/usr/bin/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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:01:59,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:01:59,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:01:59,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:01:59,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:01:59,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:01:59,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:01:59,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:01:59,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:01:59,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:01:59,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:01:59,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:01:59,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:01:59,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:01:59,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:01:59,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:01:59,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:01:59,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:01:59,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:01:59,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:01:59,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:01:59,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:01:59,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:01:59,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:01:59,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:01:59,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:01:59,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:01:59,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:01:59,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:01:59,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:01:59,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:01:59,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:01:59,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:01:59,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:01:59,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:01:59,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:01:59,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:01:59,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:01:59,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:01:59,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:01:59,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:01:59,416 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 [2019-11-07 01:01:59,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:01:59,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:01:59,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:01:59,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:01:59,432 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:01:59,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:01:59,433 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:01:59,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:01:59,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:01:59,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:01:59,435 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:01:59,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:01:59,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:01:59,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:01:59,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:01:59,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:01:59,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:01:59,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:01:59,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:01:59,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:01:59,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:01:59,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:01:59,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:01:59,437 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 [2019-11-07 01:01:59,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:01:59,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:01:59,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:01:59,728 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:01:59,728 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:01:59,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product57.cil.c [2019-11-07 01:01:59,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a61fdf4/33b7695271354289af59b655692447ea/FLAGd1a78425a [2019-11-07 01:02:00,374 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:02:00,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product57.cil.c [2019-11-07 01:02:00,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a61fdf4/33b7695271354289af59b655692447ea/FLAGd1a78425a [2019-11-07 01:02:00,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a61fdf4/33b7695271354289af59b655692447ea [2019-11-07 01:02:00,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:02:00,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:02:00,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:02:00,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:02:00,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:02:00,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:00" (1/1) ... [2019-11-07 01:02:00,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55dca301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:00, skipping insertion in model container [2019-11-07 01:02:00,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:00" (1/1) ... [2019-11-07 01:02:00,742 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:02:00,860 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:02:01,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:02:01,526 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:02:01,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:02:01,668 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:02:01,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01 WrapperNode [2019-11-07 01:02:01,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:02:01,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:02:01,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:02:01,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:02:01,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (1/1) ... [2019-11-07 01:02:01,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:02:01,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:02:01,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:02:01,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:02:01,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (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 [2019-11-07 01:02:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:02:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:02:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 01:02:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 01:02:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 01:02:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 01:02:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:02:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 01:02:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 01:02:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 01:02:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 01:02:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 01:02:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 01:02:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 01:02:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 01:02:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 01:02:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 01:02:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 01:02:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 01:02:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 01:02:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 01:02:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 01:02:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 01:02:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 01:02:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 01:02:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 