java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:21:10,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:21:10,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:21:10,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:21:10,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:21:10,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:21:10,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:21:10,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:21:10,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:21:10,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:21:10,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:21:10,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:21:10,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:21:10,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:21:10,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:21:10,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:21:10,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:21:10,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:21:10,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:21:10,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:21:10,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:21:10,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:21:10,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:21:10,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:21:11,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:21:11,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:21:11,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:21:11,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:21:11,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:21:11,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:21:11,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:21:11,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:21:11,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:21:11,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:21:11,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:21:11,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:21:11,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:21:11,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:21:11,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:21:11,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:21:11,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:21:11,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:21:11,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:21:11,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:21:11,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:21:11,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:21:11,040 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:21:11,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:21:11,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:21:11,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:21:11,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:21:11,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:21:11,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:21:11,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:21:11,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:21:11,043 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:21:11,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:21:11,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:21:11,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:21:11,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:21:11,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:21:11,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:21:11,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:21:11,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:11,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:21:11,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:21:11,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:21:11,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:21:11,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:21:11,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:21:11,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:21:11,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:21:11,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:21:11,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:21:11,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:21:11,393 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:21:11,394 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2019-10-15 01:21:11,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c805333e2/e38393a299a04e9cba400378304655a4/FLAG2277c383c [2019-10-15 01:21:12,040 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:21:12,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2019-10-15 01:21:12,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c805333e2/e38393a299a04e9cba400378304655a4/FLAG2277c383c [2019-10-15 01:21:12,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c805333e2/e38393a299a04e9cba400378304655a4 [2019-10-15 01:21:12,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:21:12,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:21:12,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:12,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:21:12,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:21:12,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ebadfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:12, skipping insertion in model container [2019-10-15 01:21:12,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:21:12" (1/1) ... [2019-10-15 01:21:12,362 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:21:12,427 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:21:12,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:12,939 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:21:13,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:21:13,079 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:21:13,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13 WrapperNode [2019-10-15 01:21:13,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:21:13,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:21:13,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:21:13,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:21:13,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... [2019-10-15 01:21:13,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:21:13,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:21:13,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:21:13,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:21:13,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:21:13,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:21:13,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:21:13,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:13,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:21:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:21:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 01:21:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 01:21:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 01:21:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 01:21:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 01:21:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 01:21:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 01:21:13,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 01:21:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:21:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:21:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:21:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:21:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:21:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:21:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:21:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 01:21:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 01:21:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 01:21:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 01:21:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 01:21:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 01:21:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 01:21:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 01:21:13,253 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 01:21:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 01:21:13,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 01:21:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 01:21:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 01:21:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 01:21:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 01:21:13,256 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 01:21:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-15 01:21:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 