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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:22:54,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:22:54,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:22:54,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:22:54,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:22:54,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:22:54,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:22:54,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:22:54,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:22:54,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:22:54,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:22:54,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:22:54,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:22:54,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:22:54,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:22:54,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:22:54,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:22:54,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:22:54,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:22:54,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:22:54,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:22:54,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:22:54,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:22:54,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:22:54,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:22:54,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:22:54,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:22:54,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:22:54,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:22:54,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:22:54,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:22:54,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:22:54,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:22:54,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:22:54,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:22:54,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:22:54,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:22:54,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:22:54,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:22:54,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:22:54,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:22:54,142 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 21:22:54,165 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:22:54,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:22:54,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:22:54,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:22:54,168 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:22:54,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:22:54,168 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:22:54,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:22:54,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:22:54,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:22:54,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:22:54,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:22:54,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:22:54,170 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:22:54,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:22:54,171 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:22:54,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:22:54,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:22:54,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:22:54,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:22:54,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:22:54,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:22:54,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:22:54,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:22:54,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:22:54,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:22:54,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:22:54,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:22:54,174 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 21:22:54,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:22:54,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:22:54,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:22:54,468 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:22:54,469 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:22:54,470 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-13 21:22:54,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a60b62e/2dda647759cb4c93aaaee62edbf24d29/FLAGae611ae90 [2019-10-13 21:22:55,127 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:22:55,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-13 21:22:55,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a60b62e/2dda647759cb4c93aaaee62edbf24d29/FLAGae611ae90 [2019-10-13 21:22:55,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a60b62e/2dda647759cb4c93aaaee62edbf24d29 [2019-10-13 21:22:55,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:22:55,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:22:55,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:55,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:22:55,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:22:55,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a145140 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 21:22:55,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:22:55" (1/1) ... [2019-10-13 21:22:55,413 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:22:55,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:22:55,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:55,946 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:22:56,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:22:56,095 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:22:56,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56 WrapperNode [2019-10-13 21:22:56,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:22:56,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:22:56,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:22:56,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:22:56,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (1/1) ... [2019-10-13 21:22:56,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:22:56,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:22:56,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:22:56,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:22:56,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (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 21:22:56,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:22:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:22:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 21:22:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 21:22:56,262 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 21:22:56,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:22:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:22:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:22:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 21:22:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 21:22:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 21:22:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:22:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:22:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:22:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:22:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:22:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:22:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:22:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 21:22:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 