01:02:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 01:02:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 01:02:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 01:02:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 01:02:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 01:02:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 01:02:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 01:02:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 01:02:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 01:02:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 01:02:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 01:02:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 01:02:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 01:02:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 01:02:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 01:02:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 01:02:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 01:02:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 01:02:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 01:02:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 01:02:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 01:02:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 01:02:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 01:02:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 01:02:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 01:02:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 01:02:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:02:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 01:02:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 01:02:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 01:02:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 01:02:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 01:02:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 01:02:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:02:01,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 01:02:01,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 01:02:01,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 01:02:01,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:02:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:02:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:02:02,916 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:02:02,917 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 01:02:02,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:02 BoogieIcfgContainer [2019-11-07 01:02:02,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:02:02,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:02:02,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:02:02,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:02:02,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:02:00" (1/3) ... [2019-11-07 01:02:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0ab588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:02, skipping insertion in model container [2019-11-07 01:02:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:01" (2/3) ... [2019-11-07 01:02:02,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0ab588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:02, skipping insertion in model container [2019-11-07 01:02:02,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:02" (3/3) ... [2019-11-07 01:02:02,927 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2019-11-07 01:02:02,937 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:02:02,945 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:02:02,957 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:02:02,985 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:02:02,985 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:02:02,985 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:02:02,986 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:02:02,986 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:02:02,986 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:02:02,986 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:02:02,986 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:02:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-11-07 01:02:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 01:02:03,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:03,023 INFO L410 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] [2019-11-07 01:02:03,026 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:03,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:03,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1827061433, now seen corresponding path program 1 times [2019-11-07 01:02:03,043 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:03,043 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922463178] [2019-11-07 01:02:03,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:03,419 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922463178] [2019-11-07 01:02:03,421 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:03,421 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 01:02:03,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988354328] [2019-11-07 01:02:03,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 01:02:03,435 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:03,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 01:02:03,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 01:02:03,454 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2019-11-07 01:02:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:03,501 INFO L93 Difference]: Finished difference Result 286 states and 349 transitions. [2019-11-07 01:02:03,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:02:03,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-11-07 01:02:03,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:03,516 INFO L225 Difference]: With dead ends: 286 [2019-11-07 01:02:03,516 INFO L226 Difference]: Without dead ends: 143 [2019-11-07 01:02:03,521 INFO L630 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 [2019-11-07 01:02:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-07 01:02:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-11-07 01:02:03,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-07 01:02:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2019-11-07 01:02:03,577 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 46 [2019-11-07 01:02:03,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:03,578 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2019-11-07 01:02:03,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 01:02:03,578 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2019-11-07 01:02:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 01:02:03,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:03,582 INFO L410 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] [2019-11-07 01:02:03,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:03,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:03,583 INFO L82 PathProgramCache]: Analyzing trace with hash 632131827, now seen corresponding path program 1 times [2019-11-07 01:02:03,583 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:03,584 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340869694] [2019-11-07 01:02:03,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:03,749 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340869694] [2019-11-07 01:02:03,749 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:03,749 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:02:03,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288514079] [2019-11-07 01:02:03,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:02:03,753 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:03,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:02:03,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:02:03,754 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 3 states. [2019-11-07 01:02:03,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:03,806 INFO L93 Difference]: Finished difference Result 235 states and 271 transitions. [2019-11-07 