01:21:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 01:21:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:21:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 01:21:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:21:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:21:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:21:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:21:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 01:21:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:21:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 01:21:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:21:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:21:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:21:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:21:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:21:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:21:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:21:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:21:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:21:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:21:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:21:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:21:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:21:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:21:14,309 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:21:14,310 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 01:21:14,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:14 BoogieIcfgContainer [2019-10-15 01:21:14,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:21:14,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:21:14,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:21:14,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:21:14,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:21:12" (1/3) ... [2019-10-15 01:21:14,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b749498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:14, skipping insertion in model container [2019-10-15 01:21:14,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:21:13" (2/3) ... [2019-10-15 01:21:14,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b749498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:21:14, skipping insertion in model container [2019-10-15 01:21:14,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:21:14" (3/3) ... [2019-10-15 01:21:14,320 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2019-10-15 01:21:14,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:21:14,339 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:21:14,351 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:21:14,378 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:21:14,379 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:21:14,379 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:21:14,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:21:14,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:21:14,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:21:14,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:21:14,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:21:14,403 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2019-10-15 01:21:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 01:21:14,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:14,414 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:14,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:14,422 INFO L82 PathProgramCache]: Analyzing trace with hash 182694304, now seen corresponding path program 1 times [2019-10-15 01:21:14,432 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:14,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130994451] [2019-10-15 01:21:14,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:14,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130994451] [2019-10-15 01:21:14,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:14,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:21:14,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118683171] [2019-10-15 01:21:14,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:14,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:14,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:14,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,830 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2019-10-15 01:21:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:14,873 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2019-10-15 01:21:14,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:14,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 01:21:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:14,889 INFO L225 Difference]: With dead ends: 314 [2019-10-15 01:21:14,889 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:21:14,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:21:14,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:21:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:21:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 185 transitions. [2019-10-15 01:21:14,958 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 185 transitions. Word has length 46 [2019-10-15 01:21:14,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:14,959 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 185 transitions. [2019-10-15 01:21:14,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:14,959 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 185 transitions. [2019-10-15 01:21:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 01:21:14,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:14,964 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:14,964 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:14,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1720628684, now seen corresponding path program 1 times [2019-10-15 01:21:14,965 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:14,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301963133] [2019-10-15 01:21:14,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,965 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:14,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:15,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301963133] [2019-10-15 01:21:15,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:15,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:21:15,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441672947] [2019-10-15 01:21:15,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:21:15,150 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:15,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:21:15,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:21:15,151 INFO L87 Difference]: Start difference. First operand 157 states and 185 transitions. Second operand 3 states. [2019-10-15 01:21:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:15,183 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2019-10-15 01:21:15,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:21:15,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 01:21:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:15,187 INFO L225 Difference]: With dead ends: 259 [2019-10-15 01:21:15,187 INFO L226 Difference]: Without dead ends: 148 [2019-10-15 01:21:15,189 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:21:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-15 01:21:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-10-15 01:21:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-15 01:21:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2019-10-15 01:21:15,207 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 47 [2019-10-15 01:21:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:15,207 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2019-10-15 01:21:15,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:21:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2019-10-15 01:21:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 01:21:15,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:15,210 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:15,214 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:15,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:15,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1588538268, now seen corresponding path program 1 times [2019-10-15 01:21:15,215 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:15,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406871950] [2019-10-15 01:21:15,216 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,216 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:15,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406871950] [2019-10-15 01:21:15,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:15,411 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:21:15,411 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36850488] [2019-10-15 