/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:30:34,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:30:34,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:30:34,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:30:34,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:30:34,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:30:34,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:30:34,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:30:34,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:30:34,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:30:34,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:30:34,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:30:34,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:30:34,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:30:34,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:30:34,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:30:34,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:30:34,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:30:34,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:30:34,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:30:34,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:30:34,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:30:34,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:30:34,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:30:34,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:30:34,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:30:34,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:30:34,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:30:34,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:30:34,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:30:34,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:30:34,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:30:34,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:30:34,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:30:34,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:30:34,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:30:34,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:30:34,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:30:34,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:30:34,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:30:34,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:30:34,455 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 04:30:34,472 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:30:34,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:30:34,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:30:34,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:30:34,474 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:30:34,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:30:34,474 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:30:34,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:30:34,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:30:34,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:30:34,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:30:34,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:30:34,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:30:34,476 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:30:34,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:30:34,476 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:30:34,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:30:34,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:30:34,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:30:34,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:30:34,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:30:34,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:30:34,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:30:34,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:30:34,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:30:34,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:30:34,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:30:34,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:30:34,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:30:34,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:30:34,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:30:34,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:30:34,819 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:30:34,820 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:30:34,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-11-07 04:30:34,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b455c27/dcfbac0e75c846478aed8385bd766240/FLAG908d4f067 [2019-11-07 04:30:35,442 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:30:35,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-11-07 04:30:35,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b455c27/dcfbac0e75c846478aed8385bd766240/FLAG908d4f067 [2019-11-07 04:30:35,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b455c27/dcfbac0e75c846478aed8385bd766240 [2019-11-07 04:30:35,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:30:35,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:30:35,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:30:35,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:30:35,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:30:35,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:30:35" (1/1) ... [2019-11-07 04:30:35,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a65a681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:35, skipping insertion in model container [2019-11-07 04:30:35,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:30:35" (1/1) ... [2019-11-07 04:30:35,777 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:30:35,888 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:30:36,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:30:36,504 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:30:36,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:30:36,645 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:30:36,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36 WrapperNode [2019-11-07 04:30:36,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:30:36,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:30:36,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:30:36,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:30:36,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (1/1) ... [2019-11-07 04:30:36,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:30:36,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:30:36,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:30:36,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:30:36,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (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 04:30:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:30:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:30:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:30:36,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:30:36,824 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:30:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:30:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:30:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:30:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:30:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:30:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:30:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:30:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:30:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:30:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:30:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:30:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-07 04:30:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-07 04:30:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:30:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:30:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:30:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:30:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:30:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:30:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:30:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:30:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:30:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:30:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:30:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:30:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:30:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:30:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:30:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:30:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:30:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:30:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:30:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:30:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:30:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:30:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:30:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:30:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:30:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:30:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:30:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:30:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:30:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:30:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:30:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:30:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:30:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:30:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:30:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:30:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:30:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:30:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:30:38,469 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:30:38,469 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:30:38,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:30:38 BoogieIcfgContainer [2019-11-07 04:30:38,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:30:38,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:30:38,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:30:38,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:30:38,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:30:35" (1/3) ... [2019-11-07 