21:22:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:22:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:22:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:22:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:22:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:22:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:22:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:22:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 21:22:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 21:22:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 21:22:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 21:22:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 21:22:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:22:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:22:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:22:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:22:57,465 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:22:57,466 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 21:22:57,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:22:57 BoogieIcfgContainer [2019-10-13 21:22:57,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:22:57,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:22:57,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:22:57,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:22:57,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:22:55" (1/3) ... [2019-10-13 21:22:57,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721e6242 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 21:22:57,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:22:56" (2/3) ... [2019-10-13 21:22:57,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721e6242 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 21:22:57,476 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 21:22:57,479 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-13 21:22:57,490 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:22:57,500 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:22:57,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:22:57,548 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:22:57,548 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:22:57,549 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:22:57,549 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:22:57,550 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:22:57,550 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:22:57,551 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:22:57,553 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:22:57,586 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2019-10-13 21:22:57,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 21:22:57,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:57,601 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 21:22:57,603 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:57,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:57,609 INFO L82 PathProgramCache]: Analyzing trace with hash -229262266, now seen corresponding path program 1 times [2019-10-13 21:22:57,621 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:57,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444431354] [2019-10-13 21:22:57,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:57,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:57,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:57,996 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 21:22:57,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444431354] [2019-10-13 21:22:57,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:57,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:22:57,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681029351] [2019-10-13 21:22:58,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:22:58,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:58,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:22:58,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:22:58,024 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2019-10-13 21:22:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:58,076 INFO L93 Difference]: Finished difference Result 310 states and 377 transitions. [2019-10-13 21:22:58,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:22:58,077 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-13 21:22:58,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:58,091 INFO L225 Difference]: With dead ends: 310 [2019-10-13 21:22:58,091 INFO L226 Difference]: Without dead ends: 157 [2019-10-13 21:22:58,097 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 21:22:58,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-13 21:22:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-13 21:22:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-13 21:22:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-10-13 21:22:58,156 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-10-13 21:22:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:58,157 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-10-13 21:22:58,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:22:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-10-13 21:22:58,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 21:22:58,161 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:58,162 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] [2019-10-13 21:22:58,162 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash -751857026, now seen corresponding path program 1 times [2019-10-13 21:22:58,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:58,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482039986] [2019-10-13 21:22:58,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:58,277 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 21:22:58,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482039986] [2019-10-13 21:22:58,278 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:58,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:22:58,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437708596] [2019-10-13 21:22:58,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:22:58,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:58,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:22:58,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:22:58,281 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 3 states. [2019-10-13 21:22:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:58,306 INFO L93 Difference]: Finished difference Result 255 states and 295 transitions. [2019-10-13 21:22:58,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:22:58,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-13 21:22:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:58,310 INFO L225 Difference]: With dead ends: 255 [2019-10-13 21:22:58,310 INFO L226 Difference]: Without dead ends: 148 [2019-10-13 21:22:58,312 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 21:22:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-13 21:22:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-10-13 21:22:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-13 21:22:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2019-10-13 21:22:58,329 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 60 [2019-10-13 21:22:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:58,329 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2019-10-13 21:22:58,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:22:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2019-10-13 21:22:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 21:22:58,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:58,336 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] [2019-10-13 21:22:58,336 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:58,337 INFO L82 PathProgramCache]: Analyzing trace with hash -8533593, now seen corresponding path program 1 times [2019-10-13 21:22:58,337 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:58,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840067546] [2019-10-13 21:22:58,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:58,526 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 