01:21:15,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:21:15,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:15,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:21:15,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:15,413 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand 7 states. [2019-10-15 01:21:15,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:15,831 INFO L93 Difference]: Finished difference Result 272 states and 323 transitions. [2019-10-15 01:21:15,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:15,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-15 01:21:15,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:15,838 INFO L225 Difference]: With dead ends: 272 [2019-10-15 01:21:15,839 INFO L226 Difference]: Without dead ends: 148 [2019-10-15 01:21:15,843 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:21:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-10-15 01:21:15,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-10-15 01:21:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-15 01:21:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2019-10-15 01:21:15,883 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 52 [2019-10-15 01:21:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:15,884 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2019-10-15 01:21:15,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:21:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2019-10-15 01:21:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-15 01:21:15,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:15,892 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:15,892 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:15,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:15,892 INFO L82 PathProgramCache]: Analyzing trace with hash 265767055, now seen corresponding path program 1 times [2019-10-15 01:21:15,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:15,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686758466] [2019-10-15 01:21:15,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:15,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:16,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686758466] [2019-10-15 01:21:16,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:16,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:21:16,089 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744587653] [2019-10-15 01:21:16,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:16,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:16,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:16,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:21:16,090 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 5 states. [2019-10-15 01:21:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:16,670 INFO L93 Difference]: Finished difference Result 389 states and 466 transitions. [2019-10-15 01:21:16,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:21:16,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-10-15 01:21:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:16,681 INFO L225 Difference]: With dead ends: 389 [2019-10-15 01:21:16,682 INFO L226 Difference]: Without dead ends: 265 [2019-10-15 01:21:16,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:21:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-10-15 01:21:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 246. [2019-10-15 01:21:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-10-15 01:21:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 276 transitions. [2019-10-15 01:21:16,744 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 276 transitions. Word has length 70 [2019-10-15 01:21:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:16,745 INFO L462 AbstractCegarLoop]: Abstraction has 246 states and 276 transitions. [2019-10-15 01:21:16,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 276 transitions. [2019-10-15 01:21:16,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-15 01:21:16,751 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:16,751 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:16,752 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:16,753 INFO L82 PathProgramCache]: Analyzing trace with hash 990610989, now seen corresponding path program 1 times [2019-10-15 01:21:16,753 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:16,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723247084] [2019-10-15 01:21:16,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:16,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:16,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:16,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723247084] [2019-10-15 01:21:16,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:16,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:21:16,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722918729] [2019-10-15 01:21:16,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:21:16,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:21:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:21:16,951 INFO L87 Difference]: Start difference. First operand 246 states and 276 transitions. Second operand 10 states. [2019-10-15 01:21:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:17,691 INFO L93 Difference]: Finished difference Result 803 states and 971 transitions. [2019-10-15 01:21:17,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 01:21:17,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2019-10-15 01:21:17,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:17,698 INFO L225 Difference]: With dead ends: 803 [2019-10-15 01:21:17,699 INFO L226 Difference]: Without dead ends: 581 [2019-10-15 01:21:17,700 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:21:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-15 01:21:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 571. [2019-10-15 01:21:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-15 01:21:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 660 transitions. [2019-10-15 01:21:17,777 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 660 transitions. Word has length 84 [2019-10-15 01:21:17,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:17,778 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 660 transitions. [2019-10-15 01:21:17,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:21:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 660 transitions. [2019-10-15 01:21:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 01:21:17,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:17,788 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:17,788 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:17,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:17,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2008036261, now seen corresponding path program 1 times [2019-10-15 01:21:17,789 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:17,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460898186] [2019-10-15 01:21:17,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:17,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:17,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:17,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460898186] [2019-10-15 01:21:17,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044375626] [2019-10-15 01:21:17,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:18,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:18,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:18,197 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:18,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:18,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-10-15 01:21:18,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945733795] [2019-10-15 01:21:18,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:18,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:18,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:18,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:18,579 INFO L87 Difference]: Start difference. First operand 571 states and 660 transitions. Second operand 6 states. [2019-10-15 01:21:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:18,667 INFO L93 Difference]: Finished difference Result 1139 states and 1362 transitions. [2019-10-15 01:21:18,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:21:18,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2019-10-15 01:21:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:18,672 INFO L225 Difference]: With dead ends: 1139 [2019-10-15 01:21:18,673 INFO L226 Difference]: Without dead ends: 592 [2019-10-15 01:21:18,675 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:21:18,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-10-15 01:21:18,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2019-10-15 01:21:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2019-10-15 01:21:18,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 