04:30:38,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d0bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:30:38, skipping insertion in model container [2019-11-07 04:30:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:30:36" (2/3) ... [2019-11-07 04:30:38,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d0bc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:30:38, skipping insertion in model container [2019-11-07 04:30:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:30:38" (3/3) ... [2019-11-07 04:30:38,482 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-11-07 04:30:38,492 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:30:38,503 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:30:38,520 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:30:38,560 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:30:38,560 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:30:38,560 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:30:38,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:30:38,561 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:30:38,561 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:30:38,561 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:30:38,561 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:30:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-11-07 04:30:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:30:38,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:38,614 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 04:30:38,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:38,624 INFO L82 PathProgramCache]: Analyzing trace with hash 60094482, now seen corresponding path program 1 times [2019-11-07 04:30:38,638 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:38,638 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555670180] [2019-11-07 04:30:38,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:39,010 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 04:30:39,011 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555670180] [2019-11-07 04:30:39,012 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:39,012 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:30:39,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922258543] [2019-11-07 04:30:39,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:30:39,018 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:39,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:30:39,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:30:39,036 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-11-07 04:30:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:39,077 INFO L93 Difference]: Finished difference Result 216 states and 259 transitions. [2019-11-07 04:30:39,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:30:39,079 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-11-07 04:30:39,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:39,094 INFO L225 Difference]: With dead ends: 216 [2019-11-07 04:30:39,094 INFO L226 Difference]: Without dead ends: 110 [2019-11-07 04:30:39,099 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 04:30:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-07 04:30:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-07 04:30:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-07 04:30:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2019-11-07 04:30:39,158 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 46 [2019-11-07 04:30:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:39,159 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2019-11-07 04:30:39,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:30:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2019-11-07 04:30:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 04:30:39,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:39,163 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 04:30:39,163 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:39,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1957286119, now seen corresponding path program 1 times [2019-11-07 04:30:39,164 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:39,165 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001566420] [2019-11-07 04:30:39,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:39,340 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 04:30:39,340 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001566420] [2019-11-07 04:30:39,341 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:39,341 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:30:39,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681024685] [2019-11-07 04:30:39,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:30:39,345 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:30:39,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:30:39,346 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand 3 states. [2019-11-07 04:30:39,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:39,384 INFO L93 Difference]: Finished difference Result 174 states and 198 transitions. [2019-11-07 04:30:39,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:30:39,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-07 04:30:39,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:39,391 INFO L225 Difference]: With dead ends: 174 [2019-11-07 04:30:39,391 INFO L226 Difference]: Without dead ends: 102 [2019-11-07 04:30:39,393 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 04:30:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-07 04:30:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-07 04:30:39,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-07 04:30:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2019-11-07 04:30:39,422 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 47 [2019-11-07 04:30:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:39,422 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2019-11-07 04:30:39,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:30:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2019-11-07 04:30:39,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-07 04:30:39,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:39,430 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] [2019-11-07 04:30:39,432 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:39,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:39,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1775341699, now seen corresponding path program 1 times [2019-11-07 04:30:39,433 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:39,433 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930576685] [2019-11-07 04:30:39,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:39,649 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 04:30:39,649 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930576685] [2019-11-07 04:30:39,649 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:39,649 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:30:39,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117456554] [2019-11-07 04:30:39,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:30:39,650 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:39,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:30:39,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:30:39,651 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 7 states. [2019-11-07 04:30:39,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:39,971 INFO L93 Difference]: Finished difference Result 179 states and 204 transitions. [2019-11-07 04:30:39,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:30:39,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-11-07 04:30:39,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:39,974 INFO L225 Difference]: With dead ends: 179 [2019-11-07 04:30:39,974 INFO L226 Difference]: Without dead ends: 102 [2019-11-07 04:30:39,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:30:39,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-07 04:30:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-07 04:30:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-07 04:30:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2019-11-07 04:30:39,986 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 49 [2019-11-07 04:30:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:39,987 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2019-11-07 04:30:39,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:30:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2019-11-07 04:30:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-07 04:30:39,989 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:39,989 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] [2019-11-07 04:30:39,989 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:39,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:39,990 INFO L82 PathProgramCache]: Analyzing trace with hash 8463179, now seen corresponding path program 1 times [2019-11-07 04:30:39,990 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:39,990 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246866081] [2019-11-07 04:30:39,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:40,093 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 04:30:40,094 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246866081] [2019-11-07 04:30:40,094 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:40,094 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:30:40,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462203533] [2019-11-07 04:30:40,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:30:40,095 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:40,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:30:40,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:30:40,096 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand 5 states. [2019-11-07 04:30:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:40,707 INFO L93 Difference]: Finished difference Result 263 states and 308 transitions. [2019-11-07 04:30:40,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:30:40,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-11-07 04:30:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:40,710 INFO L225 Difference]: With dead ends: 263 [2019-11-07 04:30:40,710 INFO L226 Difference]: Without dead ends: 186 [2019-11-07 04:30:40,711 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 04:30:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2019-11-07 