21:22:58,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840067546] [2019-10-13 21:22:58,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:58,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:58,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967140941] [2019-10-13 21:22:58,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:58,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:58,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:58,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:58,529 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand 7 states. [2019-10-13 21:22:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:58,927 INFO L93 Difference]: Finished difference Result 268 states and 313 transitions. [2019-10-13 21:22:58,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:22:58,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-13 21:22:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:58,930 INFO L225 Difference]: With dead ends: 268 [2019-10-13 21:22:58,930 INFO L226 Difference]: Without dead ends: 148 [2019-10-13 21:22:58,932 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:22:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-13 21:22:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-10-13 21:22:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-13 21:22:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 169 transitions. [2019-10-13 21:22:58,950 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 169 transitions. Word has length 65 [2019-10-13 21:22:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:58,952 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 169 transitions. [2019-10-13 21:22:58,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:22:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 169 transitions. [2019-10-13 21:22:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 21:22:58,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:58,956 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] [2019-10-13 21:22:58,956 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:58,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:58,957 INFO L82 PathProgramCache]: Analyzing trace with hash -2138732759, now seen corresponding path program 1 times [2019-10-13 21:22:58,957 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:58,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431189881] [2019-10-13 21:22:58,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:22:58,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:22:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:59,104 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 21:22:59,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431189881] [2019-10-13 21:22:59,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:59,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:22:59,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917463564] [2019-10-13 21:22:59,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:22:59,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:59,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:22:59,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:22:59,113 INFO L87 Difference]: Start difference. First operand 148 states and 169 transitions. Second operand 5 states. [2019-10-13 21:22:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:22:59,687 INFO L93 Difference]: Finished difference Result 376 states and 449 transitions. [2019-10-13 21:22:59,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:22:59,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-10-13 21:22:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:22:59,691 INFO L225 Difference]: With dead ends: 376 [2019-10-13 21:22:59,692 INFO L226 Difference]: Without dead ends: 256 [2019-10-13 21:22:59,697 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 21:22:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-13 21:22:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 237. [2019-10-13 21:22:59,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2019-10-13 21:22:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 270 transitions. [2019-10-13 21:22:59,740 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 270 transitions. Word has length 78 [2019-10-13 21:22:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:22:59,740 INFO L462 AbstractCegarLoop]: Abstraction has 237 states and 270 transitions. [2019-10-13 21:22:59,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:22:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 270 transitions. [2019-10-13 21:22:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 21:22:59,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:22:59,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:22:59,745 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:22:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:22:59,746 INFO L82 PathProgramCache]: Analyzing trace with hash 2116914143, now seen corresponding path program 1 times [2019-10-13 21:22:59,746 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:22:59,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279343961] [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 21:22:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:22:59,901 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 21:22:59,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279343961] [2019-10-13 21:22:59,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:22:59,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:22:59,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70442177] [2019-10-13 21:22:59,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:22:59,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:22:59,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:22:59,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:22:59,904 INFO L87 Difference]: Start difference. First operand 237 states and 270 transitions. Second operand 7 states. [2019-10-13 21:23:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:00,625 INFO L93 Difference]: Finished difference Result 464 states and 545 transitions. [2019-10-13 21:23:00,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:23:00,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-10-13 21:23:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:00,628 INFO L225 Difference]: With dead ends: 464 [2019-10-13 21:23:00,629 INFO L226 Difference]: Without dead ends: 255 [2019-10-13 21:23:00,630 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 21:23:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2019-10-13 21:23:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 236. [2019-10-13 21:23:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-13 21:23:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 267 transitions. [2019-10-13 21:23:00,655 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 267 transitions. Word has length 92 [2019-10-13 21:23:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:00,656 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 267 transitions. [2019-10-13 21:23:00,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:23:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 267 transitions. [2019-10-13 21:23:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 21:23:00,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:00,664 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] [2019-10-13 21:23:00,664 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:00,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:00,664 INFO L82 PathProgramCache]: Analyzing trace with hash 660673946, now seen corresponding path program 1 times [2019-10-13 21:23:00,665 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:00,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346003705] [2019-10-13 21:23:00,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:00,794 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 21:23:00,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346003705] [2019-10-13 21:23:00,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:00,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:23:00,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030724700] [2019-10-13 