676 transitions. [2019-10-15 01:21:18,717 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 676 transitions. Word has length 148 [2019-10-15 01:21:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:18,717 INFO L462 AbstractCegarLoop]: Abstraction has 586 states and 676 transitions. [2019-10-15 01:21:18,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 676 transitions. [2019-10-15 01:21:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 01:21:18,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:18,721 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:21:18,936 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:18,936 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:18,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1224194793, now seen corresponding path program 1 times [2019-10-15 01:21:18,937 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:18,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525569322] [2019-10-15 01:21:18,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:18,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:18,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:21:19,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525569322] [2019-10-15 01:21:19,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582862398] [2019-10-15 01:21:19,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:19,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:21:19,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:19,476 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:19,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:21:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:19,968 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:19,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 9] total 17 [2019-10-15 01:21:19,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767133297] [2019-10-15 01:21:19,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:21:19,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:19,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:21:19,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:21:19,971 INFO L87 Difference]: Start difference. First operand 586 states and 676 transitions. Second operand 8 states. [2019-10-15 01:21:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:21,601 INFO L93 Difference]: Finished difference Result 1493 states and 1896 transitions. [2019-10-15 01:21:21,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:21:21,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2019-10-15 01:21:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:21,619 INFO L225 Difference]: With dead ends: 1493 [2019-10-15 01:21:21,619 INFO L226 Difference]: Without dead ends: 1064 [2019-10-15 01:21:21,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 302 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:21:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2019-10-15 01:21:21,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 980. [2019-10-15 01:21:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2019-10-15 01:21:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1179 transitions. [2019-10-15 01:21:21,709 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1179 transitions. Word has length 148 [2019-10-15 01:21:21,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:21,710 INFO L462 AbstractCegarLoop]: Abstraction has 980 states and 1179 transitions. [2019-10-15 01:21:21,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:21:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1179 transitions. [2019-10-15 01:21:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 01:21:21,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:21,714 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:21,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:21,928 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash -935545817, now seen corresponding path program 1 times [2019-10-15 01:21:21,929 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:21,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051297844] [2019-10-15 01:21:21,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:21,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:21,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:22,047 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:22,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051297844] [2019-10-15 01:21:22,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263320605] [2019-10-15 01:21:22,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:22,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:21:22,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:22,387 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:21:22,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:22,696 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-10-15 01:21:22,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422118908] [2019-10-15 01:21:22,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:21:22,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:22,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:21:22,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:22,698 INFO L87 Difference]: Start difference. First operand 980 states and 1179 transitions. Second operand 5 states. [2019-10-15 01:21:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:22,750 INFO L93 Difference]: Finished difference Result 1746 states and 2150 transitions. [2019-10-15 01:21:22,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:21:22,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-10-15 01:21:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:22,756 INFO L225 Difference]: With dead ends: 1746 [2019-10-15 01:21:22,756 INFO L226 Difference]: Without dead ends: 790 [2019-10-15 01:21:22,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:21:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-15 01:21:22,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-15 01:21:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-15 01:21:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 941 transitions. [2019-10-15 01:21:22,809 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 941 transitions. Word has length 148 [2019-10-15 01:21:22,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:22,810 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 941 transitions. [2019-10-15 01:21:22,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:21:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 941 transitions. [2019-10-15 01:21:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 01:21:22,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:22,813 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:23,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:23,018 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:23,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:23,019 INFO L82 PathProgramCache]: Analyzing trace with hash 2041878082, now seen corresponding path program 1 times [2019-10-15 01:21:23,019 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:23,021 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72497222] [2019-10-15 01:21:23,021 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:23,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:23,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:21:23,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72497222] [2019-10-15 01:21:23,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:23,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:21:23,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526316178] [2019-10-15 01:21:23,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:21:23,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:23,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:21:23,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:21:23,169 INFO L87 Difference]: Start difference. First operand 790 states and 941 transitions. Second operand 9 states. [2019-10-15 01:21:24,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:24,090 INFO L93 Difference]: Finished difference Result 2129 states and 2593 transitions. [2019-10-15 01:21:24,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:21:24,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2019-10-15 01:21:24,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:24,100 INFO L225 Difference]: With dead ends: 2129 [2019-10-15 01:21:24,101 INFO L226 Difference]: Without dead ends: 1363 [2019-10-15 01:21:24,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:21:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-10-15 01:21:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1360. [2019-10-15 01:21:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1360 states. [2019-10-15 01:21:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1604 transitions. [2019-10-15 01:21:24,202 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1604 transitions. Word has