04:30:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 171. [2019-11-07 04:30:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-07 04:30:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 189 transitions. [2019-11-07 04:30:40,750 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 189 transitions. Word has length 62 [2019-11-07 04:30:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:40,752 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 189 transitions. [2019-11-07 04:30:40,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:30:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 189 transitions. [2019-11-07 04:30:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-07 04:30:40,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:40,757 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] [2019-11-07 04:30:40,762 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:40,763 INFO L82 PathProgramCache]: Analyzing trace with hash 756721838, now seen corresponding path program 1 times [2019-11-07 04:30:40,763 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:40,763 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251628994] [2019-11-07 04:30:40,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:40,939 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 04:30:40,940 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251628994] [2019-11-07 04:30:40,940 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:40,940 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:30:40,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499623906] [2019-11-07 04:30:40,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:30:40,943 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:40,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:30:40,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:30:40,943 INFO L87 Difference]: Start difference. First operand 171 states and 189 transitions. Second operand 6 states. [2019-11-07 04:30:41,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:41,144 INFO L93 Difference]: Finished difference Result 446 states and 508 transitions. [2019-11-07 04:30:41,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:30:41,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2019-11-07 04:30:41,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:41,156 INFO L225 Difference]: With dead ends: 446 [2019-11-07 04:30:41,156 INFO L226 Difference]: Without dead ends: 300 [2019-11-07 04:30:41,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:30:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-07 04:30:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 290. [2019-11-07 04:30:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-11-07 04:30:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 318 transitions. [2019-11-07 04:30:41,211 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 318 transitions. Word has length 71 [2019-11-07 04:30:41,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:41,212 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 318 transitions. [2019-11-07 04:30:41,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:30:41,212 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 318 transitions. [2019-11-07 04:30:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-07 04:30:41,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:41,213 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] [2019-11-07 04:30:41,214 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:41,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:41,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1633920219, now seen corresponding path program 1 times [2019-11-07 04:30:41,214 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:41,214 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749217444] [2019-11-07 04:30:41,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:41,311 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 04:30:41,311 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749217444] [2019-11-07 04:30:41,312 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:30:41,313 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:30:41,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046742343] [2019-11-07 04:30:41,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:30:41,314 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:41,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:30:41,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:30:41,314 INFO L87 Difference]: Start difference. First operand 290 states and 318 transitions. Second operand 3 states. [2019-11-07 04:30:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:41,358 INFO L93 Difference]: Finished difference Result 436 states and 502 transitions. [2019-11-07 04:30:41,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:30:41,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2019-11-07 04:30:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:41,364 INFO L225 Difference]: With dead ends: 436 [2019-11-07 04:30:41,364 INFO L226 Difference]: Without dead ends: 433 [2019-11-07 04:30:41,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:30:41,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-11-07 04:30:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-11-07 04:30:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-11-07 04:30:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 497 transitions. [2019-11-07 04:30:41,414 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 497 transitions. Word has length 74 [2019-11-07 04:30:41,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:41,414 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 497 transitions. [2019-11-07 04:30:41,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:30:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 497 transitions. [2019-11-07 04:30:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-07 04:30:41,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:41,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:41,418 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:41,418 INFO L82 PathProgramCache]: Analyzing trace with hash 522838102, now seen corresponding path program 1 times [2019-11-07 04:30:41,418 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:41,419 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842459480] [2019-11-07 04:30:41,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 04:30:41,727 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842459480] [2019-11-07 04:30:41,728 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320505149] [2019-11-07 04:30:41,728 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 04:30:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:41,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 04:30:41,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:30:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:30:42,065 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:30:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:30:42,276 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:30:42,276 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [14] total 19 [2019-11-07 04:30:42,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933130585] [2019-11-07 04:30:42,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:30:42,278 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:42,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:30:42,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:30:42,279 INFO L87 Difference]: Start difference. First operand 433 states and 497 transitions. Second operand 7 states. [2019-11-07 04:30:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:42,629 INFO L93 Difference]: Finished difference Result 706 states and 825 transitions. [2019-11-07 04:30:42,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:30:42,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-11-07 04:30:42,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:42,634 INFO L225 Difference]: With dead ends: 706 [2019-11-07 04:30:42,634 INFO L226 Difference]: Without dead ends: 417 [2019-11-07 04:30:42,635 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:30:42,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-11-07 04:30:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 398. [2019-11-07 04:30:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-11-07 04:30:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 444 transitions. [2019-11-07 04:30:42,708 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 444 transitions. Word has length 120 [2019-11-07 04:30:42,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:42,709 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 444 transitions. [2019-11-07 04:30:42,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:30:42,709 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 444 transitions. [2019-11-07 04:30:42,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-07 04:30:42,713 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:42,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:42,920 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:30:42,921 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:42,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1954551727, now seen corresponding path program 1 times [2019-11-07 04:30:42,922 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:42,922 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384782023] [2019-11-07 04:30:42,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:30:43,039 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384782023] [2019-11-07 04:30:43,039 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918157861] [2019-11-07 04:30:43,040 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 04:30:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:43,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 04:30:43,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:30:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:30:43,314 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:30:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:30:43,513 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:30:43,513 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-11-07 04:30:43,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139810690] [2019-11-07 04:30:43,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:30:43,514 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:43,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:30:43,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:30:43,515 