,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:23:02,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:02,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:23:02,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:23:02,158 INFO L87 Difference]: Start difference. First operand 455 states and 530 transitions. Second operand 9 states. [2019-10-13 21:23:03,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:03,294 INFO L93 Difference]: Finished difference Result 1194 states and 1455 transitions. [2019-10-13 21:23:03,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:23:03,295 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2019-10-13 21:23:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:03,303 INFO L225 Difference]: With dead ends: 1194 [2019-10-13 21:23:03,303 INFO L226 Difference]: Without dead ends: 835 [2019-10-13 21:23:03,306 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:23:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-13 21:23:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 762. [2019-10-13 21:23:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2019-10-13 21:23:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 877 transitions. [2019-10-13 21:23:03,360 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 877 transitions. Word has length 111 [2019-10-13 21:23:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:03,363 INFO L462 AbstractCegarLoop]: Abstraction has 762 states and 877 transitions. [2019-10-13 21:23:03,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:23:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 877 transitions. [2019-10-13 21:23:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 21:23:03,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:03,369 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:23:03,370 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:03,370 INFO L82 PathProgramCache]: Analyzing trace with hash 903450751, now seen corresponding path program 1 times [2019-10-13 21:23:03,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:03,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670339394] [2019-10-13 21:23:03,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:03,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 21:23:03,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670339394] [2019-10-13 21:23:03,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403557949] [2019-10-13 21:23:03,548 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 [2019-10-13 21:23:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:23:03,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:23:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:23:03,999 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:23:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 21:23:04,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [381049556] [2019-10-13 21:23:04,462 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 173 [2019-10-13 21:23:04,509 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:23:04,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:23:04,583 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:23:04,585 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 70 root evaluator evaluations with a maximum evaluation depth of 0. Performed 70 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-13 21:23:04,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:04,590 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:23:04,655 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:23:04,655 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:23:04,660 INFO L553 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-10-13 21:23:04,660 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:23:04,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:23:04,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11, 7, 7] total 19 [2019-10-13 21:23:04,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640915943] [2019-10-13 21:23:04,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:23:04,663 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:04,666 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:23:04,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:23:04,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:04,667 INFO L87 Difference]: Start difference. First operand 762 states and 877 transitions. Second operand 2 states. [2019-10-13 21:23:04,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:04,678 INFO L93 Difference]: Finished difference Result 762 states and 877 transitions. [2019-10-13 21:23:04,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:23:04,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-13 21:23:04,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:04,679 INFO L225 Difference]: With dead ends: 762 [2019-10-13 21:23:04,679 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:23:04,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:04,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:23:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:23:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:23:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:23:04,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-10-13 21:23:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:04,684 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:23:04,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:23:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:23:04,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:23:04,885 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:23:04,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:23:05,197 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 386) no Hoare annotation was computed. [2019-10-13 21:23:05,197 INFO L443 ceAbstractionStarter]: For program point L382-1(lines 382 386) no Hoare annotation was computed. [2019-10-13 21:23:05,197 INFO L443 ceAbstractionStarter]: For program point L377(line 377) no Hoare annotation was computed. [2019-10-13 21:23:05,197 INFO L443 ceAbstractionStarter]: For program point L376-2(lines 376 397) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 