length 152 [2019-10-15 01:21:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:24,202 INFO L462 AbstractCegarLoop]: Abstraction has 1360 states and 1604 transitions. [2019-10-15 01:21:24,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:21:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1604 transitions. [2019-10-15 01:21:24,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:21:24,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:24,206 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:24,206 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash -508382690, now seen corresponding path program 1 times [2019-10-15 01:21:24,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:24,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742684984] [2019-10-15 01:21:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:24,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:21:24,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742684984] [2019-10-15 01:21:24,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212299855] [2019-10-15 01:21:24,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:24,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-15 01:21:24,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:21:24,916 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:21:26,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:21:26,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2019-10-15 01:21:26,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413368680] [2019-10-15 01:21:26,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:21:26,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:26,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:21:26,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:21:26,657 INFO L87 Difference]: Start difference. First operand 1360 states and 1604 transitions. Second operand 8 states. [2019-10-15 01:21:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:27,112 INFO L93 Difference]: Finished difference Result 2525 states and 3007 transitions. [2019-10-15 01:21:27,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:21:27,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2019-10-15 01:21:27,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:27,121 INFO L225 Difference]: With dead ends: 2525 [2019-10-15 01:21:27,122 INFO L226 Difference]: Without dead ends: 1325 [2019-10-15 01:21:27,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 293 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:21:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2019-10-15 01:21:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1322. [2019-10-15 01:21:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2019-10-15 01:21:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1552 transitions. [2019-10-15 01:21:27,204 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1552 transitions. Word has length 156 [2019-10-15 01:21:27,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:27,205 INFO L462 AbstractCegarLoop]: Abstraction has 1322 states and 1552 transitions. [2019-10-15 01:21:27,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:21:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1552 transitions. [2019-10-15 01:21:27,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:21:27,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:27,209 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:27,422 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:27,423 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:27,424 INFO L82 PathProgramCache]: Analyzing trace with hash -620136546, now seen corresponding path program 2 times [2019-10-15 01:21:27,424 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:27,424 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142444809] [2019-10-15 01:21:27,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:21:27,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142444809] [2019-10-15 01:21:27,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:21:27,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:21:27,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585777415] [2019-10-15 01:21:27,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:21:27,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:27,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:21:27,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:21:27,561 INFO L87 Difference]: Start difference. First operand 1322 states and 1552 transitions. Second operand 6 states. [2019-10-15 01:21:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:27,854 INFO L93 Difference]: Finished difference Result 1347 states and 1581 transitions. [2019-10-15 01:21:27,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:21:27,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2019-10-15 01:21:27,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:27,863 INFO L225 Difference]: With dead ends: 1347 [2019-10-15 01:21:27,864 INFO L226 Difference]: Without dead ends: 1344 [2019-10-15 01:21:27,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:21:27,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2019-10-15 01:21:27,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1322. [2019-10-15 01:21:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2019-10-15 01:21:27,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1544 transitions. [2019-10-15 01:21:27,948 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1544 transitions. Word has length 156 [2019-10-15 01:21:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:27,949 INFO L462 AbstractCegarLoop]: Abstraction has 1322 states and 1544 transitions. [2019-10-15 01:21:27,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:21:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1544 transitions. [2019-10-15 01:21:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:21:27,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:21:27,952 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:21:27,953 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:21:27,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:27,953 INFO L82 PathProgramCache]: Analyzing trace with hash 350169461, now seen corresponding path program 1 times [2019-10-15 01:21:27,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:21:27,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083715252] [2019-10-15 01:21:27,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:21:27,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:21:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 01:21:28,091 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083715252] [2019-10-15 01:21:28,091 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425626905] [2019-10-15 01:21:28,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:21:28,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:21:28,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:21:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:21:28,453 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:21:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 01:21:28,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [862637591] [2019-10-15 01:21:28,808 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 175 [2019-10-15 01:21:28,853 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:21:28,853 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:21:28,937 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:21:28,938 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-15 01:21:28,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:21:28,942 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:21:28,998 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:21:28,999 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:21:29,003 INFO L553 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2019-10-15 01:21:29,003 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:21:29,004 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:21:29,004 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 9, 9] total 14 [2019-10-15 01:21:29,004 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270212555] [2019-10-15 01:21:29,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:21:29,006 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:21:29,006 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:21:29,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:21:29,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:21:29,007 INFO L87 Difference]: Start difference. First operand 1322 states and 1544 transitions. Second operand 2 states. [2019-10-15 01:21:29,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:21:29,027 INFO L93 Difference]: Finished difference Result 1322 states and 1544 transitions. [2019-10-15 01:21:29,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:21:29,027 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-15 01:21:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:21:29,028 INFO L225 