INFO L87 Difference]: Start difference. First operand 398 states and 444 transitions. Second operand 3 states. [2019-11-07 04:30:43,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:43,616 INFO L93 Difference]: Finished difference Result 728 states and 814 transitions. [2019-11-07 04:30:43,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:30:43,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-11-07 04:30:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:43,619 INFO L225 Difference]: With dead ends: 728 [2019-11-07 04:30:43,619 INFO L226 Difference]: Without dead ends: 355 [2019-11-07 04:30:43,620 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 244 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:30:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-11-07 04:30:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2019-11-07 04:30:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-11-07 04:30:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 384 transitions. [2019-11-07 04:30:43,642 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 384 transitions. Word has length 122 [2019-11-07 04:30:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:43,643 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 384 transitions. [2019-11-07 04:30:43,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:30:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 384 transitions. [2019-11-07 04:30:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:30:43,645 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:43,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:43,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:30:43,850 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:43,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:43,851 INFO L82 PathProgramCache]: Analyzing trace with hash 2040046191, now seen corresponding path program 1 times [2019-11-07 04:30:43,851 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:43,851 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521297969] [2019-11-07 04:30:43,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:30:44,162 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521297969] [2019-11-07 04:30:44,162 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240905550] [2019-11-07 04:30:44,162 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 04:30:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:44,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-07 04:30:44,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:30:44,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:44,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:44,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:30:44,703 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:30:45,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:45,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:45,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:45,699 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-11-07 04:30:46,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:46,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:30:46,591 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:30:46,592 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14, 12] total 34 [2019-11-07 04:30:46,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335251134] [2019-11-07 04:30:46,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:30:46,593 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:30:46,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:30:46,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 04:30:46,594 INFO L87 Difference]: Start difference. First operand 355 states and 384 transitions. Second operand 12 states. [2019-11-07 04:30:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:30:48,236 INFO L93 Difference]: Finished difference Result 823 states and 930 transitions. [2019-11-07 04:30:48,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 04:30:48,237 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2019-11-07 04:30:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:30:48,241 INFO L225 Difference]: With dead ends: 823 [2019-11-07 04:30:48,241 INFO L226 Difference]: Without dead ends: 493 [2019-11-07 04:30:48,243 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 224 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=305, Invalid=1765, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 04:30:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-11-07 04:30:48,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 427. [2019-11-07 04:30:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-11-07 04:30:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 465 transitions. [2019-11-07 04:30:48,271 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 465 transitions. Word has length 125 [2019-11-07 04:30:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:30:48,271 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 465 transitions. [2019-11-07 04:30:48,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:30:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 465 transitions. [2019-11-07 04:30:48,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-07 04:30:48,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:30:48,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:48,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:30:48,480 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:30:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:30:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1724913290, now seen corresponding path program 1 times [2019-11-07 04:30:48,481 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:30:48,482 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565343308] [2019-11-07 04:30:48,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:30:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:30:48,776 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565343308] [2019-11-07 04:30:48,776 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938147930] [2019-11-07 04:30:48,777 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 04:30:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:30:49,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 50 conjunts are in the unsatisfiable core [2019-11-07 04:30:49,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:30:49,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:30:49,415 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:30:49,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:49,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:30:50,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 04:30:50,414 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [758553011] [2019-11-07 04:30:50,438 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-11-07 04:30:50,439 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:30:50,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:30:50,449 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:30:50,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:31:03,103 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:31:04,823 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:31:04,951 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:31:05,117 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:31:05,238 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:31:05,483 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:31:05,638 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:31:05,749 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:31:06,028 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:31:06,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:31:06,055 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:31:06,323 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:06,585 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:06,861 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:06,995 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:07,142 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:07,300 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:07,438 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:07,606 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:07,732 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:07,854 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:07,976 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:31:08,151 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:08,412 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:08,567 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:08,722 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:08,836 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:08,952 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,143 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,290 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,429 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,563 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,674 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:09,793 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:10,016 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:10,187 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:31:10,336 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:31:10,568 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:10,778 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:31:11,068 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:31:11,284 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:11,526 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:11,714 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:11,847 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:31:11,959 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:12,074 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:31:12,289 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:31:12,313 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 550 for LOIs [2019-11-07 04:31:12,663 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-11-07 04:31:12,928 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-11-07 04:31:13,257 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:13,477 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-11-07 04:31:13,641 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-11-07 04:31:13,782 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:31:13,790 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:31:14,659 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 566