21:23:00,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:23:00,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:00,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:23:00,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:23:00,797 INFO L87 Difference]: Start difference. First operand 236 states and 267 transitions. Second operand 6 states. [2019-10-13 21:23:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:00,833 INFO L93 Difference]: Finished difference Result 451 states and 522 transitions. [2019-10-13 21:23:00,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:23:00,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-10-13 21:23:00,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:00,837 INFO L225 Difference]: With dead ends: 451 [2019-10-13 21:23:00,837 INFO L226 Difference]: Without dead ends: 243 [2019-10-13 21:23:00,838 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 21:23:00,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-10-13 21:23:00,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2019-10-13 21:23:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-10-13 21:23:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions. [2019-10-13 21:23:00,870 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 108 [2019-10-13 21:23:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:00,870 INFO L462 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions. [2019-10-13 21:23:00,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:23:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions. [2019-10-13 21:23:00,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 21:23:00,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:00,874 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] [2019-10-13 21:23:00,874 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:00,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:00,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1706020648, now seen corresponding path program 1 times [2019-10-13 21:23:00,874 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:00,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205482237] [2019-10-13 21:23:00,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:00,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:00,985 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 21:23:00,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205482237] [2019-10-13 21:23:00,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:00,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:23:00,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425415227] [2019-10-13 21:23:00,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:23:00,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:00,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:23:00,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:23:00,989 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand 8 states. [2019-10-13 21:23:01,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,028 INFO L93 Difference]: Finished difference Result 461 states and 533 transitions. [2019-10-13 21:23:01,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:23:01,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-13 21:23:01,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,030 INFO L225 Difference]: With dead ends: 461 [2019-10-13 21:23:01,031 INFO L226 Difference]: Without dead ends: 248 [2019-10-13 21:23:01,032 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 21:23:01,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-10-13 21:23:01,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 245. [2019-10-13 21:23:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-10-13 21:23:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 276 transitions. [2019-10-13 21:23:01,051 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 276 transitions. Word has length 108 [2019-10-13 21:23:01,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,052 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 276 transitions. [2019-10-13 21:23:01,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:23:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 276 transitions. [2019-10-13 21:23:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 21:23:01,058 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,059 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] [2019-10-13 21:23:01,059 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1946560777, now seen corresponding path program 1 times [2019-10-13 21:23:01,060 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35400873] [2019-10-13 21:23:01,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,061 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:01,130 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 21:23:01,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35400873] [2019-10-13 21:23:01,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:01,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:23:01,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734209958] [2019-10-13 21:23:01,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:23:01,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:01,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:23:01,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:23:01,133 INFO L87 Difference]: Start difference. First operand 245 states and 276 transitions. Second operand 4 states. [2019-10-13 21:23:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:01,376 INFO L93 Difference]: Finished difference Result 701 states and 827 transitions. [2019-10-13 21:23:01,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:23:01,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-10-13 21:23:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:01,383 INFO L225 Difference]: With dead ends: 701 [2019-10-13 21:23:01,383 INFO L226 Difference]: Without dead ends: 484 [2019-10-13 21:23:01,385 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 21:23:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-10-13 21:23:01,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 475. [2019-10-13 21:23:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-10-13 21:23:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 550 transitions. [2019-10-13 21:23:01,427 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 550 transitions. Word has length 108 [2019-10-13 21:23:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:01,429 INFO L462 AbstractCegarLoop]: Abstraction has 475 states and 550 transitions. [2019-10-13 21:23:01,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:23:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 550 transitions. [2019-10-13 21:23:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 21:23:01,432 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:01,432 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, 1] [2019-10-13 21:23:01,433 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:01,433 INFO L82 PathProgramCache]: Analyzing trace with hash 79738257, now seen corresponding path program 1 times [2019-10-13 21:23:01,433 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:01,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443125293] [2019-10-13 21:23:01,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:01,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:01,670 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 21:23:01,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443125293] [2019-10-13 21:23:01,671 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:23:01,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:23:01,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143171315] [2019-10-13 21:23:01,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:23:01,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:01,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:23:01,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:23:01,675 INFO L87 Difference]: Start difference. First operand 475 states and 550 transitions. Second