Difference]: With dead ends: 1322 [2019-10-15 01:21:29,028 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:21:29,031 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 [2019-10-15 01:21:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:21:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:21:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:21:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:21:29,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2019-10-15 01:21:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:21:29,033 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:21:29,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:21:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:21:29,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:21:29,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:21:29,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:21:29,800 INFO L443 ceAbstractionStarter]: For program point L639(lines 616 640) no Hoare annotation was computed. [2019-10-15 01:21:29,800 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 592 647) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point L623(lines 623 627) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point L623-1(lines 623 627) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point L618(line 618) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point L617-2(lines 617 638) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 592 647) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 592 647) no Hoare annotation was computed. [2019-10-15 01:21:29,801 INFO L443 ceAbstractionStarter]: For program point L674-2(lines 674 699) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point L700(lines 673 701) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 648 707) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point L693(line 693) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point L693-1(line 693) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 648 707) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 648 707) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point L680(lines 680 684) no Hoare annotation was computed. [2019-10-15 01:21:29,802 INFO L443 ceAbstractionStarter]: For program point L680-1(lines 680 684) no Hoare annotation was computed. [2019-10-15 01:21:29,803 INFO L443 ceAbstractionStarter]: For program point L675(line 675) no Hoare annotation was computed. [2019-10-15 01:21:29,803 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 427 433) the Hoare annotation is: true [2019-10-15 01:21:29,803 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 427 433) no Hoare annotation was computed. [2019-10-15 01:21:29,803 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 434 442) no Hoare annotation was computed. [2019-10-15 01:21:29,803 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 434 442) the Hoare annotation is: true [2019-10-15 01:21:29,803 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 434 442) no Hoare annotation was computed. [2019-10-15 01:21:29,804 INFO L443 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2019-10-15 01:21:29,804 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 380 404) the Hoare annotation is: true [2019-10-15 01:21:29,804 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 380 404) no Hoare annotation was computed. [2019-10-15 01:21:29,804 INFO L446 ceAbstractionStarter]: At program point L394(line 394) the Hoare annotation is: true [2019-10-15 01:21:29,804 INFO L443 ceAbstractionStarter]: For program point L392(lines 392 398) no Hoare annotation was computed. [2019-10-15 01:21:29,804 INFO L446 ceAbstractionStarter]: At program point L390(line 390) the Hoare annotation is: true [2019-10-15 01:21:29,805 INFO L443 ceAbstractionStarter]: For program point L390-1(line 390) no Hoare annotation was computed. [2019-10-15 01:21:29,805 INFO L443 ceAbstractionStarter]: For program point L388(lines 388 401) no Hoare annotation was computed. [2019-10-15 01:21:29,805 INFO L443 ceAbstractionStarter]: For program point L388-1(lines 380 404) no Hoare annotation was computed. [2019-10-15 01:21:29,805 INFO L446 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: true [2019-10-15 01:21:29,805 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 516 538) the Hoare annotation is: true [2019-10-15 01:21:29,805 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 516 538) no Hoare annotation was computed. [2019-10-15 01:21:29,805 INFO L446 ceAbstractionStarter]: At program point L528(line 528) the Hoare annotation is: true [2019-10-15 01:21:29,805 INFO L446 ceAbstractionStarter]: At program point L528-1(line 528) the Hoare annotation is: true [2019-10-15 01:21:29,805 INFO L443 ceAbstractionStarter]: For program point L526(lines 526 533) no Hoare annotation was computed. [2019-10-15 01:21:29,806 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 526 533) no Hoare annotation was computed. [2019-10-15 01:21:29,806 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 516 538) no Hoare annotation was computed. [2019-10-15 01:21:29,806 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-10-15 01:21:29,806 INFO L446 ceAbstractionStarter]: At program point L523(line 523) the Hoare annotation is: true [2019-10-15 01:21:29,806 INFO L446 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: true [2019-10-15 01:21:29,806 INFO L446 ceAbstractionStarter]: At program point L522-1(line 522) the Hoare annotation is: true [2019-10-15 01:21:29,806 INFO L443 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2019-10-15 01:21:29,806 INFO L443 ceAbstractionStarter]: For program point L480(line 480) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 475 498) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 475 498) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 475 498) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L492(line 492) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L489(line 489) no Hoare annotation was computed. [2019-10-15 01:21:29,807 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L486(line 486) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L483(line 483) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L446 ceAbstractionStarter]: At program point L211(line 211) the Hoare annotation is: true [2019-10-15 01:21:29,808 INFO L443 ceAbstractionStarter]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2019-10-15 01:21:29,808 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 192 216) the Hoare annotation is: true [2019-10-15 01:21:29,809 INFO L446 ceAbstractionStarter]: At program point L206(line 206) the Hoare annotation is: true [2019-10-15 01:21:29,809 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 192 216) no Hoare annotation was computed. [2019-10-15 01:21:29,809 INFO L446 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: true [2019-10-15 01:21:29,809 INFO L443 ceAbstractionStarter]: For program point L200(lines 200 208) no Hoare annotation was computed. [2019-10-15 01:21:29,809 INFO L446 ceAbstractionStarter]: At program point L198(line 198) the Hoare annotation is: true [2019-10-15 01:21:29,809 INFO L443 ceAbstractionStarter]: For program point L198-1(line 198) no Hoare annotation was computed. [2019-10-15 01:21:29,809 INFO L443 ceAbstractionStarter]: For program point L196(lines 196 213) no Hoare annotation was computed. [2019-10-15 01:21:29,809 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 287 295) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 287 295) the Hoare annotation is: true [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 287 295) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 351 369) the Hoare annotation is: true [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point L360(lines 360 364) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L446 ceAbstractionStarter]: At program point L358(line 358) the Hoare annotation is: true [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 351 369) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point L358-1(line 358) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 351 369) no Hoare annotation was computed. [2019-10-15 01:21:29,810 INFO L443 ceAbstractionStarter]: For program point L315(lines 315 323) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point L315-2(lines 315 323) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point L303(lines 303 311) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 296 331) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point L303-2(lines 303 311) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 296 331) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point L326(line 326) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point L326-1(line 326) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 296 331) no Hoare annotation was computed. [2019-10-15 01:21:29,811 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 420 426) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 420 426) the Hoare