01:02:03,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:02:03,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-07 01:02:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:03,810 INFO L225 Difference]: With dead ends: 235 [2019-11-07 01:02:03,810 INFO L226 Difference]: Without dead ends: 134 [2019-11-07 01:02:03,812 INFO L630 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 [2019-11-07 01:02:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-07 01:02:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-11-07 01:02:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-07 01:02:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2019-11-07 01:02:03,828 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 47 [2019-11-07 01:02:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:03,829 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2019-11-07 01:02:03,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:02:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2019-11-07 01:02:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 01:02:03,831 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:03,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:02:03,832 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:03,832 INFO L82 PathProgramCache]: Analyzing trace with hash 880596518, now seen corresponding path program 1 times [2019-11-07 01:02:03,833 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:03,833 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859058501] [2019-11-07 01:02:03,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:04,011 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859058501] [2019-11-07 01:02:04,012 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:04,012 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 01:02:04,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908411597] [2019-11-07 01:02:04,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 01:02:04,013 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:04,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 01:02:04,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:02:04,014 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand 7 states. [2019-11-07 01:02:04,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:04,372 INFO L93 Difference]: Finished difference Result 244 states and 285 transitions. [2019-11-07 01:02:04,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:02:04,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-11-07 01:02:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:04,376 INFO L225 Difference]: With dead ends: 244 [2019-11-07 01:02:04,376 INFO L226 Difference]: Without dead ends: 134 [2019-11-07 01:02:04,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 01:02:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-07 01:02:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-11-07 01:02:04,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-07 01:02:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2019-11-07 01:02:04,412 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 51 [2019-11-07 01:02:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:04,412 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2019-11-07 01:02:04,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 01:02:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2019-11-07 01:02:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-07 01:02:04,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:04,416 INFO L410 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] [2019-11-07 01:02:04,418 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:04,419 INFO L82 PathProgramCache]: Analyzing trace with hash -316946775, now seen corresponding path program 1 times [2019-11-07 01:02:04,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:04,419 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358731140] [2019-11-07 01:02:04,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:04,595 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358731140] [2019-11-07 01:02:04,595 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:04,595 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 01:02:04,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391627138] [2019-11-07 01:02:04,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 01:02:04,596 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:04,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:02:04,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 01:02:04,597 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2019-11-07 01:02:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:05,064 INFO L93 Difference]: Finished difference Result 340 states and 405 transitions. [2019-11-07 01:02:05,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:02:05,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-11-07 01:02:05,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:05,068 INFO L225 Difference]: With dead ends: 340 [2019-11-07 01:02:05,068 INFO L226 Difference]: Without dead ends: 230 [2019-11-07 01:02:05,069 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 01:02:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-11-07 01:02:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2019-11-07 01:02:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-11-07 01:02:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 240 transitions. [2019-11-07 01:02:05,111 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 240 transitions. Word has length 64 [2019-11-07 01:02:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:05,112 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 240 transitions. [2019-11-07 01:02:05,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 01:02:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 240 transitions. [2019-11-07 01:02:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-07 01:02:05,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:05,115 INFO L410 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] [2019-11-07 01:02:05,116 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:05,116 INFO L82 PathProgramCache]: Analyzing trace with hash 924041624, now seen corresponding path program 1 times [2019-11-07 01:02:05,116 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:05,116 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380107927] [2019-11-07 01:02:05,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:05,253 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380107927] [2019-11-07 01:02:05,254 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:05,254 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 01:02:05,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29575890] [2019-11-07 01:02:05,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 01:02:05,257 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:05,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 01:02:05,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 01:02:05,259 INFO L87 Difference]: Start difference. First operand 212 states and 240 transitions. Second operand 10 states. [2019-11-07 01:02:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:05,927 INFO L93 Difference]: Finished difference Result 686 states and 844 transitions. [2019-11-07 01:02:05,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 01:02:05,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2019-11-07 01:02:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:05,934 INFO L225 Difference]: With dead ends: 686 [2019-11-07 01:02:05,937 INFO L226 Difference]: Without dead ends: 498 [2019-11-07 01:02:05,938 INFO L630 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 [2019-11-07 01:02:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-11-07 01:02:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 488. [2019-11-07 01:02:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2019-11-07 01:02:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 571 transitions. [2019-11-07 01:02:06,006 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 571 transitions. Word has length 78 [2019-11-07 01:02:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:06,006 INFO L462 AbstractCegarLoop]: Abstraction has 488 states and 571 transitions. [2019-11-07 01:02:06,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 