351 406) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point L398(lines 375 399) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 351 406) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 351 406) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point L439(lines 439 443) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 407 466) no Hoare annotation was computed. [2019-10-13 21:23:05,198 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point L433-2(lines 433 458) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 407 466) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point L459(lines 432 460) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 407 466) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L443 ceAbstractionStarter]: For program point L452-1(line 452) no Hoare annotation was computed. [2019-10-13 21:23:05,199 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2019-10-13 21:23:05,200 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2019-10-13 21:23:05,200 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2019-10-13 21:23:05,200 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2019-10-13 21:23:05,200 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2019-10-13 21:23:05,200 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 667 674) the Hoare annotation is: true [2019-10-13 21:23:05,200 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1EXIT(lines 667 674) no Hoare annotation was computed. [2019-10-13 21:23:05,200 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1FINAL(lines 667 674) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 675 684) the Hoare annotation is: true [2019-10-13 21:23:05,201 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2EXIT(lines 675 684) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L443 ceAbstractionStarter]: For program point L680(line 680) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2FINAL(lines 675 684) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L446 ceAbstractionStarter]: At program point L700(line 700) the Hoare annotation is: true [2019-10-13 21:23:05,201 INFO L443 ceAbstractionStarter]: For program point L698(lines 698 704) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L443 ceAbstractionStarter]: For program point L697(lines 697 707) no Hoare annotation was computed. [2019-10-13 21:23:05,201 INFO L446 ceAbstractionStarter]: At program point L695(line 695) the Hoare annotation is: true [2019-10-13 21:23:05,202 INFO L443 ceAbstractionStarter]: For program point L695-1(line 695) no Hoare annotation was computed. [2019-10-13 21:23:05,202 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 710) no Hoare annotation was computed. [2019-10-13 21:23:05,202 INFO L443 ceAbstractionStarter]: For program point L693-1(lines 685 713) no Hoare annotation was computed. [2019-10-13 21:23:05,202 INFO L446 ceAbstractionStarter]: At program point L691(line 691) the Hoare annotation is: true [2019-10-13 21:23:05,202 INFO L443 ceAbstractionStarter]: For program point L691-1(line 691) no Hoare annotation was computed. [2019-10-13 21:23:05,202 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 685 713) the Hoare annotation is: true [2019-10-13 21:23:05,202 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__3EXIT(lines 685 713) no Hoare annotation was computed. [2019-10-13 21:23:05,202 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 166 188) the Hoare annotation is: true [2019-10-13 21:23:05,203 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 166 188) no Hoare annotation was computed. [2019-10-13 21:23:05,203 INFO L446 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: true [2019-10-13 21:23:05,203 INFO L446 ceAbstractionStarter]: At program point L178-1(line 178) the Hoare annotation is: true [2019-10-13 21:23:05,203 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 183) no Hoare annotation was computed. [2019-10-13 21:23:05,203 INFO L443 ceAbstractionStarter]: For program point L176-1(lines 176 183) no Hoare annotation was computed. [2019-10-13 21:23:05,203 INFO L443 ceAbstractionStarter]: For program point L174(line 174) no Hoare annotation was computed. [2019-10-13 21:23:05,203 INFO L446 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: true [2019-10-13 21:23:05,203 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 166 188) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L446 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: true [2019-10-13 21:23:05,204 INFO L446 ceAbstractionStarter]: At program point L172-1(line 172) the Hoare annotation is: true [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point L129(line 129) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 122 145) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 122 145) no Hoare annotation was computed. [2019-10-13 21:23:05,204 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 122 145) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L138(line 138) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L135(line 135) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L134(line 134) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-10-13 21:23:05,205 INFO L443 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 916 924) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 916 924) the Hoare annotation is: true [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 916 924) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point L989(lines 989 993) no Hoare annotation was computed. [2019-10-13 21:23:05,206 INFO L446 ceAbstractionStarter]: At program point L987(line 987) the Hoare annotation is: true [2019-10-13 21:23:05,206 INFO L443 ceAbstractionStarter]: For program point L989-2(lines 989 993) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point L987-1(line 987) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 980 998) the Hoare annotation is: true [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 980 998) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 980 998) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point L955(line 955) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point L955-1(line 955) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point