annotation is: true [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 546 591) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 546 591) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 546 591) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 859 904) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point L879(lines 879 886) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 859 904) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 893) no Hoare annotation was computed. [2019-10-15 01:21:29,812 INFO L443 ceAbstractionStarter]: For program point L873-1(lines 873 893) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 859 904) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 506 515) the Hoare annotation is: true [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 506 515) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 506 515) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 276 286) the Hoare annotation is: true [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 276 286) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L446 ceAbstractionStarter]: At program point L281(line 281) the Hoare annotation is: true [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point L281-1(line 281) no Hoare annotation was computed. [2019-10-15 01:21:29,813 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 276 286) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 268 275) the Hoare annotation is: true [2019-10-15 01:21:29,814 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 268 275) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 268 275) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L443 ceAbstractionStarter]: For program point L989(lines 989 995) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 985 998) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 985 998) the Hoare annotation is: true [2019-10-15 01:21:29,814 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 985 998) no Hoare annotation was computed. [2019-10-15 01:21:29,814 INFO L446 ceAbstractionStarter]: At program point L224(line 224) the Hoare annotation is: true [2019-10-15 01:21:29,815 INFO L443 ceAbstractionStarter]: For program point L224-1(line 224) no Hoare annotation was computed. [2019-10-15 01:21:29,815 INFO L443 ceAbstractionStarter]: For program point L222(lines 222 239) no Hoare annotation was computed. [2019-10-15 01:21:29,815 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 218 242) no Hoare annotation was computed. [2019-10-15 01:21:29,815 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 218 242) the Hoare annotation is: true [2019-10-15 01:21:29,815 INFO L446 ceAbstractionStarter]: At program point L237(line 237) the Hoare annotation is: true [2019-10-15 01:21:29,815 INFO L443 ceAbstractionStarter]: For program point L237-1(lines 218 242) no Hoare annotation was computed. [2019-10-15 01:21:29,815 INFO L446 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: true [2019-10-15 01:21:29,815 INFO L446 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: true [2019-10-15 01:21:29,816 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 234) no Hoare annotation was computed. [2019-10-15 01:21:29,816 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2019-10-15 01:21:29,816 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2019-10-15 01:21:29,816 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 54 119) the Hoare annotation is: true [2019-10-15 01:21:29,816 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 54 119) no Hoare annotation was computed. [2019-10-15 01:21:29,816 INFO L446 ceAbstractionStarter]: At program point L112(lines 63 113) the Hoare annotation is: true [2019-10-15 01:21:29,816 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-10-15 01:21:29,816 INFO L446 ceAbstractionStarter]: At program point L102-2(lines 94 107) the Hoare annotation is: true [2019-10-15 01:21:29,817 INFO L443 ceAbstractionStarter]: For program point L65(lines 64 111) no Hoare annotation was computed. [2019-10-15 01:21:29,817 INFO L446 ceAbstractionStarter]: At program point L96(line 96) the Hoare annotation is: true [2019-10-15 01:21:29,817 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 107) no Hoare annotation was computed. [2019-10-15 01:21:29,817 INFO L446 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2019-10-15 01:21:29,817 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 90) no Hoare annotation was computed. [2019-10-15 01:21:29,817 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2019-10-15 01:21:29,817 INFO L446 ceAbstractionStarter]: At program point L109(lines 64 111) the Hoare annotation is: true [2019-10-15 01:21:29,817 INFO L446 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: true [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 54 119) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 70) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L833(lines 833 840) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L827(lines 827 847) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point L827-1(lines 827 847) no Hoare annotation was computed. [2019-10-15 01:21:29,818 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 813 858) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 813 858) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 813 858) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 243 250) the Hoare annotation is: true [2019-10-15 01:21:29,819 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 243 250) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 243 250) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 999 1007) no Hoare annotation was computed. [2019-10-15 01:21:29,819 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 999 1007) the Hoare annotation is: true [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 999 1007) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point L961(lines 961 969) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point L961-2(lines 961 969) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 953 975) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 953 975) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 953 975) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 410 419) no Hoare annotation was computed. [2019-10-15 01:21:29,820 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 410 419) no Hoare annotation was computed. [2019-10-15 01:21:29,821 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 410 419) no Hoare annotation was computed. [2019-10-15 01:21:29,821 INFO L443 ceAbstractionStarter]: For program point L799(lines 799 806) no Hoare annotation was computed. [2019-10-15 01:21:29,821 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 710 812) no Hoare annotation was computed. [2019-10-15 01:21:29,821 INFO L443 ceAbstractionStarter]: For program point L760(lines 759 779) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L791(line 791) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L791-1(line 791) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L756(lines 756 797) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L775(line 775) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L775-1(line 775) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 710 812) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L734(lines 734 738) no Hoare annotation was computed. [2019-10-15 01:21:29,822 INFO L443 ceAbstractionStarter]: For program point L798(lines 798 809) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point L761(lines 761 765) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point L759-2(lines 759 779) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 710 812) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point L780(lines 758 781) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point L739(lines 739 755) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,823 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2019-10-15 01:21:29,823 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,824 INFO L446 ceAbstractionStarter]: At program point L256(line 256) the Hoare annotation is: true [2019-10-15 01:21:29,824 INFO L443 ceAbstractionStarter]: For program point L256-1(line 256) no Hoare annotation was computed. [2019-10-15 01:21:29,825 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 251 267) no Hoare annotation was computed. [2019-10-15 01:21:29,825 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 251 267) the Hoare annotation is: true [2019-10-15 01:21:29,825 INFO L446 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: true [2019-10-15 01:21:29,825 INFO L443 ceAbstractionStarter]: For program point L262-1(lines 251 267) no Hoare annotation was computed. [2019-10-15 01:21:29,825 INFO L443 ceAbstractionStarter]: For program point L258(lines 258 264) no Hoare annotation was computed. [2019-10-15 01:21:29,825 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 332 350) no Hoare annotation was computed. [2019-10-15 01:21:29,825 