01:02:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2019-11-07 01:02:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-07 01:02:06,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:06,012 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:02:06,012 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:06,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:06,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2049323846, now seen corresponding path program 1 times [2019-11-07 01:02:06,013 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:06,013 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165165254] [2019-11-07 01:02:06,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-07 01:02:06,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165165254] [2019-11-07 01:02:06,152 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166750466] [2019-11-07 01:02:06,152 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 [2019-11-07 01:02:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:06,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-07 01:02:06,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:06,608 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:06,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:02:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 01:02:07,046 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:02:07,046 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 16 [2019-11-07 01:02:07,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909106972] [2019-11-07 01:02:07,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 01:02:07,048 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:07,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 01:02:07,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-07 01:02:07,049 INFO L87 Difference]: Start difference. First operand 488 states and 571 transitions. Second operand 8 states. [2019-11-07 01:02:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:08,527 INFO L93 Difference]: Finished difference Result 1243 states and 1604 transitions. [2019-11-07 01:02:08,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 01:02:08,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2019-11-07 01:02:08,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:08,534 INFO L225 Difference]: With dead ends: 1243 [2019-11-07 01:02:08,534 INFO L226 Difference]: Without dead ends: 892 [2019-11-07 01:02:08,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 293 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2019-11-07 01:02:08,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2019-11-07 01:02:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 821. [2019-11-07 01:02:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-11-07 01:02:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1002 transitions. [2019-11-07 01:02:08,597 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1002 transitions. Word has length 152 [2019-11-07 01:02:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:08,597 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 1002 transitions. [2019-11-07 01:02:08,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 01:02:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1002 transitions. [2019-11-07 01:02:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 01:02:08,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:08,601 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:08,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:08,806 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:08,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:08,806 INFO L82 PathProgramCache]: Analyzing trace with hash 173885476, now seen corresponding path program 1 times [2019-11-07 01:02:08,807 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:08,807 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410336705] [2019-11-07 01:02:08,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:08,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410336705] [2019-11-07 01:02:08,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163509904] [2019-11-07 01:02:08,900 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 [2019-11-07 01:02:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:09,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 01:02:09,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:09,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 01:02:09,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:09,418 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:02:09,418 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2019-11-07 01:02:09,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125040391] [2019-11-07 01:02:09,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:02:09,419 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:09,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:02:09,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:02:09,420 INFO L87 Difference]: Start difference. First operand 821 states and 1002 transitions. Second operand 6 states. [2019-11-07 01:02:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:09,482 INFO L93 Difference]: Finished difference Result 1646 states and 2084 transitions. [2019-11-07 01:02:09,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:02:09,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2019-11-07 01:02:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:09,489 INFO L225 Difference]: With dead ends: 1646 [2019-11-07 01:02:09,490 INFO L226 Difference]: Without dead ends: 849 [2019-11-07 01:02:09,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:02:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2019-11-07 01:02:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 841. [2019-11-07 01:02:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2019-11-07 01:02:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1026 transitions. [2019-11-07 01:02:09,545 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1026 transitions. Word has length 143 [2019-11-07 01:02:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:09,545 INFO L462 AbstractCegarLoop]: Abstraction has 841 states and 1026 transitions. [2019-11-07 01:02:09,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:02:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1026 transitions. [2019-11-07 01:02:09,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 01:02:09,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:09,548 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:09,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:09,753 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1445089438, now seen corresponding path program 1 times [2019-11-07 01:02:09,755 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:09,755 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709120326] [2019-11-07 01:02:09,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:09,843 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709120326] [2019-11-07 01:02:09,843 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585007371] [2019-11-07 01:02:09,843 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 [2019-11-07 01:02:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:10,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 01:02:10,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 01:02:10,092 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 01:02:10,403 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 01:02:10,403 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2019-11-07 01:02:10,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434100159] [2019-11-07 01:02:10,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 01:02:10,404 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:02:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-11-07 01:02:10,405 INFO L87 Difference]: Start difference. First operand 841 states and 1026 transitions. Second operand 5 states. [2019-11-07 01:02:10,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:10,458 INFO L93 Difference]: Finished difference Result 1482 states and 1850 transitions. [2019-11-07 01:02:10,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 