operand 9 states. [2019-10-13 21:23:02,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:02,767 INFO L93 Difference]: Finished difference Result 1254 states and 1515 transitions. [2019-10-13 21:23:02,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:23:02,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-10-13 21:23:02,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:02,775 INFO L225 Difference]: With dead ends: 1254 [2019-10-13 21:23:02,775 INFO L226 Difference]: Without dead ends: 879 [2019-10-13 21:23:02,777 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 21:23:02,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-10-13 21:23:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 798. [2019-10-13 21:23:02,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-10-13 21:23:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 913 transitions. [2019-10-13 21:23:02,827 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 913 transitions. Word has length 112 [2019-10-13 21:23:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:02,828 INFO L462 AbstractCegarLoop]: Abstraction has 798 states and 913 transitions. [2019-10-13 21:23:02,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:23:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 913 transitions. [2019-10-13 21:23:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 21:23:02,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:23:02,832 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, 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 21:23:02,832 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:23:02,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:02,832 INFO L82 PathProgramCache]: Analyzing trace with hash -992810877, now seen corresponding path program 1 times [2019-10-13 21:23:02,832 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:23:02,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161582307] [2019-10-13 21:23:02,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:02,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:23:02,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:23:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 21:23:02,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161582307] [2019-10-13 21:23:02,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681197885] [2019-10-13 21:23:02,986 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 21:23:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:23:03,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:23:03,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:23:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:23:03,451 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:23:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 21:23:03,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1923040639] [2019-10-13 21:23:03,865 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 175 [2019-10-13 21:23:03,933 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:23:03,933 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:23:04,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:23:04,032 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-13 21:23:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:23:04,036 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:23:04,148 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:23:04,148 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:23:04,158 INFO L553 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2019-10-13 21:23:04,159 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:23:04,159 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:23:04,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11, 7, 7] total 19 [2019-10-13 21:23:04,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303925434] [2019-10-13 21:23:04,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:23:04,164 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:23:04,164 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:23:04,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:23:04,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:23:04,165 INFO L87 Difference]: Start difference. First operand 798 states and 913 transitions. Second operand 2 states. [2019-10-13 21:23:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:23:04,177 INFO L93 Difference]: Finished difference Result 798 states and 913 transitions. [2019-10-13 21:23:04,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:23:04,177 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-13 21:23:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:23:04,178 INFO L225 Difference]: With dead ends: 798 [2019-10-13 21:23:04,178 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:23:04,183 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 173 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 21:23:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:23:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:23:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:23:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:23:04,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2019-10-13 21:23:04,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:23:04,185 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:23:04,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:23:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:23:04,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:23:04,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:23:04,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:23:04,655 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 289) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point L285-1(lines 285 289) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point L280(line 280) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point L279-2(lines 279 300) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 254 309) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point L301(lines 278 302) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 254 309) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 254 309) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point L342(lines 342 346) no Hoare annotation was computed. [2019-10-13 21:23:04,656 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 310 369) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L342-1(lines 342 346) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L337(line 337) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 310 369) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L336-2(lines 336 361) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L362(lines 335 363) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 310 369) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L355(line 355) no Hoare annotation was computed. [2019-10-13 21:23:04,657 INFO L443 ceAbstractionStarter]: For program point L355-1(line 355) no Hoare annotation was computed. [2019-10-13 21:23:04,658 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 994 1000) the Hoare annotation is: true [2019-10-13 21:23:04,658 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 994 1000) no Hoare annotation was computed. [2019-10-13 21:23:04,658 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 1001 1009) no Hoare annotation was computed. [2019-10-13 21:23:04,658 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 1001 1009) the Hoare annotation is: true [2019-10-13 21:23:04,658 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 1001 1009) no Hoare annotation was computed. [2019-10-13 21:23:04,658 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 154 161) the Hoare annotation is: true [2019-10-13 21:23:04,658 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1EXIT(lines 154 161) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1FINAL(lines 154 161) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 162 171) the Hoare annotation is: true [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2EXIT(lines 162 171) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point L167(line 167) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2FINAL(lines 162 171) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L446 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: true [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 191) no Hoare annotation was computed. [2019-10-13 21:23:04,659 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 194) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L446 ceAbstractionStarter]: At program point L182(line 182) the Hoare annotation is: true [2019-10-13 21:23:04,660 INFO L443 ceAbstractionStarter]: For program point L182-1(line 182) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 197) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L443 ceAbstractionStarter]: For program point L180-1(lines 172 200) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L446 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: true [2019-10-13 21:23:04,660 INFO L443 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 172 200) the Hoare annotation is: true [2019-10-13 21:23:04,660 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__3EXIT(lines 172 200) no Hoare annotation was computed. [2019-10-13 21:23:04,660 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 647 669) the Hoare annotation is: true [2019-10-13 21:23:04,661 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 647 669) no Hoare annotation was computed. [2019-10-13 21:23:04,661 INFO L446 ceAbstractionStarter]: At program point L659(line 659) the Hoare annotation is: true [2019-10-13 21:23:04,661 INFO L446 ceAbstractionStarter]: At program point L659-1(line 659) the Hoare annotation is: true [2019-10-13 21:23:04,661 INFO L443 ceAbstractionStarter]: For program point L657(lines 657 664) no Hoare annotation was computed. [2019-10-13 21:23:04,661 INFO L443 ceAbstractionStarter]: For program point L657-1(lines 657 664) no Hoare annotation was computed. [2019-10-13 21:23:04,661 INFO L443 ceAbstractionStarter]: For program point L655(line 655) no Hoare annotation was computed. [2019-10-13 21:23:04,661 INFO L446 ceAbstractionStarter]: At program point L654(line 654) the Hoare annotation is: true [2019-10-13 21:23:04,661 INFO L446 ceAbstractionStarter]: At program point L653(line 653) the Hoare annotation is: true [2019-10-13 21:23:04,661 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 647 669) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L446 ceAbstractionStarter]: At program point L653-1(line 653) the Hoare annotation is: true [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point L609(line 609) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point L608(line 608) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 601 624) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point L607(line 607) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point L606(line 606) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 601 624) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 601 624) no Hoare annotation was computed. [2019-10-13 21:23:04,662 INFO L443 ceAbstractionStarter]: For program point L619(line 619) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L618(line 618) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L617(line 617) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L616(line 616) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L615(line 615) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L614(line 614) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L613(line 613) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L612(line 612) no Hoare annotation was computed. [2019-10-13 21:23:04,663 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point L610(line 610) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 884 892) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 884 892) the Hoare annotation is: true [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 884 892) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point L957(lines 957 961) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L446 ceAbstractionStarter]: At program point L955(line 955) the Hoare annotation is: true [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point L957-2(lines 957 961) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L443 ceAbstractionStarter]: For program point L955-1(line 955) no Hoare annotation was computed. [2019-10-13 21:23:04,664 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 948 966) the Hoare annotation is: true [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 948 966) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 948 966) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point L923(line 923) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point L923-1(line 923) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point L912(lines 912 920) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 893 928) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point L912-2(lines 912 920) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 893 928) no Hoare annotation was computed. [2019-10-13 21:23:04,665 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 908) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 893 928) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point L900-2(lines 900 908) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 987 993) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 987 993) the Hoare annotation is: true [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 208 253) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 208 253) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 208 253) no Hoare annotation was computed. [2019-10-13 21:23:04,666 INFO L443 ceAbstractionStarter]: For program point L541(lines 541 548) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 521 566) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point L535(lines 535 555) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 535 555) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 521 566) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 521 566) no Hoare annotation was computed. [2019-10-13 21:23:04,667 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 633 643) the Hoare annotation is: true [2019-10-13 21:23:04,667 INFO L446 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: true [2019-10-13 21:23:04,667 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 633 643) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 633 643) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 873 883) the Hoare annotation is: true [2019-10-13 21:23:04,668 INFO L446 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: true [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point L878-1(line 878) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 873 883) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 873 883) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 865 872) the Hoare annotation is: true [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 865 872) no Hoare annotation was computed. [2019-10-13 21:23:04,668 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 865 872) no Hoare annotation was computed. [2019-10-13 21:23:04,669 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 127 140) no Hoare annotation was computed. [2019-10-13 21:23:04,669 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2019-10-13 21:23:04,669 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 127 140) the Hoare annotation is: true [2019-10-13 21:23:04,669 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 127 140) no Hoare annotation was computed. [2019-10-13 21:23:04,669 INFO L446 ceAbstractionStarter]: At program point L833(line 833) the Hoare annotation is: true [2019-10-13 21:23:04,669 INFO L443 ceAbstractionStarter]: For program point L833-1(lines 814 838) no Hoare annotation was computed. [2019-10-13 21:23:04,669 INFO L446 ceAbstractionStarter]: At program point L828(line 828) the Hoare annotation is: true [2019-10-13 21:23:04,669 INFO L446 ceAbstractionStarter]: At program point L824(line 824) the Hoare annotation is: true [2019-10-13 21:23:04,670 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 814 