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 332 350) the Hoare annotation is: true [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point L341(lines 341 345) no Hoare annotation was computed. [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 332 350) no Hoare annotation was computed. [2019-10-15 01:21:29,826 INFO L446 ceAbstractionStarter]: At program point L339(line 339) the Hoare annotation is: true [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point L339-1(line 339) no Hoare annotation was computed. [2019-10-15 01:21:29,826 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 976 984) the Hoare annotation is: true [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 976 984) no Hoare annotation was computed. [2019-10-15 01:21:29,826 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 976 984) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: true [2019-10-15 01:21:29,827 INFO L443 ceAbstractionStarter]: For program point L936-1(lines 932 943) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,827 INFO L446 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: true [2019-10-15 01:21:29,828 INFO L446 ceAbstractionStarter]: At program point L145(lines 145 151) the Hoare annotation is: true [2019-10-15 01:21:29,828 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 134 157) the Hoare annotation is: true [2019-10-15 01:21:29,829 INFO L446 ceAbstractionStarter]: At program point L140(line 140) the Hoare annotation is: true [2019-10-15 01:21:29,829 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2019-10-15 01:21:29,829 INFO L443 ceAbstractionStarter]: For program point L138(lines 137 156) no Hoare annotation was computed. [2019-10-15 01:21:29,829 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 134 157) no Hoare annotation was computed. [2019-10-15 01:21:29,829 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 445 474) no Hoare annotation was computed. [2019-10-15 01:21:29,829 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 445 474) the Hoare annotation is: true [2019-10-15 01:21:29,829 INFO L446 ceAbstractionStarter]: At program point L470(lines 445 474) the Hoare annotation is: true [2019-10-15 01:21:29,830 INFO L443 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2019-10-15 01:21:29,830 INFO L443 ceAbstractionStarter]: For program point L459(lines 459 463) no Hoare annotation was computed. [2019-10-15 01:21:29,830 INFO L446 ceAbstractionStarter]: At program point L459-1(lines 459 463) the Hoare annotation is: true [2019-10-15 01:21:29,830 INFO L443 ceAbstractionStarter]: For program point L456(line 456) no Hoare annotation was computed. [2019-10-15 01:21:29,830 INFO L446 ceAbstractionStarter]: At program point L455-2(lines 455 469) the Hoare annotation is: true [2019-10-15 01:21:29,830 INFO L446 ceAbstractionStarter]: At program point L451(line 451) the Hoare annotation is: true [2019-10-15 01:21:29,830 INFO L443 ceAbstractionStarter]: For program point L451-1(line 451) no Hoare annotation was computed. [2019-10-15 01:21:29,830 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 944 952) the Hoare annotation is: true [2019-10-15 01:21:29,830 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 944 952) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 944 952) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L443 ceAbstractionStarter]: For program point L912-1(lines 908 919) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 908 919) the Hoare annotation is: true [2019-10-15 01:21:29,831 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 908 919) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 499 505) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 499 505) the Hoare annotation is: true [2019-10-15 01:21:29,831 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,831 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:21:29,832 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:21:29,832 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:21:29,832 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2019-10-15 01:21:29,832 INFO L446 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: true [2019-10-15 01:21:29,832 INFO L443 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2019-10-15 01:21:29,832 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 166 190) the Hoare annotation is: true [2019-10-15 01:21:29,832 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 166 190) no Hoare annotation was computed. [2019-10-15 01:21:29,832 INFO L446 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2019-10-15 01:21:29,833 INFO L446 ceAbstractionStarter]: At program point L180(line 180) the Hoare annotation is: true [2019-10-15 01:21:29,833 INFO L446 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: true [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point L174(lines 174 182) no Hoare annotation was computed. [2019-10-15 01:21:29,833 INFO L446 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: true [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point L172-1(line 172) no Hoare annotation was computed. [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point L170(lines 170 187) no Hoare annotation was computed. [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2019-10-15 01:21:29,833 INFO L443 ceAbstractionStarter]: For program point L924-1(lines 920 931) no Hoare annotation was computed. [2019-10-15 01:21:29,834 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: true [2019-10-15 01:21:29,834 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:29,834 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-15 01:21:29,834 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2019-10-15 01:21:29,836 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2019-10-15 01:21:29,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:21:29 BoogieIcfgContainer [2019-10-15 01:21:29,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:21:29,859 INFO L168 Benchmark]: Toolchain (without parser) took 17500.30 ms. Allocated memory was 144.7 MB in the beginning and 513.3 MB in the end (delta: 368.6 MB). Free memory was 100.4 MB in the beginning and 144.7 MB in the end (delta: -44.3 MB). Peak memory consumption was 324.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,860 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.45 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 100.2 MB in the beginning and 166.0 MB in the end (delta: -65.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,866 INFO L168 Benchmark]: Boogie Preprocessor took 98.33 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 162.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,866 INFO L168 Benchmark]: RCFGBuilder took 1132.34 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 162.0 MB in the beginning and 190.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,867 INFO L168 Benchmark]: TraceAbstraction took 15534.32 ms. Allocated memory was 233.3 MB in the beginning and 513.3 MB in the end (delta: 280.0 MB). Free memory was 190.0 MB in the beginning and 144.7 MB in the end (delta: 45.3 MB). Peak memory consumption was 325.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:21:29,874 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 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.45 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 100.2 MB in the beginning and 166.0 MB in the end (delta: -65.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.33 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 162.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1132.34 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 162.0 MB in the beginning and 190.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15534.32 ms. Allocated memory was 233.3 MB in the beginning and 513.3 MB in the end (delta: 280.0 MB). Free memory was 190.0 MB in the beginning and 144.7 MB in the end (delta: 45.3 MB). Peak memory consumption was 325.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Result: SAFE, OverallTime: 15.4s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 2288 SDtfs, 1866 SDslu, 5984 SDs, 0 SdLazy, 3138 SolverSat, 670 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1525 GetRequests, 1395 SyntacticMatches, 17 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1360occurred 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: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 147 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2625 PreInvPairs, 2626 NumberOfFragments, 77 HoareAnnotationTreeSize, 2625 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 71 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2155 NumberOfCodeBlocks, 2155 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2907 ConstructedInterpolants, 0 QuantifiedInterpolants, 648943 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4509 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 573/654 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 134, 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...