01:02:10,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2019-11-07 01:02:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:10,464 INFO L225 Difference]: With dead ends: 1482 [2019-11-07 01:02:10,464 INFO L226 Difference]: Without dead ends: 665 [2019-11-07 01:02:10,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-11-07 01:02:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-11-07 01:02:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2019-11-07 01:02:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2019-11-07 01:02:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 804 transitions. [2019-11-07 01:02:10,509 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 804 transitions. Word has length 143 [2019-11-07 01:02:10,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:10,510 INFO L462 AbstractCegarLoop]: Abstraction has 665 states and 804 transitions. [2019-11-07 01:02:10,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 01:02:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 804 transitions. [2019-11-07 01:02:10,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 01:02:10,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:10,512 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:10,717 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:10,717 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:10,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:10,718 INFO L82 PathProgramCache]: Analyzing trace with hash -416837817, now seen corresponding path program 1 times [2019-11-07 01:02:10,718 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:10,718 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805264825] [2019-11-07 01:02:10,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 01:02:10,827 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805264825] [2019-11-07 01:02:10,828 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:10,828 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:02:10,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29065816] [2019-11-07 01:02:10,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:02:10,829 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:10,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:02:10,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:02:10,831 INFO L87 Difference]: Start difference. First operand 665 states and 804 transitions. Second operand 6 states. [2019-11-07 01:02:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:10,888 INFO L93 Difference]: Finished difference Result 1262 states and 1548 transitions. [2019-11-07 01:02:10,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 01:02:10,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-11-07 01:02:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:10,893 INFO L225 Difference]: With dead ends: 1262 [2019-11-07 01:02:10,893 INFO L226 Difference]: Without dead ends: 680 [2019-11-07 01:02:10,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:02:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2019-11-07 01:02:10,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2019-11-07 01:02:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-11-07 01:02:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 819 transitions. [2019-11-07 01:02:10,936 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 819 transitions. Word has length 147 [2019-11-07 01:02:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:10,937 INFO L462 AbstractCegarLoop]: Abstraction has 680 states and 819 transitions. [2019-11-07 01:02:10,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:02:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 819 transitions. [2019-11-07 01:02:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 01:02:10,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:10,939 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:02:10,940 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:10,940 INFO L82 PathProgramCache]: Analyzing trace with hash -926310907, now seen corresponding path program 1 times [2019-11-07 01:02:10,940 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:10,940 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387247866] [2019-11-07 01:02:10,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 01:02:11,023 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387247866] [2019-11-07 01:02:11,024 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:02:11,024 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:02:11,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760235257] [2019-11-07 01:02:11,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:02:11,025 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:02:11,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:02:11,025 INFO L87 Difference]: Start difference. First operand 680 states and 819 transitions. Second operand 6 states. [2019-11-07 01:02:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:11,204 INFO L93 Difference]: Finished difference Result 697 states and 838 transitions. [2019-11-07 01:02:11,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 01:02:11,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-11-07 01:02:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:11,209 INFO L225 Difference]: With dead ends: 697 [2019-11-07 01:02:11,209 INFO L226 Difference]: Without dead ends: 694 [2019-11-07 01:02:11,210 INFO L630 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 [2019-11-07 01:02:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2019-11-07 01:02:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 680. [2019-11-07 01:02:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-11-07 01:02:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 815 transitions. [2019-11-07 01:02:11,261 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 815 transitions. Word has length 147 [2019-11-07 01:02:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:11,261 INFO L462 AbstractCegarLoop]: Abstraction has 680 states and 815 transitions. [2019-11-07 01:02:11,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:02:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 815 transitions. [2019-11-07 01:02:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-11-07 01:02:11,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:02:11,266 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:02:11,266 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:02:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:11,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1724095999, now seen corresponding path program 1 times [2019-11-07 01:02:11,267 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:02:11,267 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738715627] [2019-11-07 01:02:11,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:02:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 01:02:11,435 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738715627] [2019-11-07 01:02:11,436 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113600578] [2019-11-07 01:02:11,436 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 [2019-11-07 01:02:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:02:11,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 01:02:11,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:02:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:02:11,763 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:02:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 01:02:12,069 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1774807478] [2019-11-07 01:02:12,077 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 152 [2019-11-07 01:02:12,160 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 01:02:12,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 01:02:12,258 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 01:02:12,260 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. [2019-11-07 01:02:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:02:12,264 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 01:02:12,324 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-11-07 01:02:12,325 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 01:02:12,328 INFO L553 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2019-11-07 