838) no Hoare annotation was computed. [2019-10-13 21:23:04,670 INFO L443 ceAbstractionStarter]: For program point L822(lines 822 830) no Hoare annotation was computed. [2019-10-13 21:23:04,670 INFO L446 ceAbstractionStarter]: At program point L820(line 820) the Hoare annotation is: true [2019-10-13 21:23:04,670 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 814 838) the Hoare annotation is: true [2019-10-13 21:23:04,670 INFO L443 ceAbstractionStarter]: For program point L820-1(line 820) no Hoare annotation was computed. [2019-10-13 21:23:04,670 INFO L443 ceAbstractionStarter]: For program point L818(lines 818 835) no Hoare annotation was computed. [2019-10-13 21:23:04,670 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 780 786) no Hoare annotation was computed. [2019-10-13 21:23:04,670 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 780 786) the Hoare annotation is: true [2019-10-13 21:23:04,670 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 681 746) the Hoare annotation is: true [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point L729(lines 729 733) no Hoare annotation was computed. [2019-10-13 21:23:04,671 INFO L446 ceAbstractionStarter]: At program point L729-2(lines 721 734) the Hoare annotation is: true [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 681 746) no Hoare annotation was computed. [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point L692(lines 691 738) no Hoare annotation was computed. [2019-10-13 21:23:04,671 INFO L446 ceAbstractionStarter]: At program point L723(line 723) the Hoare annotation is: true [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point L721(lines 721 734) no Hoare annotation was computed. [2019-10-13 21:23:04,671 INFO L446 ceAbstractionStarter]: At program point L713(line 713) the Hoare annotation is: true [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point L711(lines 711 717) no Hoare annotation was computed. [2019-10-13 21:23:04,671 INFO L443 ceAbstractionStarter]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L446 ceAbstractionStarter]: At program point L736(lines 691 738) the Hoare annotation is: true [2019-10-13 21:23:04,672 INFO L446 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: true [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point L701(lines 701 707) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point L701-1(lines 701 707) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 697) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L446 ceAbstractionStarter]: At program point L739(lines 690 740) the Hoare annotation is: true [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 681 746) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 475 520) no Hoare annotation was computed. [2019-10-13 21:23:04,672 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 475 520) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 475 520) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point L495(lines 495 502) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point L489(lines 489 509) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point L489-1(lines 489 509) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 839 846) the Hoare annotation is: true [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 839 846) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 839 846) no Hoare annotation was computed. [2019-10-13 21:23:04,673 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 141 149) the Hoare annotation is: true [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 141 149) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 111) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point L103-2(lines 103 111) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 95 117) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 372 474) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point L442(lines 420 443) no Hoare annotation was computed. [2019-10-13 21:23:04,674 INFO L443 ceAbstractionStarter]: For program point L401(lines 401 417) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L461(lines 461 468) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L422(lines 421 441) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 372 474) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L453(line 453) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L453-1(line 453) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L418(lines 418 459) no Hoare annotation was computed. [2019-10-13 21:23:04,675 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-10-13 21:23:04,676 INFO L443 ceAbstractionStarter]: For program point L437-1(line 437) no Hoare annotation was computed. [2019-10-13 21:23:04,676 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 372 474) no Hoare annotation was computed. [2019-10-13 21:23:04,676 INFO L443 ceAbstractionStarter]: For program point L396(lines 396 400) no Hoare annotation was computed. [2019-10-13 21:23:04,676 INFO L443 ceAbstractionStarter]: For program point L460(lines 460 471) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point L423(lines 423 427) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point L421-2(lines 421 441) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 977 986) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 977 986) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 977 986) no Hoare annotation was computed. [2019-10-13 21:23:04,677 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,677 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 21:23:04,678 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,678 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 848 864) no Hoare annotation was computed. [2019-10-13 21:23:04,678 INFO L446 ceAbstractionStarter]: At program point L859(line 859) the Hoare annotation is: true [2019-10-13 21:23:04,678 INFO L443 ceAbstractionStarter]: For program point L859-1(lines 848 864) no Hoare annotation was computed. [2019-10-13 21:23:04,679 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 848 864) the Hoare annotation is: true [2019-10-13 21:23:04,679 INFO L443 ceAbstractionStarter]: For program point L855(lines 855 861) no Hoare annotation was computed. [2019-10-13 21:23:04,679 INFO L446 ceAbstractionStarter]: At program point L853(line 853) the Hoare annotation is: true [2019-10-13 21:23:04,679 INFO L443 ceAbstractionStarter]: For program point L853-1(line 853) no Hoare annotation was computed. [2019-10-13 21:23:04,679 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 118 126) the Hoare annotation is: true [2019-10-13 21:23:04,679 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 118 126) no Hoare annotation was computed. [2019-10-13 21:23:04,680 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 118 126) no Hoare annotation was computed. [2019-10-13 21:23:04,680 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 929 947) no Hoare annotation was computed. [2019-10-13 21:23:04,680 INFO L443 ceAbstractionStarter]: For program point L938(lines 938 942) no Hoare annotation was computed. [2019-10-13 21:23:04,680 INFO L446 ceAbstractionStarter]: At program point L936(line 936) the Hoare annotation is: true [2019-10-13 21:23:04,680 INFO L443 ceAbstractionStarter]: For program point L938-2(lines 938 942) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point L936-1(line 936) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 929 947) the Hoare annotation is: true [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 929 947) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 74 85) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 74 85) the Hoare annotation is: true [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 74 85) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,681 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,682 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 86 94) the Hoare annotation is: true [2019-10-13 21:23:04,682 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 86 94) no Hoare annotation was computed. [2019-10-13 21:23:04,682 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 86 94) no Hoare annotation was computed. [2019-10-13 