L944(lines 944 952) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 925 960) no Hoare annotation was computed. [2019-10-13 21:23:05,207 INFO L443 ceAbstractionStarter]: For program point L944-2(lines 944 952) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 925 960) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point L932(lines 932 940) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 925 960) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point L932-2(lines 932 940) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 305 350) no Hoare annotation was computed. [2019-10-13 21:23:05,208 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 305 350) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 305 350) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point L638(lines 638 645) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 618 663) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point L632(lines 632 652) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point L632-1(lines 632 652) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 618 663) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 618 663) no Hoare annotation was computed. [2019-10-13 21:23:05,209 INFO L446 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: true [2019-10-13 21:23:05,210 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 155 165) the Hoare annotation is: true [2019-10-13 21:23:05,210 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 155 165) no Hoare annotation was computed. [2019-10-13 21:23:05,210 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 155 165) no Hoare annotation was computed. [2019-10-13 21:23:05,210 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 905 915) the Hoare annotation is: true [2019-10-13 21:23:05,210 INFO L446 ceAbstractionStarter]: At program point L910(line 910) the Hoare annotation is: true [2019-10-13 21:23:05,210 INFO L443 ceAbstractionStarter]: For program point L910-1(line 910) no Hoare annotation was computed. [2019-10-13 21:23:05,210 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 905 915) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 905 915) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 897 904) the Hoare annotation is: true [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 897 904) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 897 904) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point L279(lines 279 285) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 275 288) no Hoare annotation was computed. [2019-10-13 21:23:05,211 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 275 288) the Hoare annotation is: true [2019-10-13 21:23:05,211 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 275 288) no Hoare annotation was computed. [2019-10-13 21:23:05,212 INFO L446 ceAbstractionStarter]: At program point L865(line 865) the Hoare annotation is: true [2019-10-13 21:23:05,212 INFO L443 ceAbstractionStarter]: For program point L865-1(lines 846 870) no Hoare annotation was computed. [2019-10-13 21:23:05,212 INFO L446 ceAbstractionStarter]: At program point L860(line 860) the Hoare annotation is: true [2019-10-13 21:23:05,212 INFO L446 ceAbstractionStarter]: At program point L856(line 856) the Hoare annotation is: true [2019-10-13 21:23:05,212 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 846 870) no Hoare annotation was computed. [2019-10-13 21:23:05,212 INFO L443 ceAbstractionStarter]: For program point L854(lines 854 862) no Hoare annotation was computed. [2019-10-13 21:23:05,212 INFO L446 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: true [2019-10-13 21:23:05,212 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 846 870) the Hoare annotation is: true [2019-10-13 21:23:05,213 INFO L443 ceAbstractionStarter]: For program point L852-1(line 852) no Hoare annotation was computed. [2019-10-13 21:23:05,213 INFO L443 ceAbstractionStarter]: For program point L850(lines 850 867) no Hoare annotation was computed. [2019-10-13 21:23:05,213 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 812 818) no Hoare annotation was computed. [2019-10-13 21:23:05,213 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 812 818) the Hoare annotation is: true [2019-10-13 21:23:05,213 INFO L446 ceAbstractionStarter]: At program point L737(line 737) the Hoare annotation is: true [2019-10-13 21:23:05,213 INFO L446 ceAbstractionStarter]: At program point L768(lines 725 770) the Hoare annotation is: true [2019-10-13 21:23:05,213 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 715 778) the Hoare annotation is: true [2019-10-13 21:23:05,213 INFO L443 ceAbstractionStarter]: For program point L735(lines 735 741) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point L735-1(lines 735 741) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point L727(lines 727 731) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 715 778) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L446 ceAbstractionStarter]: At program point L771(lines 724 772) the Hoare annotation is: true [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point L761(lines 761 765) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L446 ceAbstractionStarter]: At program point L761-2(lines 755 766) the Hoare annotation is: true [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point L726(lines 725 770) no Hoare annotation was computed. [2019-10-13 21:23:05,214 INFO L443 ceAbstractionStarter]: For program point L755(lines 755 766) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L446 ceAbstractionStarter]: At program point L747(line 747) the Hoare annotation is: true [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point L745(lines 745 751) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point L745-1(lines 745 751) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 715 778) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 572 617) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 572 617) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 572 617) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point L592(lines 592 599) no Hoare annotation was computed. [2019-10-13 