01:02:12,329 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 01:02:12,329 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 01:02:12,330 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 9, 9] total 14 [2019-11-07 01:02:12,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28958520] [2019-11-07 01:02:12,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 01:02:12,331 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:02:12,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:02:12,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-07 01:02:12,332 INFO L87 Difference]: Start difference. First operand 680 states and 815 transitions. Second operand 2 states. [2019-11-07 01:02:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:02:12,342 INFO L93 Difference]: Finished difference Result 680 states and 815 transitions. [2019-11-07 01:02:12,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:02:12,342 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 151 [2019-11-07 01:02:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:02:12,343 INFO L225 Difference]: With dead ends: 680 [2019-11-07 01:02:12,343 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 01:02:12,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 293 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-07 01:02:12,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 01:02:12,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 01:02:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 01:02:12,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 01:02:12,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2019-11-07 01:02:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:02:12,346 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 01:02:12,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 01:02:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 01:02:12,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 01:02:12,556 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:02:12,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 01:02:12,913 INFO L443 ceAbstractionStarter]: For program point L698(lines 675 699) no Hoare annotation was computed. [2019-11-07 01:02:12,914 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeFINAL(lines 651 706) no Hoare annotation was computed. [2019-11-07 01:02:12,914 INFO L443 ceAbstractionStarter]: For program point L682(lines 682 686) no Hoare annotation was computed. [2019-11-07 01:02:12,914 INFO L443 ceAbstractionStarter]: For program point L682-1(lines 682 686) no Hoare annotation was computed. [2019-11-07 01:02:12,914 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 651 706) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L677(line 677) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 651 706) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L676-2(lines 676 697) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L734(line 734) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L733-2(lines 733 758) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L759(lines 732 760) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 707 766) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L752(line 752) no Hoare annotation was computed. [2019-11-07 01:02:12,915 INFO L443 ceAbstractionStarter]: For program point L752-1(line 752) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 707 766) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 707 766) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point L739(lines 739 743) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point L739-1(lines 739 743) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 486 492) the Hoare annotation is: true [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 486 492) no Hoare annotation was computed. [2019-11-07 01:02:12,916 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 493 501) no Hoare annotation was computed. [2019-11-07 01:02:12,917 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 493 501) the Hoare annotation is: true [2019-11-07 01:02:12,917 INFO L443 ceAbstractionStarter]: For program point valid_productFINAL(lines 493 501) no Hoare annotation was computed. [2019-11-07 01:02:12,917 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 336 360) the Hoare annotation is: true [2019-11-07 01:02:12,917 INFO L446 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: true [2019-11-07 01:02:12,917 INFO L443 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2019-11-07 01:02:12,917 INFO L446 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: true [2019-11-07 01:02:12,917 INFO L443 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2019-11-07 01:02:12,917 INFO L443 ceAbstractionStarter]: For program point L344(lines 344 357) no Hoare annotation was computed. [2019-11-07 01:02:12,917 INFO L443 ceAbstractionStarter]: For program point L344-1(lines 336 360) no Hoare annotation was computed. [2019-11-07 01:02:12,918 INFO L446 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: true [2019-11-07 01:02:12,918 INFO L443 ceAbstractionStarter]: For program point L342-1(line 342) no Hoare annotation was computed. [2019-11-07 01:02:12,918 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 336 360) no Hoare annotation was computed. [2019-11-07 01:02:12,918 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 575 597) the Hoare annotation is: true [2019-11-07 01:02:12,918 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 575 597) no Hoare annotation was computed. [2019-11-07 01:02:12,918 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 575 597) no Hoare annotation was computed. [2019-11-07 01:02:12,919 INFO L446 ceAbstractionStarter]: At program point L587(line 587) the Hoare annotation is: true [2019-11-07 01:02:12,919 INFO L446 ceAbstractionStarter]: At program point L587-1(line 587) the Hoare annotation is: true [2019-11-07 01:02:12,919 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 592) no Hoare annotation was computed. [2019-11-07 01:02:12,919 INFO L443 ceAbstractionStarter]: For program point L585-1(lines 585 592) no Hoare annotation was computed. [2019-11-07 01:02:12,919 INFO L443 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2019-11-07 01:02:12,919 INFO L446 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: true [2019-11-07 01:02:12,919 INFO L446 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: true [2019-11-07 01:02:12,919 INFO L446 ceAbstractionStarter]: At program point L581-1(line 581) the Hoare annotation is: true [2019-11-07 01:02:12,920 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-07 01:02:12,920 INFO L443 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2019-11-07 01:02:12,920 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 534 557) no Hoare annotation was computed. [2019-11-07 01:02:12,920 INFO L443 ceAbstractionStarter]: For program point L543(line 543) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 534 557) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L540(line 540) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 534 557) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L552(line 552) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-07 01:02:12,921 INFO L443 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point L549(line 549) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 250 258) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 250 258) the Hoare annotation is: true [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 250 258) no Hoare annotation was computed. [2019-11-07 01:02:12,922 INFO L446 ceAbstractionStarter]: At program point L321(line 321) the Hoare annotation is: true [2019-11-07 01:02:12,922 INFO L443 ceAbstractionStarter]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 314 332) the Hoare annotation is: true [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 314 332) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point L323(lines 323 327) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 314 332) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point L289(line 289) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point L289-1(line 289) no Hoare annotation was computed. [2019-11-07 01:02:12,923 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 286) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point L278-2(lines 278 286) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point printPumpFINAL(lines 259 294) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point L266(lines 266 274) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point L266-2(lines 266 274) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 259 294) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 259 294) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 479 485) no Hoare annotation was computed. [2019-11-07 01:02:12,924 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 479 485) the Hoare annotation is: true [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 605 650) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 605 650) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setFINAL(lines 605 650) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeFINAL(lines 918 963) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 918 963) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point L938(lines 938 945) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 918 963) no Hoare annotation was computed. [2019-11-07 01:02:12,925 INFO L443 ceAbstractionStarter]: For program point L932(lines 932 952) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L443 ceAbstractionStarter]: For program point L932-1(lines 932 952) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L446 ceAbstractionStarter]: At program point runTestENTRY(lines 565 574) the Hoare annotation is: true [2019-11-07 01:02:12,926 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 565 574) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 565 574) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 239 249) the Hoare annotation is: true [2019-11-07 01:02:12,926 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 239 249) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 239 249) no Hoare annotation was computed. [2019-11-07 01:02:12,926 INFO L446 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 231 238) the Hoare annotation is: true [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 231 238) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 231 238) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L446 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2019-11-07 01:02:12,927 INFO L443 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2019-11-07 01:02:12,927 INFO L446 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: true [2019-11-07 01:02:12,928 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2019-11-07 01:02:12,928 INFO L446 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: true [2019-11-07 01:02:12,928 INFO L443 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2019-11-07 01:02:12,928 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2019-11-07 01:02:12,928 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 180 204) no Hoare annotation was computed. [2019-11-07 01:02:12,928 INFO L446 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 180 204) the Hoare annotation is: true [2019-11-07 01:02:12,928 INFO L446 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: true [2019-11-07 01:02:12,928 INFO L443 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2019-11-07 01:02:12,928 INFO L446 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: true [2019-11-07 01:02:12,929 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2019-11-07 01:02:12,929 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2019-11-07 01:02:12,929 INFO L446 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: true [2019-11-07 01:02:12,929 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2019-11-07 01:02:12,929 INFO L446 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: true [2019-11-07 01:02:12,929 INFO L443 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2019-11-07 01:02:12,929 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-11-07 01:02:12,929 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2019-11-07 01:02:12,929 INFO L446 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: true [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L446 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: true [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L446 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: true [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2019-11-07 01:02:12,930 INFO L446 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: true [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point L892(lines 892 899) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 872 917) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point L886(lines 886 906) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point L886-1(lines 886 906) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 872 917) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argFINAL(lines 872 917) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L446 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 205 212) the Hoare annotation is: true [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 205 212) no Hoare annotation was computed. [2019-11-07 01:02:12,931 INFO L443 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 205 212) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 455 463) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 455 463) the Hoare annotation is: true [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 455 463) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point L417(lines 417 425) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point L417-2(lines 417 425) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 409 431) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 409 431) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point printEnvironmentFINAL(lines 409 431) no Hoare annotation was computed. [2019-11-07 01:02:12,932 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 469 478) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point select_oneFINAL(lines 469 478) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 469 478) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L834-1(line 834) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 769 871) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L793(lines 793 797) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L857(lines 857 868) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L820(lines 820 824) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L818-2(lines 818 838) no Hoare annotation was computed. [2019-11-07 01:02:12,933 INFO L443 ceAbstractionStarter]: For program point L839(lines 817 840) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 769 871) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L798(lines 798 814) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L858(lines 858 865) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L819(lines 818 838) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L850(line 850) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 769 871) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L850-1(line 850) no Hoare annotation was computed. [2019-11-07 01:02:12,934 INFO L443 ceAbstractionStarter]: For program point L815(lines 815 856) no Hoare annotation was computed. [2019-11-07 01:02:12,935 INFO L443 ceAbstractionStarter]: For program point L834(line 834) no Hoare annotation was computed. [2019-11-07 01:02:12,935 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,935 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)) [2019-11-07 01:02:12,935 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,935 INFO L446 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: true [2019-11-07 01:02:12,935 INFO L443 ceAbstractionStarter]: For program point L225-1(lines 214 230) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point L221(lines 221 227) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 214 230) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L446 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: true [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point L219-1(line 219) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L446 ceAbstractionStarter]: At program point activatePumpENTRY(lines 214 