21:23:04,683 INFO L446 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: true [2019-10-13 21:23:04,683 INFO L446 ceAbstractionStarter]: At program point L767(lines 767 773) the Hoare annotation is: true [2019-10-13 21:23:04,683 INFO L446 ceAbstractionStarter]: At program point L762(line 762) the Hoare annotation is: true [2019-10-13 21:23:04,683 INFO L443 ceAbstractionStarter]: For program point L760(lines 756 778) no Hoare annotation was computed. [2019-10-13 21:23:04,683 INFO L443 ceAbstractionStarter]: For program point L758(lines 756 778) no Hoare annotation was computed. [2019-10-13 21:23:04,683 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 753 779) the Hoare annotation is: true [2019-10-13 21:23:04,683 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 753 779) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 753 779) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L446 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2019-10-13 21:23:04,684 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 570 599) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L443 ceAbstractionStarter]: For program point L576-1(line 576) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 570 599) the Hoare annotation is: true [2019-10-13 21:23:04,684 INFO L446 ceAbstractionStarter]: At program point L595(lines 570 599) the Hoare annotation is: true [2019-10-13 21:23:04,684 INFO L443 ceAbstractionStarter]: For program point L591(line 591) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 588) no Hoare annotation was computed. [2019-10-13 21:23:04,684 INFO L446 ceAbstractionStarter]: At program point L584-1(lines 584 588) the Hoare annotation is: true [2019-10-13 21:23:04,685 INFO L443 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2019-10-13 21:23:04,685 INFO L446 ceAbstractionStarter]: At program point L580-2(lines 580 594) the Hoare annotation is: true [2019-10-13 21:23:04,685 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 50 61) the Hoare annotation is: true [2019-10-13 21:23:04,685 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 50 61) no Hoare annotation was computed. [2019-10-13 21:23:04,685 INFO L443 ceAbstractionStarter]: For program point L54-1(lines 50 61) no Hoare annotation was computed. [2019-10-13 21:23:04,685 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 625 631) no Hoare annotation was computed. [2019-10-13 21:23:04,685 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 625 631) the Hoare annotation is: true [2019-10-13 21:23:04,685 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,685 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:23:04,686 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:23:04,686 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:23:04,686 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 967 974) no Hoare annotation was computed. [2019-10-13 21:23:04,686 INFO L446 ceAbstractionStarter]: At program point startSystemENTRY(lines 967 974) the Hoare annotation is: true [2019-10-13 21:23:04,686 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 967 974) no Hoare annotation was computed. [2019-10-13 21:23:04,686 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 788 812) the Hoare annotation is: true [2019-10-13 21:23:04,686 INFO L446 ceAbstractionStarter]: At program point L798(line 798) the Hoare annotation is: true [2019-10-13 21:23:04,686 INFO L443 ceAbstractionStarter]: For program point L796(lines 796 804) no Hoare annotation was computed. [2019-10-13 21:23:04,686 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 788 812) no Hoare annotation was computed. [2019-10-13 21:23:04,687 INFO L446 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2019-10-13 21:23:04,687 INFO L443 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2019-10-13 21:23:04,687 INFO L443 ceAbstractionStarter]: For program point L792(lines 792 809) no Hoare annotation was computed. [2019-10-13 21:23:04,687 INFO L446 ceAbstractionStarter]: At program point L807(line 807) the Hoare annotation is: true [2019-10-13 21:23:04,687 INFO L443 ceAbstractionStarter]: For program point L807-1(lines 788 812) no Hoare annotation was computed. [2019-10-13 21:23:04,687 INFO L446 ceAbstractionStarter]: At program point L802(line 802) the Hoare annotation is: true [2019-10-13 21:23:04,687 INFO L443 ceAbstractionStarter]: For program point L66-1(lines 62 73) no Hoare annotation was computed. [2019-10-13 21:23:04,687 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 62 73) no Hoare annotation was computed. [2019-10-13 21:23:04,688 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 62 73) the Hoare annotation is: true [2019-10-13 21:23:04,689 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 675) no Hoare annotation was computed. [2019-10-13 21:23:04,689 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 671 678) no Hoare annotation was computed. [2019-10-13 21:23:04,689 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 671 678) the Hoare annotation is: true [2019-10-13 21:23:04,691 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 671 678) no Hoare annotation was computed. [2019-10-13 21:23:04,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:23:04 BoogieIcfgContainer [2019-10-13 21:23:04,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:23:04,703 INFO L168 Benchmark]: Toolchain (without parser) took 9307.82 ms. Allocated memory was 145.2 MB in the beginning and 328.7 MB in the end (delta: 183.5 MB). Free memory was 102.2 MB in the beginning and 86.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 199.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,704 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.84 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 169.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,706 INFO L168 Benchmark]: Boogie Preprocessor took 100.98 ms. Allocated memory is still 202.9 MB. Free memory was 169.2 MB in the beginning and 164.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,707 INFO L168 Benchmark]: RCFGBuilder took 1270.57 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 192.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,708 INFO L168 Benchmark]: TraceAbstraction took 7231.43 ms. Allocated memory was 235.4 MB in the beginning and 328.7 MB in the end (delta: 93.3 MB). Free memory was 192.1 MB in the beginning and 86.2 MB in the end (delta: 106.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:23:04,713 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.84 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 169.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.98 ms. Allocated memory is still 202.9 MB. Free memory was 169.2 MB in the beginning and 164.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1270.57 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 192.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7231.43 ms. Allocated memory was 235.4 MB in the beginning and 328.7 MB in the end (delta: 93.3 MB). Free memory was 192.1 MB in the beginning and 86.2 MB in the end (delta: 106.0 MB). Peak memory consumption was 199.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: 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: 690]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 256 locations, 1 error locations. Result: SAFE, OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 1703 SDtfs, 1311 SDslu, 3346 SDs, 0 SdLazy, 1921 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred 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, 133 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 971 PreInvPairs, 972 NumberOfFragments, 79 HoareAnnotationTreeSize, 971 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 69 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1138 NumberOfCodeBlocks, 1138 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 276139 SizeOfPredicates, 4 NumberOfNonLiveVariables, 977 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 127/156 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 172, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8265895953757225, 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...