21:23:05,215 INFO L443 ceAbstractionStarter]: For program point L586(lines 586 606) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point L586-1(lines 586 606) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 871 878) the Hoare annotation is: true [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 871 878) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 871 878) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 289 297) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 289 297) the Hoare annotation is: true [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 289 297) no Hoare annotation was computed. [2019-10-13 21:23:05,216 INFO L443 ceAbstractionStarter]: For program point L251(lines 251 259) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point L251-2(lines 251 259) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 243 265) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 243 265) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 243 265) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 53 62) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 469 571) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point L539(lines 517 540) no Hoare annotation was computed. [2019-10-13 21:23:05,217 INFO L443 ceAbstractionStarter]: For program point L498(lines 498 514) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L558(lines 558 565) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L519(lines 518 538) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 469 571) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L550-1(line 550) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L515(lines 515 556) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L534(line 534) no Hoare annotation was computed. [2019-10-13 21:23:05,218 INFO L443 ceAbstractionStarter]: For program point L534-1(line 534) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 469 571) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point L493(lines 493 497) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point L557(lines 557 568) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point L520(lines 520 524) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point L518-2(lines 518 538) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,219 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (= 1 ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2019-10-13 21:23:05,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,220 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 880 896) no Hoare annotation was computed. [2019-10-13 21:23:05,220 INFO L446 ceAbstractionStarter]: At program point L891(line 891) the Hoare annotation is: true [2019-10-13 21:23:05,220 INFO L443 ceAbstractionStarter]: For program point L891-1(lines 880 896) no Hoare annotation was computed. [2019-10-13 21:23:05,220 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 880 896) the Hoare annotation is: true [2019-10-13 21:23:05,220 INFO L443 ceAbstractionStarter]: For program point L887(lines 887 893) no Hoare annotation was computed. [2019-10-13 21:23:05,220 INFO L446 ceAbstractionStarter]: At program point L885(line 885) the Hoare annotation is: true [2019-10-13 21:23:05,220 INFO L443 ceAbstractionStarter]: For program point L885-1(line 885) no Hoare annotation was computed. [2019-10-13 21:23:05,220 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 266 274) the Hoare annotation is: true [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 266 274) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 266 274) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 961 979) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point L970(lines 970 974) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L446 ceAbstractionStarter]: At program point L968(line 968) the Hoare annotation is: true [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point L970-2(lines 970 974) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L443 ceAbstractionStarter]: For program point L968-1(line 968) no Hoare annotation was computed. [2019-10-13 21:23:05,221 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 961 979) the Hoare annotation is: true [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 961 979) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point L226-1(lines 222 233) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 222 233) the Hoare annotation is: true [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 222 233) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,222 INFO L446 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: true [2019-10-13 21:23:05,223 INFO L446 ceAbstractionStarter]: At program point L799(lines 799 805) the Hoare annotation is: true [2019-10-13 21:23:05,223 INFO L446 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2019-10-13 21:23:05,223 INFO L443 ceAbstractionStarter]: For program point L792(lines 788 810) no Hoare annotation was computed. [2019-10-13 21:23:05,223 INFO L443 ceAbstractionStarter]: For program point L790(lines 788 810) no Hoare annotation was computed. [2019-10-13 21:23:05,223 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 785 811) the Hoare annotation is: true [2019-10-13 21:23:05,223 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 785 811) no Hoare annotation was computed. [2019-10-13 21:23:05,223 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 785 811) no Hoare annotation was computed. [2019-10-13 21:23:05,224 INFO L446 ceAbstractionStarter]: At program point L99-2(lines 99 113) the Hoare annotation is: true [2019-10-13 21:23:05,224 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 89 118) no Hoare annotation was computed. [2019-10-13 21:23:05,224 INFO L446 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: true [2019-10-13 21:23:05,224 INFO L443 ceAbstractionStarter]: For program point L95-1(line 95) no Hoare annotation was computed. [2019-10-13 21:23:05,224 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 89 118) the Hoare annotation is: true [2019-10-13 21:23:05,224 INFO L446 ceAbstractionStarter]: At program point L114(lines 89 118) the Hoare annotation is: true [2019-10-13 21:23:05,224 INFO L443 ceAbstractionStarter]: For program point L110(line 110) no Hoare annotation was computed. [2019-10-13 21:23:05,224 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 107) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L446 ceAbstractionStarter]: At program point L103-1(lines 103 107) the Hoare annotation is: true [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 234 242) the Hoare annotation is: true [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 234 242) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 234 242) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 198 209) the Hoare annotation is: true [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 198 209) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point L202-1(lines 198 209) no Hoare annotation was computed. [2019-10-13 21:23:05,225 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 146 152) no Hoare annotation was computed. [2019-10-13 21:23:05,226 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 146 152) the Hoare annotation is: true [2019-10-13 21:23:05,226 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,226 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:23:05,226 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:23:05,226 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:05,226 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 820 844) the Hoare annotation is: true [2019-10-13 21:23:05,226 INFO L446 ceAbstractionStarter]: At program point L830(line 830) the Hoare annotation is: true [2019-10-13 21:23:05,226 INFO L443 ceAbstractionStarter]: For program point L828(lines 828 836) no Hoare annotation was computed. [2019-10-13 21:23:05,227 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 820 844) no Hoare annotation was computed. [2019-10-13 21:23:05,227 INFO L446 ceAbstractionStarter]: At program point L826(line 826) the Hoare annotation is: true [2019-10-13 21:23:05,227 INFO L443 ceAbstractionStarter]: For program point L826-1(line 826) no Hoare annotation was computed. [2019-10-13 21:23:05,227 INFO L443 ceAbstractionStarter]: For program point L824(lines 824 841) no Hoare annotation was computed. [2019-10-13 21:23:05,227 INFO L446 ceAbstractionStarter]: At program point L839(line 839) the Hoare annotation is: true [2019-10-13 21:23:05,227 INFO L443 ceAbstractionStarter]: For program point L839-1(lines 820 844) no Hoare annotation was computed. [2019-10-13 21:23:05,227 INFO L446 ceAbstractionStarter]: At program point L834(line 834) the Hoare annotation is: true [2019-10-13 21:23:05,227 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 210 221) no Hoare annotation was computed. [2019-10-13 21:23:05,228 INFO L443 ceAbstractionStarter]: For program point L214-1(lines 210 221) no Hoare annotation was computed. [2019-10-13 21:23:05,228 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 210 221) the Hoare annotation is: true [2019-10-13 21:23:05,228 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2019-10-13 21:23:05,228 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-13 21:23:05,228 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-13 21:23:05,228 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-13 21:23:05,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:23:05 BoogieIcfgContainer [2019-10-13 21:23:05,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:23:05,240 INFO L168 Benchmark]: Toolchain (without parser) took 10067.31 ms. Allocated memory was 147.8 MB in the beginning and 353.4 MB in the end (delta: 205.5 MB). Free memory was 105.1 MB in the beginning and 200.0 MB in the end (delta: -94.9 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,241 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.49 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 104.9 MB in the beginning and 168.7 MB in the end (delta: -63.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,243 INFO L168 Benchmark]: Boogie Preprocessor took 123.00 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 164.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,244 INFO L168 Benchmark]: RCFGBuilder took 1307.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 185.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,245 INFO L168 Benchmark]: TraceAbstraction took 7865.14 ms. Allocated memory was 233.8 MB in the beginning and 353.4 MB in the end (delta: 119.5 MB). Free memory was 184.5 MB in the beginning and 200.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:05,248 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.49 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 104.9 MB in the beginning and 168.7 MB in the end (delta: -63.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.00 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 164.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1307.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 185.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7865.14 ms. Allocated memory was 233.8 MB in the beginning and 353.4 MB in the end (delta: 119.5 MB). Free memory was 184.5 MB in the beginning and 200.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 724]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 89]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 252 locations, 1 error locations. Result: SAFE, OverallTime: 7.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 1696 SDtfs, 1278 SDslu, 3393 SDs, 0 SdLazy, 1950 SolverSat, 491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 273 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 147 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 1046 PreInvPairs, 1052 NumberOfFragments, 77 HoareAnnotationTreeSize, 1046 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 67 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1170 NumberOfCodeBlocks, 1170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1330 ConstructedInterpolants, 0 QuantifiedInterpolants, 276412 SizeOfPredicates, 4 NumberOfNonLiveVariables, 953 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 124/153 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 128, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8245614035087719, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...