230) the Hoare annotation is: true [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 295 313) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point L304(lines 304 308) no Hoare annotation was computed. [2019-11-07 01:02:12,936 INFO L446 ceAbstractionStarter]: At program point L302(line 302) the Hoare annotation is: true [2019-11-07 01:02:12,936 INFO L443 ceAbstractionStarter]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2019-11-07 01:02:12,937 INFO L443 ceAbstractionStarter]: For program point L302-1(line 302) no Hoare annotation was computed. [2019-11-07 01:02:12,937 INFO L446 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 295 313) the Hoare annotation is: true [2019-11-07 01:02:12,937 INFO L443 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 295 313) no Hoare annotation was computed. [2019-11-07 01:02:12,937 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2019-11-07 01:02:12,937 INFO L443 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2019-11-07 01:02:12,937 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2019-11-07 01:02:12,937 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: true [2019-11-07 01:02:12,938 INFO L443 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2019-11-07 01:02:12,938 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2019-11-07 01:02:12,938 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L446 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: true [2019-11-07 01:02:12,939 INFO L443 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L446 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: true [2019-11-07 01:02:12,939 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L446 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: true [2019-11-07 01:02:12,939 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2019-11-07 01:02:12,939 INFO L446 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: true [2019-11-07 01:02:12,940 INFO L446 ceAbstractionStarter]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2019-11-07 01:02:12,940 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2019-11-07 01:02:12,940 INFO L446 ceAbstractionStarter]: At program point L510(line 510) the Hoare annotation is: true [2019-11-07 01:02:12,940 INFO L443 ceAbstractionStarter]: For program point L510-1(line 510) no Hoare annotation was computed. [2019-11-07 01:02:12,940 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2019-11-07 01:02:12,940 INFO L446 ceAbstractionStarter]: At program point L529(lines 504 533) the Hoare annotation is: true [2019-11-07 01:02:12,940 INFO L443 ceAbstractionStarter]: For program point L525(line 525) no Hoare annotation was computed. [2019-11-07 01:02:12,941 INFO L443 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2019-11-07 01:02:12,941 INFO L446 ceAbstractionStarter]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2019-11-07 01:02:12,941 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: true [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 558 564) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 558 564) the Hoare annotation is: true [2019-11-07 01:02:12,942 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,942 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-11-07 01:02:12,943 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 01:02:12,943 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:02:12,943 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: true [2019-11-07 01:02:12,943 INFO L446 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: true [2019-11-07 01:02:12,943 INFO L443 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2019-11-07 01:02:12,943 INFO L443 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2019-11-07 01:02:12,943 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2019-11-07 01:02:12,943 INFO L446 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: true [2019-11-07 01:02:12,943 INFO L443 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2019-11-07 01:02:12,944 INFO L446 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2019-11-07 01:02:12,944 INFO L446 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: true [2019-11-07 01:02:12,944 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2019-11-07 01:02:12,944 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2019-11-07 01:02:12,944 INFO L443 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2019-11-07 01:02:12,944 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: true [2019-11-07 01:02:12,944 INFO L443 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 965 972) no Hoare annotation was computed. [2019-11-07 01:02:12,944 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 965 972) the Hoare annotation is: true [2019-11-07 01:02:12,945 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2019-11-07 01:02:12,945 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 965 972) no Hoare annotation was computed. [2019-11-07 01:02:12,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:12 BoogieIcfgContainer [2019-11-07 01:02:12,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 01:02:12,957 INFO L168 Benchmark]: Toolchain (without parser) took 12272.96 ms. Allocated memory was 138.9 MB in the beginning and 459.3 MB in the end (delta: 320.3 MB). Free memory was 102.0 MB in the beginning and 349.8 MB in the end (delta: -247.8 MB). Peak memory consumption was 269.5 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,958 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 968.65 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 168.2 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,960 INFO L168 Benchmark]: Boogie Preprocessor took 83.25 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 164.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,960 INFO L168 Benchmark]: RCFGBuilder took 1165.44 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.3 MB in the beginning and 194.7 MB in the end (delta: -30.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,961 INFO L168 Benchmark]: TraceAbstraction took 10034.60 ms. Allocated memory was 236.5 MB in the beginning and 459.3 MB in the end (delta: 222.8 MB). Free memory was 193.3 MB in the beginning and 349.8 MB in the end (delta: -156.6 MB). Peak memory consumption was 263.2 MB. Max. memory is 7.1 GB. [2019-11-07 01:02:12,965 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 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 968.65 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 168.2 MB in the end (delta: -66.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.25 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 164.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.44 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.3 MB in the beginning and 194.7 MB in the end (delta: -30.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10034.60 ms. Allocated memory was 236.5 MB in the beginning and 459.3 MB in the end (delta: 222.8 MB). Free memory was 193.3 MB in the beginning and 349.8 MB in the end (delta: -156.6 MB). Peak memory consumption was 263.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: 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: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Result: SAFE, OverallTime: 9.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 1692 SDtfs, 1185 SDslu, 4197 SDs, 0 SdLazy, 1970 SolverSat, 440 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1286 GetRequests, 1183 SyntacticMatches, 14 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=841occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 121 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 1600 PreInvPairs, 1601 NumberOfFragments, 70 HoareAnnotationTreeSize, 1600 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 64 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1758 NumberOfCodeBlocks, 1758 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2328 ConstructedInterpolants, 0 QuantifiedInterpolants, 449028 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3468 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 362/417 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 187, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8733333333333333, 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...